CN202612037U - Compressor - Google Patents
Compressor Download PDFInfo
- Publication number
- CN202612037U CN202612037U CN 201220223332 CN201220223332U CN202612037U CN 202612037 U CN202612037 U CN 202612037U CN 201220223332 CN201220223332 CN 201220223332 CN 201220223332 U CN201220223332 U CN 201220223332U CN 202612037 U CN202612037 U CN 202612037U
- Authority
- CN
- China
- Prior art keywords
- crankshaft
- compressor
- thrust plate
- thrust
- nitriding treatment
- 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
Links
- 238000005121 nitriding Methods 0.000 claims abstract description 26
- 238000011282 treatment Methods 0.000 claims description 28
- 150000003839 salts Chemical class 0.000 claims description 9
- 239000003921 oil Substances 0.000 description 68
- 239000003507 refrigerant Substances 0.000 description 25
- 239000000314 lubricant Substances 0.000 description 21
- 230000007246 mechanism Effects 0.000 description 19
- 238000005507 spraying Methods 0.000 description 11
- 238000003860 storage Methods 0.000 description 11
- 238000003825 pressing Methods 0.000 description 10
- 239000003795 chemical substances by application Substances 0.000 description 7
- 238000005057 refrigeration Methods 0.000 description 7
- 239000004519 grease Substances 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 5
- 238000000576 coating method Methods 0.000 description 5
- 239000011148 porous material Substances 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- 239000005864 Sulphur Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000003475 lamination Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000004381 surface treatment Methods 0.000 description 3
- 229910000975 Carbon steel Inorganic materials 0.000 description 2
- 229910001141 Ductile iron Inorganic materials 0.000 description 2
- 230000003321 amplification Effects 0.000 description 2
- 239000010962 carbon steel Substances 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 description 2
- 229910052982 molybdenum disulfide Inorganic materials 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 229910000997 High-speed steel Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- CPSYWNLKRDURMG-UHFFFAOYSA-L hydron;manganese(2+);phosphate Chemical compound [Mn+2].OP([O-])([O-])=O CPSYWNLKRDURMG-UHFFFAOYSA-L 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005480 shot peening Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
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- Applications Or Details Of Rotary Compressors (AREA)
- Rotary Pumps (AREA)
Abstract
The utility model provides a compressor. A scroll compressor (101) is provided with a crank shaft (17) and a thrust plate (75). The thrust plate (75) supports the crank shaft (17) axially. The crank shaft (17) and the thrust plate (75) are subjected to nitriding.
Description
Technical field
The utility model relates to compressor.
Background technique
In the past, the compressor of the freeze cycle of formation aircondition etc. adopts the compressor with live axle and thrust bearing part, and live axle is connected with the motor of drive compression mechanism, and thrust bearing part is supporting driving shaft in the axial direction.
For example, the disclosed scroll compressor of patent documentation 1 (the TOHKEMY 2004-124780 communique) thrust bearing part that has the live axle that carbon steel that utilization do not quench forms and utilize the high speed steel that carried out quenching to form.Thus, the wearing and tearing of thrust bearing part have been suppressed.
In addition; The disclosed scroll compressor of patent documentation 2 (japanese kokai publication hei 7-35078 communique) has live axle and the surperficial thrust bearing part of having been implemented nitriding treatment that utilizes nodular cast iron to form, and thrust bearing part is formed with the surface layer that hardness is lower than live axle on nitride layer.Thus, the surface layer of thrust bearing part carries out break-in in operation process, reduced the thrust noise.
[existing technology document]
[patent documentation]
[patent documentation 1] TOHKEMY 2004-124780 communique
[patent documentation 2] japanese kokai publication hei 7-35078 communique
But because the maximization of compressor makes the weight increase of live axle, the upper space of motor and the pressure difference of lower space increase, the load that then imposes on the live axle of thrust bearing part increases.Therefore, according to the material of live axle and thrust bearing part, the slip surface of live axle and thrust bearing part is burnt, and might be easy to generate wearing and tearing at slip surface.
The model utility content
The purpose of the utility model is, a kind of compressor that can improve anti-burn property and wearability is provided.
The compressor of the first aspect of the utility model has live axle and thrust bearing division.Thrust bearing division is supporting driving shaft in the axial direction.Live axle and thrust bearing division have been implemented nitriding treatment.
In the compressor of first aspect, nitriding treatment has been implemented on the surface of live axle and thrust bearing division, thereby has higher hardness.Therefore, the compressor of first aspect can improve anti-burn property and wearability.
The compressor of the second aspect of the utility model is that live axle and thrust bearing division have been implemented salt Bath Nitriding Treatment according to the described compressor of first aspect.
The compressor of the third aspect of the utility model is that live axle and thrust bearing division have the hardness that differs from one another according to first aspect or the described compressor of second aspect.
In the compressor of the third aspect,, can further improve the anti-burn property and the wearability of parts with higher hardness through to giving difference of hardness between live axle and the thrust bearing division.
The model utility effect
The compressor of the first～third aspect of the utility model can improve anti-burn property and wearability.
The compressor of the third aspect of the utility model can further improve the anti-burn property and the wearability of live axle or thrust bearing division.
Description of drawings
Fig. 1 is the sectional arrangement drawing of scroll compressor of the mode of execution of the utility model.
Fig. 2 is the enlarged view of the slide part of crankshaft and thrust plate among Fig. 1.
Label declaration
17 crankshafts (live axle); 75 thrust plates (thrust bearing division); 101 scroll compressors (compressor).
Embodiment
Compressor for the mode of execution of the utility model describes with reference to accompanying drawing.The compressor of this mode of execution is the scroll compressor of high low pressure domeshape.Scroll compressor is the compressor that comes compressed refrigerant through the volume-variation that makes the space that is formed by two scroll elements with intermeshing scroll whirlpool tooth (lap).
(1) structure of compressor
Fig. 1 is the sectional arrangement drawing of the scroll compressor 101 of this mode of execution.Scroll compressor 101 mainly is made up of shell 10, compressing mechanism 15, support (housing) 23, drive motor 16, lower bearing 60, crankshaft 17, suction pipe 19 and spraying pipe 20.The effect that scroll compressor 101 performances are compressed refrigerant gas in the refrigerant circuit of the freeze cycle that makes refrigerant cycle repeatedly.Below, each constituting component of scroll compressor 101 is described.
(1-1) shell
Shell 10 is made up of following part: main part housing department 11 roughly cylindraceous; Be welded in the bowl-shape upper wall portions 12 of the upper end portion of main part housing department 11 airtightly; And the bowl-shape bottom wall portion 13 that is welded in the underpart of main part housing department 11 airtightly.Shell 10 utilizes the rigid element moulding, and under the situation of the inside of shell 10 and outside pressure, temperature variation, this rigid element is difficult for producing distortion and damaged.Shell 10 is provided as and makes the roughly cylindraceous axially along vertical direction of its main part housing department 11.
Take in compressing mechanism 15 in the inside of shell 10, be configured in compressing mechanism 15 below support 23, be configured in support 23 below drive motor 16 and extend the crankshaft 17 etc. of configuration along vertical direction.Suction pipe 19 and spraying pipe 20 are welded in the wall portion of shell 10 airtightly.
Be formed with the oil storage space 10a that is used for storing lubricating oil in the bottom of shell 10.Lubricant oil is used in the operation process of scroll compressor 101, to keep well the lubricity of the slide part of compressing mechanism 15 grades.
(1-2) compressing mechanism
Compressing mechanism 15 is incorporated in the inside of shell 10, and it attracts the refrigerant gas of low-temp low-pressure also to compress, and the refrigerant gas of ejection HTHP (below be called " compressed refrigerant ").Compressing mechanism 15 mainly is made up of fixed scroll member 24 and rotary vortex parts 26.
Fixed scroll member 24 has the 1st end plate 24a and uprightly is formed at the 1st whirlpool tooth 24b of the scrollwork shape (involute shape) of the 1st end plate 24a.Be formed with main inlet hole (not shown) and the auxiliary inlet hole (not shown) adjacent in fixed scroll member 24 with main inlet hole.Main inlet hole with suction pipe 19 with after the pressing chamber 40 stated be communicated with.Auxiliary inlet hole with after the low-voltage space S2 and pressing chamber 40 connections that state.And, be formed with spraying hole 41 at the central part of the 1st end plate 24a, be formed with the amplification recess 42 that is communicated with spraying hole 41 at the upper surface of the 1st end plate 24a.Amplification recess 42 is the spaces in the along continuous straight runs expansion of the upper surface depression setting of the 1st end plate 24a.Lid 44 utilizes bolt 44a to stop up the upper surface that the mode of amplifying recess 42 is fixed in fixed scroll member 24.Fixed scroll member 24 closely contacts through packing ring (not shown) with lid 44 and is sealed.Amplify recess 42 and covered, form the silence space 45 of the operating sound noise reduction that makes compressing mechanism 15 thus by lid 44.Be formed with in fixed scroll member 24 and be communicated with silence space 45 and at the 1st compressed refrigerant stream 46 of the lower surface opening of fixed scroll member 24.
Rotary vortex parts 26 has the 2nd end plate 26a and uprightly is formed at the 2nd whirlpool tooth 26b of the scrollwork shape (involute shape) of the 2nd end plate 26a.Lower surface central part at the 2nd end plate 26a is formed with upper end bearing 26c.Be formed with oil supply pore 63 at the 2nd end plate 26a.Oil supply pore 63 is with the spatial communication of the inboard of the upper surface peripheral part of the 2nd end plate 26a and upper end bearing 26c.
The 1st whirlpool tooth 24b and the 2nd whirlpool tooth 26b of fixed scroll member 24 and rotary vortex parts 26 mesh, and forming the space that is surrounded by the 1st end plate 24a, the 1st whirlpool tooth 24b, the 2nd end plate 26a and the 2nd whirlpool tooth 26b thus is pressing chamber 40.The volume of pressing chamber 40 changes according to the revolution motion of rotary vortex parts 26.
(1-3) support
Support 23 is disposed at the below of compressing mechanism 15, and its outer circumferential face is engaged in the internal surface of shell 10 airtightly.Thus, the inner space of shell 10 is divided into the low-voltage space S2 of top of high-pressure space S1 and support 23 of the below of support 23.Support 23 utilizes bolt etc. to fix, and carries fixed scroll member 24 thus, and through cross shaped joint 39 with fixed scroll member 24 clamping rotary vortex parts 26.Cross shaped joint 39 is the ring-shaped members that are used to prevent the spinning motion of rotary vortex parts 26.At the peripheral part of support 23, perforation vertically is formed with the 2nd compressed refrigerant stream 48.The 2nd compressed refrigerant stream 48 is communicated with the 1st compressed refrigerant stream 46 in the upper-end surface of support 23, is communicated with high-pressure space S1 through ejiction opening 49 in the lower end surface of support 23.
Upper surface depression at support 23 is provided with crank chamber S3.And, be formed with support through hole 31 at support 23.Support through hole 31 is from the bottom central part of crank chamber S3 until the lower end surface central part of support 23, vertically connect the space that support 23 forms.Below, the part that the part of support 23 promptly is formed with support through hole 31 is called upper bearing 32.And, be formed with drainback passage 23a with near high-pressure space S1 the internal surface of shell 10 and crank chamber S3 connection at support 23.
(1-4) drive motor
Drive motor 16 is incorporated in the inside of shell 10, is the brushless DC motor that is disposed at the below of support 23.Drive motor 16 mainly constitutes by the stator 51 of the internal surface that is fixed in shell 10 with the rotor 52 that rotates the inboard that is accommodated in stator 51 freely across the mode of air gap.
Stator 51 comprises that perhaps riveting lamination portion that the electromagnetic steel plate lamination is formed and the lead that is wound in lamination portion through welding is coil portion.On the outer circumferential face of stator 51, from the upper-end surface of stator 51 until the lower end surface, at the cutting part a plurality of unshakable in one's determination (not shown) that is being provided with through otch formation with upwards separating predetermined interval week.Cutting part unshakable in one's determination is formed on the motor cooling channel 55 of vertically extending between main part housing department 11 and the stator 51.
Rotor 52 is connected with the crankshaft that vertically connects its rotating center 17.Rotor 52 is connected with compressing mechanism 15 through crankshaft 17.
(1-5) lower bearing
(1-6) crankshaft
Crankshaft 17 has the 1st secondary oil supply path 62a, the 2nd secondary oil supply path 62b and the 3rd secondary oil supply path 62c that 61 branches come out from main oil supply path.The 1st secondary oil supply path 62a, the 2nd secondary oil supply path 62b and the 3rd secondary oil supply path 62c extend in the horizontal direction.The 1st secondary oil supply path 62a is in the sliding contact surface upper shed of crankshaft 17 with the upper end bearing 26c of rotary vortex parts 26.The 2nd secondary oil supply path 62b is in the sliding contact surface upper shed of crankshaft 17 with the upper bearing 32 of support 23.The 3rd secondary oil supply path 62c is in the sliding contact surface upper shed of crankshaft 17 with lower bearing 60.
(1-7) suction pipe
Suction pipe 19 is the pipes that are used for importing to compressing mechanism 15 from the outside of shell 10 refrigeration agent of refrigerant circuit.Suction pipe 19 embeds the upper wall portions 12 of shell 10 airtightly.Suction pipe 19 vertically connects low-voltage space S2, and its inner end embeds fixed scroll member 24 simultaneously.
(1-8) spraying pipe
Spraying pipe 20 is to be used for the pipe to the outside of shell 10 ejection compressed refrigerant from high-pressure space S1.Spraying pipe 20 embeds the main part housing department 11 of shell 10 airtightly.Spraying pipe 20 along continuous straight runs connect high-pressure space S1.The opening portion 20a that is positioned at the spraying pipe 20 of shell 10 be positioned at support 23 near.
(2) action of compressor
At first, the mobile of circuit refrigeration agent in the refrigerant circuit with scroll compressor 101 described.Then, scroll compressor 101 inner the mobile of lubricant oil are described.
(2-1) refrigeration agent flows
At first, drive motor 16 drives, rotor 52 rotations thus.Thus, the crankshaft 17 that is fixed in rotor 52 carries out the axle rotation.The axle of crankshaft 17 rotatablely moves and passes to rotary vortex parts 26 through upper end bearing 26c.The axle center of the upper end portion of crankshaft 17 is with respect to the axle center that rotatablely moves of axle of crankshaft 17 and off-centre.Utilize cross shaped joint 39 to prevent rotary vortex parts 26 rotations.Thus, rotary vortex parts 26 does not carry out rotation, but carries out revolution motion with respect to fixed scroll member 24.
The refrigeration agent of the low-temp low-pressure before being compressed from suction pipe 29 via main inlet hole, or attracted to the pressing chamber 40 of compressing mechanism 15 via auxiliary inlet hole from low-voltage space S2.Through the revolution motion of rotary vortex parts 26, pressing chamber 40 moves towards central part from the peripheral part of fixed scroll member 24 when slowly reducing volume.As a result, the refrigeration agent of pressing chamber 40 is compressed and becomes compressed refrigerant.Compressed refrigerant, via the 1st compressed refrigerant stream 46 and the 2nd compressed refrigerant stream 48, sprays to high-pressure space S1 from ejiction opening 49 to silence space 45 ejections from spraying hole 41 then.And compressed refrigerant descends in motor cooling channel 55, and arrives the high-pressure space S1 of drive motor 16 belows.And, compressed refrigerant make that it flows towards counter-rotating, and in another motor cooling channel 55 and air gap, rise.Finally, compressed refrigerant is ejected into the outside of scroll compressor 101 from spraying pipe 20.
(2-2) lubricant oil flows
At first, drive motor 16 drives, rotor 52 rotations thus.Thus, the crankshaft 17 that is fixed in rotor 52 carries out the axle rotation.Axle through crankshaft 17 rotatablely moves, and compressing mechanism 15 drives, and makes to high-pressure space S1 ejection compressed refrigerant, and the pressure of high-pressure space S1 rises.On the other hand, thrust bearing surface 24c through compressing mechanism 15 and oil supply pore 63 and the pressing chamber 40 of the compressing mechanism 15 that is communicated with grease chamber 83 is in the low-pressure state lower than high-pressure space S1.Therefore, in the main oil supply path 61 that is communicated with oil storage space 10a and grease chamber 83, produce pressure difference.Thus, the lubricant oil of oil storage space 10a rises in main oil supply path 61.
The lubricant oil that in main oil supply path 61, rises is diverted to the 3rd secondary oil supply path 62c, the 2nd secondary oil supply path 62b and the 1st secondary oil supply path 62a successively.The lubricant oil that in the 3rd secondary oil supply path 62c, flows through is lubricated the sliding contact surface of crankshaft 17 with lower bearing 60; Supply to high-pressure space S1 then and turn back among the oil storage space 10a, the lubricant oil that perhaps in the 3rd secondary oil supply path 62c, flows through is lubricated and turns back among the oil storage space 10a the thrust slip surface between crankshaft 17 and the thrust plate 75.The lubricant oil that in the 2nd secondary oil supply path 62b, flows through is lubricated the sliding contact surface of crankshaft 17 with the upper bearing 32 of support 23, supplies to then among high-pressure space S1 and the crank chamber S3.The lubricant oil that supplies among the high-pressure space S1 turns back among the oil storage space 10a.The lubricant oil that supplies among the crank chamber S3 supplies among the high-pressure space S1 via the drainback passage 23a of support 23, and turns back among the oil storage space 10a.The lubricant oil that in the 1st secondary oil supply path 62a, flows through is lubricated the sliding contact surface of crankshaft 17 with the upper end bearing 26c of rotary vortex parts 26, supplies to then among the crank chamber S3.The lubricant oil that supplies among the crank chamber S3 supplies among the high-pressure space S1 via drainback passage 23a as stated, and turns back among the oil storage space 10a.
On the other hand, in main oil supply path 61, rise and the lubricant oil that arrives grease chamber 83 supplies to the thrust bearing surface 24c of compressing mechanism 15 via oil supply pore 63.Lubricant oil after thrust bearing surface 24c is lubricated flows into pressing chamber 40.At this moment, the lubricant oil of HTHP will be arranged in the refrigeration agent heating before being compressed of pressing chamber 40, and sneak in the refrigeration agent with the state of tiny oil droplets.The lubricant oil that is blended in the compressed refrigerant sprays to high-pressure space S1 through the path identical with compressed refrigerant.And lubricant oil descends in motor cooling channel 55 with compressed refrigerant, and a part is impacted oil separation plate 73 then.The lubricant oil that is attached to oil separation plate 73 falls in high-pressure space S1, and turns back among the oil storage space 10a.
(3) characteristic of compressor
As shown in Figure 2, the lower end surface of crankshaft 17 contacts with the upper surface of thrust plate 75.When crankshaft 17 carried out the axle rotation, the lower end surface of crankshaft 17 contacted with the upper surface of thrust plate 75.In this mode of execution, crankshaft 17 has been implemented salt Bath Nitriding Treatment with thrust plate 75 owing to surperficial, thereby has higher hardness.Therefore, suppressed the burn of crankshaft 17 with the sliding contact surface of thrust plate 75, the wearing and tearing of crankshaft 17 and thrust plate 75 reduce.Therefore, the scroll compressor 101 of this mode of execution can improve anti-burn property and wearability.
In addition,, make that the weight of crankshaft 17 increases, the high-pressure space S1 of drive motor 16 tops increases with the pressure difference of the high-pressure space S1 of drive motor 16 belows, then impose on the load increase of the crankshaft 17 of thrust plate 75 because scroll compressor 101 maximizes.Therefore, the wearing and tearing of crankshaft 17 have been promoted with burn, crankshaft 17 and the thrust plate 75 of the sliding contact surface of thrust plate 75.And lubricant oil is difficult for supplying to the sliding contact surface of crankshaft 17 and thrust plate 75.In this mode of execution, salt Bath Nitriding Treatment is implemented on the surface of crankshaft 17 and thrust plate 75 improved hardness, suppress the generation of these unfavorable conditions that the maximization by scroll compressor 101 causes thus.
(4) variation
Abovely be illustrated, but the concrete structure of the utility model can change in the scope of the aim that does not break away from the utility model with reference to the mode of execution of accompanying drawing to the utility model.Below, the variation of the compressor of the mode of execution that can be applicable to the utility model is described.
