CN209637960U - Crankshaft and compressor - Google Patents
Crankshaft and compressor Download PDFInfo
- Publication number
- CN209637960U CN209637960U CN201920382950.3U CN201920382950U CN209637960U CN 209637960 U CN209637960 U CN 209637960U CN 201920382950 U CN201920382950 U CN 201920382950U CN 209637960 U CN209637960 U CN 209637960U
- Authority
- CN
- China
- Prior art keywords
- crankshaft
- compressor
- bent axle
- layer
- utility
- 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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Links
- 238000009792 diffusion process Methods 0.000 claims abstract description 5
- 229910001141 Ductile iron Inorganic materials 0.000 claims abstract description 4
- 238000006396 nitration reaction Methods 0.000 claims description 7
- 150000001875 compounds Chemical class 0.000 abstract 3
- 238000010791 quenching Methods 0.000 description 7
- 239000002184 metal Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005121 nitriding Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000013036 cure process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
Landscapes
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The utility model discloses a bent axle and compressor, bent axle include the bent axle body, bent axle body surface has compound permeable layer, compound permeable layer includes oxide layer, nitrided layer and the diffusion layer that sets gradually by outer to interior, the bent axle body adopts nodular cast iron to make. The utility model discloses well compound oozing layer can improve bent axle surface hardness and wearability, is showing to reduce the friction loss between bent axle and the vice friction of complex to guaranteed the reliability operation of compressor, extension compressor life realizes reducing substantially the oil simultaneously, reaches the purpose that reduces the compressor cost.
Description
Technical field
The utility model relates to Compressor Technology fields, more particularly to a kind of crankshaft and compressor.
Background technique
In preceding rotary compressor, in order to reduce friction, abrasion are reduced, to improve the reliability of compressor and reduce pressure
The input power of contracting machine usually carries out phosphatization to crankshaft and molybdenumization is added to handle, but the mill between crankshaft friction pair engaged therewith
Damage is also difficult to avoid that.
Utility model content
The purpose of the utility model is to provide a kind of crankshaft and compressors, can reduce between crankshaft friction pair engaged therewith
Abrasion.
The technical solution of the utility model are as follows: provide a kind of crankshaft, including crankshaft body, the crankshaft body surface has
Compisite seeping layer, the compisite seeping layer include the oxide layer set gradually from outside to inside, nitration case and diffusion layer.
The crankshaft body is made of spheroidal graphite cast-iron.
The nitration case with a thickness of 5 microns to 10 microns.
The crankshaft surface hardness is 800HV to 1000HV.
The utility model also provides a kind of compressor, including crankshaft described above.
Crankshaft surface hardness and wearability can be improved in compisite seeping layer in the utility model, and the significant crankshaft that lowers cooperates with it
Friction pair between frictional dissipation extend compressor service life, while real to ensure that the reliability operation of compressor
Now significantly subtract oil, achievees the purpose that reduce compressor cost.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of crankshaft in the utility model.
Fig. 2 is the structure chart of compisite seeping layer in the utility model.
Specific embodiment
As depicted in figs. 1 and 2, a kind of crankshaft proposed in the utility model embodiment, including crankshaft body 10, crankshaft sheet
Body 10 is made of spheroidal graphite cast-iron QT600-3, and 10 surface of crankshaft body has a compisite seeping layer 11, and compisite seeping layer 11 includes by outside extremely
Oxide layer 111, nitration case 112 and the diffusion layer 113(inside set gradually is nearest apart from crankshaft body center), compisite seeping layer 11 can
To improve crankshaft surface hardness and wearability, the significant frictional dissipation lowered between crankshaft friction pair engaged therewith, to protect
Demonstrate,proved the reliability operation of compressor, extended compressor service life, while realizing and significantly subtracting oil, reach reduce compressor at
This purpose.
