CN209041116U - Screw air compressor - Google Patents
Screw air compressor Download PDFInfo
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- CN209041116U CN209041116U CN201821980703.5U CN201821980703U CN209041116U CN 209041116 U CN209041116 U CN 209041116U CN 201821980703 U CN201821980703 U CN 201821980703U CN 209041116 U CN209041116 U CN 209041116U
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Abstract
The utility model discloses a kind of screw air compressors, including shell, trunnion bearing lubrication branch and the rear end cap for blocking shell end, the screw rod cavity for accommodating female rotor and male rotor is equipped in shell, shell is equipped with oil inlet pipe and oil inlet interface is connected to oil inlet pipe, and cools down the male rotor oil inlet branch and female rotor oil inlet branch of male rotor and female rotor respectively.Trunnion bearing lubrication branch is connect with space where oil inlet pipe and main shaft journal bearing, and is used for lubricating spindle journal bearing.Space is connected to by principal axis lubrication oil return branch with screw rod cavity where main shaft journal bearing, and screw rod cavity is connected to the exhaust outlet on shell.By setting trunnion bearing lubrication branch, male rotor oil inlet branch and female rotor oil inlet branch, the cooling path of oil liquid is effectively extended, and then reduces screw air compressor bulk temperature, therefore, the cooling performance of screw air compressor provided by the present application improves.
Description
Technical field
The utility model relates to air compressor machine cooling oil path technical field, in particular to a kind of screw air compressor.
Background technique
Screw air compressor is pre- complete configuration air screw compression assembly, and built-in cooling system carries out cooling dress
It sets.
Screw air compressor includes shell and the end cap for blocking shell, and male rotor is wherein equipped in shell and is engaged with male rotor
Female rotor, male rotor and female rotor be located in the screw rod cavity of shell, is turned by cooling oil path to sun when cooling system works
Exhaust outlet discharge after son and female rotor are cooling by being arranged on shell.
However, screw air compressor cooling point is less, oil return distance since cooling system only turns cooling to male rotor and yin
It is short, lead to not effectively realize that screw air compressor is cooling.
Therefore, how to extend screw air compressor cooling performance, be those skilled in the art's technical problem urgently to be resolved.
Utility model content
The purpose of the utility model is to provide a kind of screw air compressor, the cooling performance of the screw air compressor is improved.
To achieve the above object, the utility model provides a kind of screw air compressor, including shell and the closure shell ends
The rear end cap in portion, the interior screw rod cavity being equipped with for accommodating female rotor and male rotor of the shell, the shell are equipped with oil inlet
Pipeline and oil inlet interface are connected to the oil inlet pipe, and cool down the male rotor oil inlet of the male rotor and the female rotor respectively
Branch and female rotor oil inlet branch further include connecting with space where the oil inlet pipe and main shaft journal bearing, and be used to lubricate
The trunnion bearing lubrication branch of main shaft journal bearing, space passes through principal axis lubrication oil return branch and institute where the main shaft journal bearing
The connection of screw rod cavity is stated, the screw rod cavity is connected to the exhaust outlet of shell.
Preferably, the preceding end bearing in space where the main shaft journal bearing equipped with the female rotor and the male rotor
Preceding end bearing.
Preferably, trunnion bearing lubrication branch and principal axis lubrication oil return branch are respectively provided on the housing.
It preferably, further include being connect with space where the oil inlet pipe and rear end cap female rotor bearing, and be used to cool down
The cooling branch of the rear end cap female rotor bearing of rear end cap female rotor bearing, the cooling branch of the rear end cap female rotor bearing with it is described
The connection of screw rod cavity.
It preferably, further include being connect with space where the oil inlet pipe and rear end cap male rotor bearing, and be used to cool down
The cooling branch of the rear end cap male rotor bearing of rear end cap male rotor bearing, the cooling branch of the rear end cap male rotor bearing with it is described
The connection of screw rod cavity.
Preferably, the cooling branch of the rear end cap female rotor bearing and the cooling branch of the rear end cap male rotor bearing are logical
Later end cap oil return branch is connected to the screw rod cavity.
Preferably, the male rotor oil inlet branch oil outlet and the oil outlet of the female rotor oil inlet branch with the shell
The exhaust outlet of body is connected to.
Preferably, the oil inlet pipe is straight tube structure.
Preferably, the trunnion bearing lubrication branch is L-type branch, at the dog-ear of the trunnion bearing lubrication branch
End is sealed by plug.