(4-1) variation A
In mode of execution; Compressor has adopted the scroll compressor 101 with the compressing mechanism 15 that is made up of fixed scroll member 24 and rotary vortex parts 26; But, then also can adopt the compressor of compressing mechanism with other types so long as have crankshaft and support the compressor of the thrust bearing part of crankshaft in the axial direction.For example, also can adopt revolving compressor.
(4-2) variation B
In mode of execution, salt Bath Nitriding Treatment has been implemented on the surface of crankshaft 17 and thrust plate 75, but also can carry out other nitriding treatment.For example, also can soak sulphur nitriding treatment and ionic nitrizing treatment to the surface of crankshaft 17 and thrust plate 75.
(4-3) variation C
In mode of execution, salt Bath Nitriding Treatment has been implemented on the surface of crankshaft 17 and thrust plate 75, and in variation B, for example sulphur nitriding treatment or ionic nitrizing treatment have been implemented to soak in the surface of crankshaft 17 and thrust plate 75.Through these nitriding treatment, crankshaft 17 has higher hardness with thrust plate 75.And, also can make nitriding treatment to the surface of crankshaft 17 and thrust plate 75 with the hardness that differs from one another.Through to giving difference of hardness between crankshaft 17 and the thrust plate 75, can further improve the anti-burn property and the wearability of parts with higher hardness.
(4-4) variation D
In mode of execution, salt Bath Nitriding Treatment has been implemented on the surface of crankshaft 17 and thrust plate 75, and in variation B, for example sulphur nitriding treatment or ionic nitrizing treatment have been implemented to soak in the surface of crankshaft 17 and thrust plate 75.But, can also carry out various surface treatments to crankshaft 17 and the thrust plate 75 of having been implemented nitriding treatment.
For example, can carry out the processing of nick hole to the surface of the crankshaft 17 of having been implemented nitriding treatment and thrust plate 75.Through nick hole processing, be formed with a large amount of trickle concavo-convex on the surface of crankshaft 17 and thrust plate 75.Thus, lubricant oil is maintained in surface concavo-convex, thereby has suppressed the oil-break of crankshaft 17 and the sliding contact surface of thrust plate 75, and anti-burn property and wearability further improve.
In addition, also can carry out the processing of molybdenum disulfide shot-peening to the surface of the crankshaft 17 of having been implemented nitriding treatment and thrust plate 75.Thus, crankshaft 17 reduces with the slip resistance of thrust plate 75, and anti-burn property and wearability further improve.
In addition, also can carry out that molybdenum disulfide applies and solid lubrication such as manganese phosphate coating are handled to the surface of the crankshaft 17 of having been implemented nitriding treatment and thrust plate 75.Thus, the lubricity of crankshaft 17 and thrust plate 75 improves, and anti-burn property and wearability further improve.
In addition, also can carry out other surface treatment to the crankshaft 17 of having been implemented nitriding treatment and the surface of thrust plate 75.In this case, other surface treatment refers to CrN coating, TiN coating, DLC coating and DLC-Si coating etc.
Utilizability on the industry
The compressor of the utility model can improve anti-burn property and wearability.
Claims (3)
1. a compressor (101) is characterized in that, this compressor has:
Implemented the live axle (17) of nitriding treatment; And
Support said live axle in the axial direction and also implemented the thrust bearing division (75) of nitriding treatment.
2. compressor according to claim 1, wherein, said live axle and said thrust bearing division have been implemented salt Bath Nitriding Treatment.
3. compressor according to claim 1 and 2, wherein, said live axle and said thrust bearing division have the hardness that differs from one another.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220223332 CN202612037U (en) | 2012-05-17 | 2012-05-17 | Compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220223332 CN202612037U (en) | 2012-05-17 | 2012-05-17 | Compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202612037U true CN202612037U (en) | 2012-12-19 |
Family
ID=47345743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220223332 Expired - Fee Related CN202612037U (en) | 2012-05-17 | 2012-05-17 | Compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202612037U (en) |
-
2012
- 2012-05-17 CN CN 201220223332 patent/CN202612037U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121219 Termination date: 20200517 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |