CN206429409U - Compressor piston and compressor - Google Patents
Compressor piston and compressor Download PDFInfo
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- CN206429409U CN206429409U CN201720097013.4U CN201720097013U CN206429409U CN 206429409 U CN206429409 U CN 206429409U CN 201720097013 U CN201720097013 U CN 201720097013U CN 206429409 U CN206429409 U CN 206429409U
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Abstract
The utility model discloses a kind of compressor piston and compressor, compressor piston includes：Piston only；The piston bush of self-lubricating, the piston bush is at least assemblied on the side in the radially inner side and radial outside of the piston only.According to compressor piston of the present utility model, possesses the characteristic of self-lubricating in itself using piston bush, the decisive role of refrigeration lubrication oil antifriction antiwear when compressor piston is as friction pair can be reduced, and can be reduced using the lighter advantage of piston bush quality of materials into power loss.
Description
Technical field
The utility model is related to Compressor Technology field, more particularly to a kind of compressor piston and is lived with the compressor
The compressor of plug.
Background technology
In correlation technique, rotary compressor typically makes piston using metal materials such as cast irons, in lubricating oil (refrigerator
Oil) being capable of operational excellence under conditions of sufficient lubrication.However, often quality itself is larger, it is necessary to which certain enters power for metallic piston
It is driven to run, and metal material does not have self-lubricating effect in itself, causes under the working environment of oil-free or few oil, rotation
The overall performance of rotary compressor is not good.Generally it is more than by the rotary piston of rotary compressor is operationally withstood forces
General reciprocating compressor, so even under the working environment that refrigerator oil is present, being revolved under conditions of low-speed heave-load
The phenomenons such as piston wear is serious may also occur in rotary compressor.
Utility model content
The utility model is intended at least solve one of technical problem in correlation technique to a certain extent.Therefore, this reality
With a kind of compressor piston of new proposition, the compressor piston can effectively reduce the abrasion of piston only.
The utility model further proposes a kind of compressor.
According to compressor piston of the present utility model, including：Piston only；The piston bush of self-lubricating, the piston bush is extremely
It is assemblied in less on the side in the radially inner side and radial outside of the piston only.
According to compressor piston of the present utility model, possess the characteristic of self-lubricating in itself using piston bush, can reduce cold
Freeze the decisive role of lubricating oil antifriction antiwear when compressor piston is as friction pair, and piston cover material matter can be utilized
The lighter advantage of amount, is reduced into power loss, while for having oil or oil-free working environment.
In addition, can also have following technical characteristic according to compressor piston of the present utility model：
In some examples of the present utility model, the piston bush is piston inner sleeve, and the piston inner sleeve is assemblied in described
The radially inner side of piston only, the piston inner sleeve is along the axially extending of the piston only.
In some examples of the present utility model, the axial length of the piston inner sleeve is less than or equal to the piston only
Axial length.
In some examples of the present utility model, the axial length of the piston inner sleeve is less than the axial direction of the piston only
Length, each the distance of the axial end portion of the piston inner sleeve to the axial end portion of the piston only in the same direction is identical.
In some examples of the present utility model, the radial thickness of the piston inner sleeve is between 0.5mm-3mm.
In some examples of the present utility model, oil groove is provided with the inner surface of the piston inner sleeve.
In some examples of the present utility model, the oil groove is substantially twist.
In some examples of the present utility model, the piston bush is piston jacket, and the piston jacket is assemblied in described
The radial outside of piston only, the piston jacket is axially extending along the piston only.
In some examples of the present utility model, the radial thickness of the piston jacket is between 0.5mm-6mm.
In some examples of the present utility model, the piston bush is graphite piston set, polyester piston bush or PTFE coatings
Piston bush.
In some examples of the present utility model, it is interference fitted between the piston bush and the piston only.
In some examples of the present utility model, phase interworking is respectively arranged between the piston bush and the piston only
The tapered guide surface of conjunction.
According to compressor of the present utility model, including described compressor piston.
Brief description of the drawings
Fig. 1-Fig. 5 is respectively the sectional view according to the not compressor piston of be the same as Example of the utility model five.
Reference：
Compressor piston 10；
Piston only 1；Piston inner sleeve 2；Piston jacket 3；Tapered guide surface 4；Oil groove 5.
Embodiment
Embodiment of the present utility model is described below in detail, the example of the embodiment is shown in the drawings.Below by
The embodiment being described with reference to the drawings is exemplary, it is intended to for explaining the utility model, and it is not intended that new to this practicality
The limitation of type.
The compressor piston 10 according to the utility model embodiment is described in detail below with reference to Fig. 1-Fig. 5, the compressor is lived
Plug 10 can be applied within the compressor, such as rotary compressor.
As Figure 1-Figure 5, it can be included according to the compressor piston 10 of the utility model embodiment：The He of piston only 1
The piston bush of self-lubricating, piston only 1 can be made up of metal material, and the footpath that piston bush is at least assemblied in piston only 1 is inside
On side in side and radial outside.The piston bush of self-lubricating refers to that the piston bush can be realized with the lubrication effect of itself
Really.
That is, as depicted in figs. 1 and 2, piston bush can be one, and a piston bush coordinates in piston only 1
Radially inner side, the piston bush can be piston inner sleeve 2, so when the compressor piston 10 is applied in compressor, in piston
Set 2 can be engaged with the eccentric part on the bent axle of compressor, so that piston inner sleeve 2 can play a part of carrying, and also it is living
Plug inner sleeve 2 can avoid the direct contact and abrasion of piston only 1 and eccentric part, and can so ensure compressor piston 10 can
By property, the service life of compressor piston 10 can be extended.
Fit system and type between piston inner sleeve 2 and piston only 1 have a variety of, with reference to Fig. 1 and Fig. 2 for living
The arrangement form of plug inner sleeve 2 is described in detail.
As depicted in figs. 1 and 2, piston inner sleeve 2 is along the axially extending of piston only 1, and such piston inner sleeve 2 can be with maximum limit
Eccentric part and piston only 1 are spaced apart degree, and can be ensured between piston inner sleeve 2 and piston only 1 with sufficiently large
Contact area, it is ensured that cooperation reliability between the two.
As shown in figure 1, the axial length of piston inner sleeve 2 can be less than the axial length of piston only 1, it can so reduce
The axial dimension of piston inner sleeve 2, can reduce the cooperation difficulty between piston inner sleeve 2 and piston only 1, can reduce compressor
Cooperation difficulty between piston 10 and the eccentric part of bent axle.
Preferably, the distance of the axial end portion of each piston inner sleeve 2 to the axial end portion of piston only 1 in the same direction is identical.
With reference to Fig. 1 illustratively, as shown in figure 1, the axial left part of piston inner sleeve 2 to the axial left part of piston only 1
Distance is d1, and the distance of axial right-hand member to the axial end portion of piston only 1 of piston inner sleeve 2 is d2, wherein d1=d2.In satisfaction
State the structural reliability of compressor piston 10 of condition preferably, and axially two ends of piston inner sleeve 2 and piston only 1 by
Power situation is basically identical, so as to be conducive to the eccentric part of piston inner sleeve 2 and bent axle to coordinate, can lift the assembling of compressor
Reliability.
As shown in Fig. 2 the axial length of piston inner sleeve 2 can be equal to the axial length of piston only 1.Thus, it is so living
The contact area filled between inner sleeve 2 and piston only 1 is maximum, so as to lift matching somebody with somebody between piston inner sleeve 2 and piston only 1
Reliability is closed, furthermore it is also possible to which so that piston inner sleeve 2 and eccentric part have enough cooperation areas, compressor can be lifted
Assembly reliability.
Wherein, alternatively, as depicted in figs. 1 and 2, the radial thickness d3 of piston inner sleeve 2 can be between 0.5mm-3mm.
In other words, 0.5mm ＜ d3 ＜ 3mm.The radial thickness of piston inner sleeve 2 for meeting above range is suitable, so that compressor
The radial thickness of piston 10 is suitable, it is ensured that the structural reliability of compressor piston 10, it is possible to prevente effectively from the mill of piston only 1
Damage.
It should be noted that piston inner sleeve 2 can have the effect of self-lubricating.
Further, as shown in figure 5, oil groove 5 can be provided with the inner surface of piston inner sleeve 2.It can so to live
The lubrication for filling in inner sleeve 2 is more abundant, and lubricating oil can lubricate the surface between piston inner sleeve 2 and eccentric part, and lubricating oil can be with
Lubricate the surface between piston inner sleeve 2 and piston only 1.
Preferably, as shown in figure 5, oil groove 5 can substantially twist.It is understood that spiral oil groove 5 can be with
Advantageously in the flowing of lubricating oil, the lubricating oil effect of lubricating oil can be lifted.The abrasion of compressor piston 10 can be reduced.
Or, piston bush can be one, and a piston bush coordinates the radial outside in piston only 1, and the piston bush can
Think piston jacket 3, so when the compressor piston 10 is applied in compressor, the cunning that piston jacket 3 can be with compressor
Piece, which is mutually only supported, to be coordinated, and piston jacket 3 can play sealed effect, and piston jacket 3 can reduce piston only 1 and sliding
The abrasion of piece, can extend the service life of piston only 1 and slide plate.
It should be noted that piston jacket 3 can have the effect of self-lubricating.
Piston jacket 3 can be along the axially extending of piston only 1.The axial length of piston jacket 3 can be equal to piston sheet
The axial length of body 1.Thus, contact area between such piston jacket 3 and piston only 1 is maximum, so as to lift work
The cooperation reliability between 3 and piston only 1 is covered beyond the Great Wall.
Alternatively, the radial thickness of piston jacket 3 can be between 0.5mm-6mm with d4.In other words, 0.5mm ＜ d4
＜ 6mm.The radial thickness of piston jacket 3 for meeting above range is suitable, so that the radial thickness of compressor piston 10 is suitable
Preferably, it is ensured that the structural reliability of compressor piston 10, it is possible to reduce the abrasion of slide plate and piston only 1.
Or, as shown in Figure 3-Figure 5, piston bush is two, and two piston bush are respectively piston inner sleeve 2 and piston jacket 3,
Piston inner sleeve 2 coordinates the radially inner side in piston only 1, and piston jacket 3 coordinates the radial outside in piston only 1.Herein, need
It is noted that piston inner sleeve 2 can only arrange one and the piston bush is identical for the structure of piston inner sleeve 2 with above-mentioned, it is living
Set 3 can only arrange one and the piston bush is identical for the structure of piston jacket 3 with above-mentioned beyond the Great Wall.
Some general character embodiments in compressor piston 10 are explained again below.
As shown in Figure 4 and Figure 5, the tapered guide surface 4 of mutual cooperation is respectively arranged between piston bush and piston only 1.
Herein, piston bush can be piston inner sleeve 2, or piston jacket 3., can by setting the tapered guide surface 4 cooperated
In order to the cooperation of two components, guide effect can be played when two components coordinate, compressor can be improved
The efficiency of assembling of piston 10.
Certainly, the utility model is not limited to this, as shown in figure 3, the contact surface between piston bush and piston only 1 is also
It can be respectively ring surface, be simple to manufacture between such piston bush and piston only 1, manufacturing cost is low.
It is interference fitted between piston bush and piston only 1.Piston bush can be piston inner sleeve 2, or piston jacket
3.By interference fit, it can avoid when being heated because thermal coefficient of expansion difference causes the separation of piston bush and piston only 1,
It can make it that shape coordinates reliable between piston bush and piston only 1.
Alternatively, piston bush can be graphite piston set, polyester piston bush or PTFE
(Polytetrafluoroethylene- polytetrafluoroethylene (PTFE)) coating piston bush.Piston bush can be piston inner sleeve 2, or
Piston jacket 3.The piston bush that above-mentioned material is made can have the effect of self-lubricating, can lubricate matched part (example
Such as eccentric part, slide plate).In addition, the piston bush that above-mentioned material is made can also reduce compressor piston 10 at least to some extent
Weight, it is possible to reduce enter power loss.
Thus, according to the compressor piston 10 of the utility model embodiment, possesses the spy of self-lubricating in itself using piston bush
Property, the decisive role of refrigeration lubrication oil antifriction antiwear when compressor piston 10 is as friction pair can be reduced, and can be with
Using the lighter advantage of piston bush quality of materials, reduce into power loss, while for having oil or oil-free working environment.
According to the compressor piston 10 of the compressor of the utility model embodiment, including above-described embodiment.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means to combine specific features, structure, material or the spy that the embodiment or example are described
Point is contained at least one embodiment of the present utility model or example.In this manual, to the schematic table of above-mentioned term
State and be necessarily directed to identical embodiment or example.Moreover, specific features, structure, material or the feature of description can be with
Combined in an appropriate manner in any one or more embodiments or example.In addition, in the case of not conflicting, this area
Technical staff the not be the same as Example or the feature of example and non-be the same as Example or example described in this specification can be entered
Row is combined and combined.
Although embodiment of the present utility model has been shown and described above, it is to be understood that above-described embodiment is
Exemplary, it is impossible to it is interpreted as to limitation of the present utility model, one of ordinary skill in the art is in scope of the present utility model
It is interior above-described embodiment to be changed, changed, replaced and modification.
Claims (13)
1. a kind of compressor piston, it is characterised in that including：
Piston only；
The piston bush of self-lubricating, the piston bush is at least assemblied in one in the radially inner side and radial outside of the piston only
On side.
2. compressor piston according to claim 1, it is characterised in that the piston bush is piston inner sleeve, the piston
Inner sleeve is assemblied in the radially inner side of the piston only, and the piston inner sleeve is along the axially extending of the piston only.
3. compressor piston according to claim 2, it is characterised in that the axial length of the piston inner sleeve is less than or equal to
The axial length of the piston only.
4. compressor piston according to claim 3, it is characterised in that the axial length of the piston inner sleeve is less than described
The axial length of piston only, the axial end portion of each piston inner sleeve to the axial end portion of the piston only in the same direction
Apart from identical.
5. compressor piston according to claim 2, it is characterised in that the radial thickness of the piston inner sleeve is in 0.5mm-
Between 3mm.
6. compressor piston according to claim 2, it is characterised in that be provided with oil on the inner surface of the piston inner sleeve
Groove.
7. compressor piston according to claim 6, it is characterised in that the oil groove is substantially twist.
8. compressor piston according to claim 1, it is characterised in that the piston bush is piston jacket, the piston
Overcoat is assemblied in the radial outside of the piston only, and the piston jacket is axially extending along the piston only.
9. compressor piston according to claim 8, it is characterised in that the radial thickness of the piston jacket is in 0.5mm-
Between 6mm.
10. the compressor piston according to any one of claim 1-9, it is characterised in that the piston bush is lived for graphite
Plug sleeve, polyester piston bush or PTFE coating piston bush.
11. the compressor piston according to any one of claim 1-9, it is characterised in that the piston bush and the work
Fill in interference fit between body.
12. the compressor piston according to any one of claim 1-9, it is characterised in that the piston bush and the work
The tapered guide surface of mutual cooperation is respectively arranged between plug body.
13. a kind of compressor, it is characterised in that including the compressor piston according to any one of claim 1-12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720097013.4U CN206429409U (en) | 2017-01-24 | 2017-01-24 | Compressor piston and compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720097013.4U CN206429409U (en) | 2017-01-24 | 2017-01-24 | Compressor piston and compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206429409U true CN206429409U (en) | 2017-08-22 |
Family
ID=59590950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720097013.4U Active CN206429409U (en) | 2017-01-24 | 2017-01-24 | Compressor piston and compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206429409U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107061289A (en) * | 2017-01-24 | 2017-08-18 | 广东美芝制冷设备有限公司 | Compressor piston and compressor |
-
2017
- 2017-01-24 CN CN201720097013.4U patent/CN206429409U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107061289A (en) * | 2017-01-24 | 2017-08-18 | 广东美芝制冷设备有限公司 | Compressor piston and compressor |
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