In the present embodiment, do not change the original structure of crankshaft and material, carries out Quench-Polish-Quench technology in crankshaft surface, pass through
Quench-Polish-Quench technology forms compisite seeping layer in crankshaft surface.
Quench-Polish-Quench technology technology be based on a kind of technique for being handled in nitriding salt bath and oxidation salt bath, can be simultaneously
The combined processing for realizing nitriding and oxidation, after metal is handled in the different watery fusion salt bath of two kinds of properties, with a variety of members
Element penetrates into crankshaft surface simultaneously, forms the compisite seeping layer being made of oxide layer, nitration case and diffusion layer, obtains crankshaft surface by force
Change, improves crankshaft surface hardness and wearability.In general, cure process can only improve the wearability of metal surface, preservative treatment one
As can only improve the corrosion stability of metal surface, and Quench-Polish-Quench technology can then increase substantially the hardness, wear-resisting of metal surface
Property and corrosion stability, performance are processed conventionally 2-3 times.
Compared with common nitridation process, temperature range used in the Quench-Polish-Quench technology technology is more extensive, using ball
The castiron crankshaft of ink is based on the duplicate protection of compisite seeping layer (nitride and oxide) after Quench-Polish-Quench technology, bent
Axis surface hardness can achieve 800HV to 1000HV, and wear-resisting property is obviously improved.Simultaneously because ion penetrates into and matrix
Reaction, will not excessively change the size of original workpiece, realize while guaranteeing the reliability operation of compressor and significantly subtract
Oil achievees the purpose that reduce compressor cost.Through analysis of experiments, the thickness of nitration case 112 is in the range of 5 μm to 10 μm, effect
Fruit is best.
The utility model also provides a kind of compressor, including above-mentioned crankshaft, by the crankshaft after Quench-Polish-Quench technology
Compressor is dressed up, then subtracts oil 50% on the basis of original oil mass and carries out 1000H accelerated aging, crankshaft illustrates lubricating without abrasion
Under the environment of effect difference, crankshaft after processing still shows excellent wearability.
Only to illustrate the design of the utility model, those skilled in the art's above specific embodiment exist
Various deformation and variation can be made under the design of the utility model, these are deformed and variation is included in the guarantor of the utility model
Within the scope of shield.
Claims (5)
1. a kind of crankshaft, including crankshaft body (10), which is characterized in that crankshaft body (10) surface has compisite seeping layer
(11), the compisite seeping layer (11) includes the oxide layer (111) set gradually from outside to inside, nitration case (112) and diffusion layer
(113).
2. crankshaft according to claim 1, which is characterized in that the crankshaft body (10) is made of spheroidal graphite cast-iron.
3. crankshaft according to claim 1 or 2, which is characterized in that the nitration case (112) with a thickness of 5 microns to 10
Micron.
4. crankshaft according to claim 1 or 2, which is characterized in that the crankshaft surface hardness is 800HV to 1000HV.
5. a kind of compressor, which is characterized in that including crankshaft described in any one of Claims 1-4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920382950.3U CN209637960U (en) | 2019-03-25 | 2019-03-25 | Crankshaft and compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920382950.3U CN209637960U (en) | 2019-03-25 | 2019-03-25 | Crankshaft and compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209637960U true CN209637960U (en) | 2019-11-15 |
Family
ID=68496887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920382950.3U Active CN209637960U (en) | 2019-03-25 | 2019-03-25 | Crankshaft and compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209637960U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114458584A (en) * | 2022-02-17 | 2022-05-10 | 西华大学 | Diaphragm with surface compressive stress and preparation method and application thereof |
-
2019
- 2019-03-25 CN CN201920382950.3U patent/CN209637960U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114458584A (en) * | 2022-02-17 | 2022-05-10 | 西华大学 | Diaphragm with surface compressive stress and preparation method and application thereof |
| CN114458584B (en) * | 2022-02-17 | 2024-01-19 | 西华大学 | Diaphragm with surface compressive stress and preparation method and application thereof |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |