CN203809294U - Screw compressor and air conditioning unit with same - Google Patents
Screw compressor and air conditioning unit with same Download PDFInfo
- Publication number
- CN203809294U CN203809294U CN201420109313.6U CN201420109313U CN203809294U CN 203809294 U CN203809294 U CN 203809294U CN 201420109313 U CN201420109313 U CN 201420109313U CN 203809294 U CN203809294 U CN 203809294U
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- CN
- China
- Prior art keywords
- hole
- helical
- lobe compressor
- chamber
- 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.)
- Expired - Lifetime
Links
- 238000004378 air conditioning Methods 0.000 title claims abstract description 9
- 239000010687 lubricating oil Substances 0.000 abstract 1
- 238000007789 sealing Methods 0.000 abstract 1
- 238000005538 encapsulation Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Compressor (AREA)
Abstract
The utility model discloses a screw compressor and an air conditioning unit with the same. The screw compressor comprises a machine body and a position measuring mechanism, wherein a sliding valve chamber and a pressure chamber are formed in the machine body; the position measuring mechanism comprises a first through hole and a second through hole which are formed in the radial direction of the sliding valve chamber; the first end of the first through hole is communicated with the sliding valve chamber; the first end of the second through hole is communicated with the outer part of the machine body; separating parts for separating the second end of the first through hole and the second end of the second through hole from the pressure chamber are arranged on the machine body. Because the separating parts for separating the first through hole and the second through hole from the pressure chamber are arranged on the machine body of the screw compressor, and the separating parts avoid the contact of the position measuring mechanism and the pressure chamber, the purpose of preventing lubricating oil from leaking is achieved. Relative to the scheme that the position measuring mechanism adopts sealing, the scheme provided by the utility model is simpler, high in reliability and low in cost.
Description
Technical field
The utility model relates to compressor, particularly relates to a kind of helical-lobe compressor and has the air-conditioning unit of this helical-lobe compressor.
Background technique
Guiding valve is a kind of structural element that is used for regulating displacement in helical-lobe compressor.Guiding valve is loaded in piston chamber and is positioned at the intersection point place of yin, yang rotor two circles, can upwards move around at cylinder axis, along with the rotation of yin, yang rotor, the pressure of compressed gas improves gradually along the direction of rotor, along with the movement of guiding valve, change the compressible useful space of medium, thereby reached the object of capacity regulating.
In order accurately to know the position of guiding valve, existing helical-lobe compressor is conventionally with location mechanism.As described in Figure 1, a kind of location of the prior art mechanism comprises and is arranged at body 10 piston chamber 11 footpaths the first through hole 13 and the second through hole 14 upwards, in the first through hole 13 and the second through hole 14, be equipped with slidably bearing pin 30, Returnning spring 40 is housed on bearing pin 30, one end of bearing pin 30 coordinates with the inclined-plane 21 being arranged on guiding valve 20, and the other end is connected with position transducer 50.In the time that guiding valve 20 moves around in piston chamber 11, drive bearing pin 30 to move.Position transducer 50 detects the position of guiding valve 20 by judging the displacement amount of bearing pin 30.But because the first through hole 13, the second through hole 14 are communicated with chamber 12 with pressure, in helical-lobe compressor running, can often there is oil impregnate phenomenon in assembling place of location mechanism and body.For head it off, the measure conventionally adopting is to use encapsulation scheme at place of location mechanism, but encapsulation scheme poor reliability, cost are high.
Summary of the invention
For above-mentioned prior art present situation, technical problem to be solved in the utility model is, a kind of helical-lobe compressor is provided and has the air-conditioning unit of this helical-lobe compressor, it can prevent the oil impregnate phenomenon that location mechanism and body assembling place occur, and reliability is high, cost is low.
In order to solve the problems of the technologies described above, a kind of helical-lobe compressor provided by the utility model, comprise body and location mechanism, on described body, be provided with piston chamber and chamber with pressure, described location mechanism comprises and is arranged at described piston chamber footpath the first through hole and the second through hole upwards, the first end of described the first through hole communicates with described piston chamber, the first end of described the second through hole communicates with described engine body exterior, is provided with the isolating part that the second end of the second end of described the first through hole and described the second through hole and described chamber with pressure are separated on described body.
Therein in an embodiment, described isolating part is arranged between the second end of described the first through hole and the second end of described the second through hole, and on described isolating part, is provided with the third through-hole that is communicated with the second end of described the first through hole and the second end of described the second through hole.
Therein in an embodiment, the equal diameters of described third through-hole and described the second through hole, the diameter of described third through-hole is greater than the diameter of described the first through hole.
In an embodiment, described isolating part and described body are structure as a whole therein.
A kind of air-conditioning unit provided by the utility model, comprises helical-lobe compressor, and described helical-lobe compressor is above-mentioned helical-lobe compressor.