Preferably, the oil inlet pipe is located at the shell middle position, and the oil inlet pipe length direction is along vertical
It is vertically arranged in the male rotor pivot center.
In the above-mentioned technical solutions, screw air compressor provided by the utility model, including shell, trunnion bearing lubrication branch
Road, the rear end cap for blocking shell end, the interior screw rod cavity being equipped with for accommodating female rotor and male rotor of shell, shell are equipped with
Oil inlet pipe and oil inlet interface are connected to oil inlet pipe, and cool down the male rotor oil inlet branch and yin of male rotor and female rotor respectively
Rotor oil inlet branch.Trunnion bearing lubrication branch is connect with space where oil inlet pipe and main shaft journal bearing, and for lubricating
Main shaft journal bearing.Space is connected to by principal axis lubrication oil return branch with screw rod cavity where main shaft journal bearing, screw rod cavity and shell
Exhaust outlet connection on body.
As can be seen from the above description, in screw air compressor provided by the present application, by the way that trunnion bearing lubrication branch is arranged
Road, male rotor oil inlet branch and female rotor oil inlet branch, when so that screw air compressor working, oil liquid passes through the latter portion of oil inlet pipe
Divide cooling male rotor and female rotor, space where another part enters main shaft journal bearing by trunnion bearing lubrication branch is real
Now cooling and lubrication, subsequently enters screw rod cavity, is discharged finally by exhaust outlet, effectively extend the cooling path of oil liquid,
And then screw air compressor bulk temperature is reduced, therefore, the cooling performance of screw air compressor provided by the present application improves.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is the embodiments of the present invention, for those of ordinary skill in the art, without creative efforts, also
Other attached drawings can be obtained according to the attached drawing of offer.
Fig. 1 is the structural schematic diagram of screw air compressor provided by the utility model embodiment；
Fig. 2 is structural schematic diagram of the screw air compressor described in Fig. 1 along the direction A-A；
Fig. 3 is structural schematic diagram of the screw air compressor described in Fig. 1 along the direction B-B；
Fig. 4 is structural schematic diagram of the screw air compressor described in Fig. 1 along the direction C-C；
Fig. 5 is structural schematic diagram of the screw air compressor described in Fig. 1 along the direction D-D；
Fig. 6 is the top view of screw air compressor provided by the utility model embodiment；
Fig. 7 is structural schematic diagram of the helical-lobe compressor shown in Fig. 6 along the direction M-M；
Fig. 8 is the bottom view of screw air compressor provided by the utility model embodiment；
Fig. 9 is structural schematic diagram of the helical-lobe compressor shown in Fig. 8 along the direction N-O-O-N.
Wherein in Fig. 1-9: 1- oil inlet interface, 2- oil inlet pipe, 3- female rotor oil inlet branch, 4- male rotor oil inlet branch,
5- rear end cap female rotor bearing cools down branch, 6- rear end cap male rotor bearing cooling branch, 7- trunnion bearing lubrication branch, 8-
Rear end cap, 9- shell, 10- main shaft mounting portion, 11- female rotor, 12- exhaust outlet, 13- male rotor, 14- rear end cap oil return branch,
15- principal axis lubrication oil return branch, 16- screw rod cavity.
Specific embodiment
The core of the utility model is to provide a kind of screw air compressor, and the cooling performance of the screw air compressor improves.
It is with reference to the accompanying drawing and real in order to make those skilled in the art more fully understand the technical solution of the utility model
Applying mode, the utility model is described in further detail.
Fig. 1 to Fig. 9 is please referred to, in a specific embodiment, the screw rod that the utility model specific embodiment provides is empty
Press is equipped in shell 9 for accommodating including shell 9, trunnion bearing lubrication branch 7, the rear end cap 8 for blocking 9 end of shell
The screw rod cavity 16 of female rotor 11 and male rotor 13, shell 9 is equipped with oil inlet pipe 2 and oil inlet interface 1 and oil inlet pipe 2 connects
It is logical, and the male rotor oil inlet branch 4 and female rotor oil inlet branch 3 of male rotor 13 and female rotor 11 are cooled down respectively.
Trunnion bearing lubrication branch 7 is connect with space where oil inlet pipe 2 and main shaft journal bearing, and is used for lubricating spindle
Journal bearing.Space is connected to by principal axis lubrication oil return branch 15 with screw rod cavity 16 where main shaft journal bearing.It is preferred that principal axis lubrication
For the setting of oil return branch 15 in 9 front end of shell, i.e. main shaft mounting portion, main shaft mounting portion is one end on shell 9 far from rear end cap 8.
When screw air compressor works, oil liquid enters oil inlet pipe 2 by oil inlet interface 1, and oil liquid is latter by oil inlet pipe 2
Part enters the cavity of male rotor 13 by male rotor oil inlet branch 4, cooling male rotor 13, by female rotor oil inlet branch 3 into
Enter the cooling female rotor 11 of female rotor cavity, sky where another part enters main shaft journal bearing by trunnion bearing lubrication branch 7
Between, realize cooling and lubrication, due to the suction that screw rod engagement generates so that oil liquid by principal axis lubrication oil return branch 15 into
Enter screw rod cavity 16, is finally discharged after mixing air compression by exhaust outlet 12 in screw rod cavity 16.
As can be seen from the above description, in the screw air compressor provided by the application specific embodiment, by the way that main shaft is arranged
Journal bearing lubricates branch 7, male rotor oil inlet branch 4 and female rotor oil inlet branch 3, effectively extends the cooling path of oil liquid,
And oil liquid is finally back to 12 position of exhaust outlet, and then reduces screw air compressor bulk temperature, oil consumption can be low, provided by the present application
The cooling performance of screw air compressor improves.
In order to further increase cooling effect, it is preferable that be equipped with the front end axis of female rotor 11 where main shaft journal bearing in space
The preceding end bearing with male rotor 13 is held, specifically, connection between each bearing hole can be realized cooling.Oil liquid enters trunnion
In space where bearing can preceding end bearing and male rotor 13 to bearing and female rotor 11 on main shaft preceding end bearing simultaneously
It is lubricated and cools down.
Specifically, for the ease of dismounting and processing screw air compressor, it is preferable that trunnion bearing lubrication branch 7 and main shaft profit
Oily branch 15 is slid back to be arranged on shell 9.
Further, the screw air compressor further include connect with space where oil inlet pipe 2 and rear end cap female rotor bearing, and
The cooling branch 5 of rear end cap female rotor bearing for cooling down rear end cap female rotor bearing, the cooling branch 5 of rear end cap female rotor bearing
It is connected to screw rod cavity 16.
Further, which further includes connecting with space where oil inlet pipe 2 and rear end cap male rotor bearing,
And the cooling branch 6 of rear end cap male rotor bearing for cooling down rear end cap male rotor bearing, the cooling branch of rear end cap male rotor bearing
Road 6 is connected to screw rod cavity 16.It is cold by the cooling branch 5 of setting rear end cap female rotor bearing and/or rear end cap male rotor bearing
But branch 6 further extend the cooling path of oil liquid, further improve the cooling effect of screw air compressor.
In order to simplify 8 structure of rear end cap, it is preferable that the cooling branch 5 of rear end cap female rotor bearing and rear end cap male rotor bearing
Cooling branch 6 is connected to by rear end cap oil return branch 14 with screw rod cavity 16.
For the ease of the discharge of the oil liquid of cooling male rotor 13 and female rotor 11, it is preferable that 4 oil outlet of male rotor oil inlet branch and
The oil outlet of female rotor oil inlet branch 3 is connected to the exhaust outlet 12 of shell 9.
For the ease of oil liquid flowing, it is preferable that oil inlet pipe 2 is straight tube structure.
Branch 7 is lubricated for the ease of machining spindle journal bearing, it is preferable that trunnion bearing lubrication branch 7 is L-type branch, main
The bearing of journals lubricates end at the dog-ear of branch 7 and is sealed by plug, certainly, in specific process, is related to the upper of bending
Stating oil channel structures can be as above arranged.
On the basis of above-mentioned each scheme, it is preferable that oil inlet pipe 2 is located at 9 middle position of shell, and 2 length of oil inlet pipe
Direction perpendicular to 13 pivot center of male rotor along being vertically arranged, by the way that oil inlet pipe 2 is located at 9 middle position of shell, further
Extend the cold path of screw air compressor interior oil.
For the ease of processing screw air compressor, it is preferable that shell 9 is an integral molding structure.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
The foregoing description of the disclosed embodiments can be realized professional and technical personnel in the field or using originally practical new
Type.Various modifications to these embodiments will be readily apparent to those skilled in the art, and determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the present invention will not be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The widest scope consistent with features of novelty.
Claims (10)
1. a kind of screw air compressor, the rear end cap (8) including shell (9) and closure shell (9) end, the shell (9)
The interior screw rod cavity (16) being equipped with for accommodating female rotor (11) and male rotor (13), the shell (9) are equipped with oil inlet pipe
(2) and oil inlet interface (1) is connected to the oil inlet pipe (2), and cools down the male rotor (13) and the female rotor respectively
(11) male rotor oil inlet branch (4) and female rotor oil inlet branch (3), which is characterized in that further include and the oil inlet pipe (2)
It is connected with space where main shaft journal bearing, and is used for the trunnion bearing lubrication branch (7) of lubricating spindle journal bearing, the main shaft
Space is connected to by principal axis lubrication oil return branch (15) with the screw rod cavity (16) where journal bearing, the screw rod cavity (16)
It is connected to the exhaust outlet (12) of shell (9).
2. screw air compressor according to claim 1, which is characterized in that be equipped with institute where the main shaft journal bearing in space
State the preceding end bearing of female rotor (11) and the preceding end bearing of the male rotor (13).
3. screw air compressor according to claim 1, which is characterized in that trunnion bearing lubrication branch (7) and main shaft profit
Oily branch (15) is slid back to be arranged on the shell (9).
4. screw air compressor according to claim 1, which is characterized in that further include and the oil inlet pipe (2) and rear end
Space connection where lid female rotor bearing, and the cooling branch of rear end cap female rotor bearing for cooling down rear end cap female rotor bearing
(5), the rear end cap female rotor bearing cooling branch (5) is connected to the screw rod cavity (16).
5. screw air compressor according to claim 4, which is characterized in that further include and the oil inlet pipe (2) and rear end
Space connection where lid male rotor bearing, and the cooling branch of rear end cap male rotor bearing for cooling down rear end cap male rotor bearing
(6), the rear end cap male rotor bearing cooling branch (6) is connected to the screw rod cavity (16).
6. screw air compressor according to claim 5, which is characterized in that the cooling branch of the rear end cap female rotor bearing
(5) and the rear end cap male rotor bearing cooling branch (6) passes through rear end cap oil return branch (14) and the screw rod cavity
(16) it is connected to.
7. screw air compressor according to claim 1, which is characterized in that male rotor oil inlet branch (4) oil outlet and
The oil outlet of the female rotor oil inlet branch (3) is connected to the exhaust outlet (12) of the shell (9).
8. screw air compressor according to claim 1, which is characterized in that the oil inlet pipe (2) is straight tube structure.
9. screw air compressor according to claim 1, which is characterized in that the trunnion bearing lubrication branch (7) is L-type
Branch, end passes through plug and seals at the dog-ear of the trunnion bearing lubrication branch (7).
10. screw air compressor according to claim 1 to 9, which is characterized in that the oil inlet pipe (2) is located at
Shell (9) middle position, and the oil inlet pipe (2) length direction hangs down along perpendicular to the male rotor (13) pivot center
Straight setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821980703.5U CN209041116U (en) | 2018-11-28 | 2018-11-28 | Screw air compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821980703.5U CN209041116U (en) | 2018-11-28 | 2018-11-28 | Screw air compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209041116U true CN209041116U (en) | 2019-06-28 |
Family
ID=67043671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821980703.5U Active CN209041116U (en) | 2018-11-28 | 2018-11-28 | Screw air compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209041116U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113323873A (en) * | 2021-07-05 | 2021-08-31 | 漯河职业技术学院 | Electric compressor and control method thereof |
-
2018
- 2018-11-28 CN CN201821980703.5U patent/CN209041116U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113323873A (en) * | 2021-07-05 | 2021-08-31 | 漯河职业技术学院 | Electric compressor and control method thereof |
| CN113323873B (en) * | 2021-07-05 | 2022-07-22 | 漯河职业技术学院 | Electric compressor and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No.98, dongtaihe Road, Jiaojiang District, Taizhou City, Zhejiang Province Patentee after: Taitian Group Co.,Ltd. Address before: No.98, dongtaihe Road, Jiaojiang District, Taizhou City, Zhejiang Province Patentee before: TAITIAN GROUP CO.,LTD. |
|
| CP01 | Change in the name or title of a patent holder |