Compared with prior art, helical-lobe compressor of the present utility model and there is the air-conditioning unit of this helical-lobe compressor, on helical-lobe compressor body, be provided with the isolating part that the first through hole and the second through hole and chamber with pressure are separated, avoid contacting of location mechanism and chamber with pressure by isolating part, thereby reach the object that prevents oil seepage.With respect to using encapsulation scheme at place of location mechanism, scheme of the present utility model is more simple, reliability is high, cost is low.
The beneficial effect that the utility model additional technical feature has will describe in this specification embodiment part.
Brief description of the drawings
Fig. 1 is the sectional structure schematic diagram of helical-lobe compressor of the prior art;
Fig. 2 is the sectional structure schematic diagram of the helical-lobe compressor in one of them embodiment of the utility model.
Embodiment
Also the utility model is elaborated below with reference to accompanying drawing in conjunction with the embodiments.It should be noted that, in the situation that not conflicting, the feature in following embodiment and embodiment can combine mutually.
Figure 2 shows that the sectional structure schematic diagram of the helical-lobe compressor in one of them embodiment of the utility model.As shown in the figure, helical-lobe compressor comprises body 60 and location mechanism, is provided with piston chamber 61 and chamber with pressure 62 on described body 60, in described piston chamber 61, guiding valve 20 is installed.Described location mechanism comprises and is arranged at described piston chamber 61 footpaths the first through hole 63 and the second through hole 64 upwards, the first end of described the first through hole 63 communicates with described piston chamber 61, the first end of described the second through hole 64 and described body 60 exterior, the bearing pin 30 of location mechanism is loaded in the first through hole 63 and the second through hole 64, Returnning spring 40 is housed on bearing pin 30, one end of bearing pin 30 coordinates with the inclined-plane 21 being arranged on guiding valve 20, and the other end is connected with position transducer 50.On described body 60, be provided with the isolating part 65 that the second end of the second end of described the first through hole 63 and described the second through hole 64 and described chamber with pressure 62 are separated.Avoid contacting of location mechanism and chamber 62 with pressure by isolating part 65, thereby reach the object that prevents oil seepage.With respect to using encapsulation scheme at place of location mechanism, scheme of the present utility model is more simple, reliable and cost is low.
Preferably, described isolating part 65 is arranged between the second end of described the first through hole 63 and the second end of described the second through hole 64, and on described isolating part 65, is provided with the third through-hole 66 that is communicated with the second end of described the first through hole 63 and the second end of described the second through hole 64.Isolating part 65 adopts this kind of structure, body 60 is changed little, does not affect the reliability of compressor operating.Further, the equal diameters of described third through-hole 66 and described the second through hole 64, the diameter of described third through-hole 66 is greater than the diameter of described the first through hole 63.
In order to reduce costs, described isolating part 65 and described body 60 are structure as a whole, and so only need on casting die, make less change, and without increasing other component or easily damaged parts, implementation is simple.
The utility model also provides a kind of air-conditioning unit, comprises the helical-lobe compressor in above-described embodiment.
The above embodiment has only expressed several mode of execution of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.
Claims (5)
1. a helical-lobe compressor, comprise body and location mechanism, on described body, be provided with piston chamber and chamber with pressure, described location mechanism comprises and is arranged at described piston chamber footpath the first through hole and the second through hole upwards, the first end of described the first through hole communicates with described piston chamber, the first end of described the second through hole communicates with described engine body exterior, it is characterized in that, on described body, be provided with the isolating part that the second end of the second end of described the first through hole and described the second through hole and described chamber with pressure are separated.
2. helical-lobe compressor according to claim 1, it is characterized in that, described isolating part is arranged between the second end of described the first through hole and the second end of described the second through hole, and on described isolating part, is provided with the third through-hole that is communicated with the second end of described the first through hole and the second end of described the second through hole.
3. helical-lobe compressor according to claim 2, is characterized in that, the equal diameters of described third through-hole and described the second through hole, and the diameter of described third through-hole is greater than the diameter of described the first through hole.
4. according to the helical-lobe compressor described in any one in claims 1 to 3, it is characterized in that, described isolating part and described body are structure as a whole.
5. an air-conditioning unit, comprises helical-lobe compressor, it is characterized in that, described helical-lobe compressor is according to the helical-lobe compressor described in any one in claim 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420109313.6U CN203809294U (en) | 2014-03-11 | 2014-03-11 | Screw compressor and air conditioning unit with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420109313.6U CN203809294U (en) | 2014-03-11 | 2014-03-11 | Screw compressor and air conditioning unit with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203809294U true CN203809294U (en) | 2014-09-03 |
Family
ID=51448052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420109313.6U Expired - Lifetime CN203809294U (en) | 2014-03-11 | 2014-03-11 | Screw compressor and air conditioning unit with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203809294U (en) |
-
2014
- 2014-03-11 CN CN201420109313.6U patent/CN203809294U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140903 |
|
| CX01 | Expiry of patent term |