CN108894984A - Screw compressor and bearing device thereof - Google Patents
Screw compressor and bearing device thereof Download PDFInfo
- Publication number
- CN108894984A CN108894984A CN201811030176.6A CN201811030176A CN108894984A CN 108894984 A CN108894984 A CN 108894984A CN 201811030176 A CN201811030176 A CN 201811030176A CN 108894984 A CN108894984 A CN 108894984A
- Authority
- CN
- China
- Prior art keywords
- bearing
- angular contact
- tapered roller
- rotor
- outer ring
- 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.)
- Pending
Links
- 125000006850 spacer group Chemical group 0.000 claims description 5
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 238000005096 rolling process Methods 0.000 claims 1
- 238000000034 method Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C18/12—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
- F04C18/14—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
- F04C18/16—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/50—Bearings
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention discloses a bearing device, comprising: the tapered roller bearing is arranged close to the inner side wall of the machine shell, and the outer ring of the tapered roller bearing is blocked by the inner side wall; the angular contact bearing is arranged on one side, far away from the inner side wall, of the tapered roller bearing; a spring provided on a side of the angular contact bearing away from the tapered roller bearing, the spring pressing an outer race of the angular contact bearing toward the inner side wall; the bearing end cover can be connected to the shell and presses an outer ring of the angular contact bearing through the spring; and the pressure plate is used for connecting the inner ring of the angular contact bearing and the rotor. The tapered roller bearing and the angular contact bearing are arranged side by side and are respectively used for bearing the radial force and the axial force of the rotor. The bearing device provided by the invention has a simple structure and can ensure the stable operation of the rotor. The invention also discloses a screw compressor with the bearing device.
Description
Technical field
The present invention relates to helical-lobe compressor fields, more specifically to a kind of helical-lobe compressor and its bearing arrangement.
Background technique
Helical-lobe compressor includes male rotor and female rotor.The connection of the front end of driving device and male rotor, drives male rotor to turn
It is dynamic.Male rotor is meshed with female rotor, and male rotor drives female rotor rotation.The rear end of male rotor and female rotor is provided with bearing
Device.Bearing arrangement is used to support male rotor, and perhaps female rotor bears the axial force and radial force of male rotor or female rotor.It is existing
Some bearing arrangements are composed of multiple bearings such as roller bearing, four-point contact ball, angular contact bearing, and structure is complicated,
It is at high cost, and stability is poor.
Therefore, a kind of bearing arrangement how is designed, it is art technology that the bearing arrangement structure is simple, and runs smoothly
Personnel's critical problem urgently to be resolved.
Summary of the invention
The object of the present invention is to provide a kind of bearing arrangements, and the bearing arrangement structure is simple, and runs smoothly.
A kind of bearing arrangement, including：
Tapered roller bearing, the tapered roller bearing are arranged close to the inner sidewall of casing, the tapered roller bearing
Outer ring is stopped by the inner sidewall；
The angular contact bearing of side of the tapered roller bearing far from the inner sidewall is set；
The spring of side of the angular contact bearing far from the tapered roller bearing is set, and the spring is to described interior
The direction of side wall compresses the outer ring of the angular contact bearing；
The bearing (ball) cover that can be connected on the casing, the bearing (ball) cover pass through angular contact described in the spring compression
The outer ring of bearing；
For connecting the inner ring of the angular contact bearing and the pressing plate of rotor.
It preferably, further include adjustment gasket, the adjustment gasket is located at the inner ring and rotor of the tapered roller bearing
Between main body.
Preferably, spacer is provided between the outer ring of the tapered roller bearing and the outer ring of the angular contact bearing.
It preferably, further include pressing sleeve, the pressing sleeve acts on the outer ring of the angular contact bearing, and the spring passes through institute
State the outer ring that pressing sleeve squeezes the angular contact bearing.
Preferably, the spring is disk spring.
Preferably, the mounting groove for installing the disk spring is provided on the pressing sleeve.
Preferably, outage is provided on the pressing sleeve.
Preferably, the pressing plate is connect by soket head cap screw with the rotor.
Preferably, the soket head cap screw is evenly arranged multiple for the end face along the pressing plate.
The invention also discloses a kind of helical-lobe compressor, including male rotor and female rotor, the male rotor and/or female rotor
Rear end be provided with bearing arrangement, the bearing arrangement is any one of the above bearing arrangement.
It can be seen from the above technical proposal that the bearing arrangement in the present invention include tapered roller bearing, angular contact bearing,
Spring and bearing (ball) cover.Tapered roller bearing and angular contact bearing are arranged side by side, be respectively used to undertake the radial force of rotor and
Axial force.The outer ring of the outer ring of tapered roller bearing and angular contact bearing is pressed on the inside of casing by spring by bearing (ball) cover
On wall, it is ensured that two outer rings are fixed.Pressing plate is used to connect the inner ring and rotor of angular contact bearing, it is ensured that rotor and inner ring are same
Step rotation.Bearing arrangement structure provided by the invention is simple, and can ensure the stable operation of rotor.
Detailed description of the invention
Scheme in order to illustrate the embodiments of the present invention more clearly, below will be required to describing in embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for ability
For field technique personnel, without creative efforts, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram for the bearing arrangement that a specific embodiment of the invention provides；
Fig. 2 is the structural schematic diagram for the helical-lobe compressor that a specific embodiment of the invention provides.
Wherein, 1 be tapered roller bearing, 2 be angular contact bearing, 3 be disk spring, 4 be pressing plate, 5 be pressing sleeve, 6 be in
Hex screw, 7 be adjustment gasket, 8 be bearing (ball) cover, 9 be inner sidewall, 10 be casing, 11 be male rotor, 12 be female rotor, 13
It is outage for spacer, 14.
Specific embodiment
The invention discloses a kind of bearing arrangements, and the bearing arrangement structure is simple, and runs smoothly.
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Base
In the embodiment of the present invention, those of ordinary skill in the art without making creative work it is obtained it is all its
Its embodiment, shall fall within the protection scope of the present invention.
In an of the invention specific embodiment, bearing arrangement include tapered roller bearing 1, angular contact bearing 2, spring and
Bearing (ball) cover 8.Wherein, tapered roller bearing 1 is arranged close to the inner sidewall 9 of casing 10.The outer ring of tapered roller bearing 1 is by inside
Wall 9 stops, and tapered roller bearing 1 can not inwardly 9 side of side wall movement.The setting of angular contact bearing 2 is in tapered roller bearing 1 far from interior
The side of side wall 9, angular contact bearing 2 and angular contact bearing 2 are distributed in the two sides of tapered roller bearing 1 in other words.Spring setting
In side of the angular contact bearing 2 far from tapered roller bearing 1, spring and tapered roller bearing 1 are distributed in angular contact axis in other words
Hold 2 two sides.Spring acts on the outer ring of angular contact bearing 2.The direction of inside side wall 9 compresses the outer ring of angular contact bearing 2.
Bearing (ball) cover 8 can be connected on casing 10.After bearing (ball) cover 8 is installed in place, bearing (ball) cover 8 squeezes spring, and spring squeezes
The outer ring of angular contact bearing 2, i.e. bearing (ball) cover 8 pass through spring for the outer ring of the outer ring of angular contact bearing 2 and tapered roller bearing 1
It is extruded on inner sidewall 9.Pressing plate 4 is used to connect the inner ring and rotor of angular contact bearing 2.
Tapered roller bearing 1 and angular contact bearing 2 in the present embodiment are arranged side by side, and are respectively used to undertake the radial direction of rotor
Power and axial force.The outer ring of the outer ring of tapered roller bearing 1 and angular contact bearing 2 is pressed on machine by spring by bearing (ball) cover 8
On the inner sidewall 9 of shell 10, it is ensured that two outer rings are fixed.Pressing plate 4 is used to connect the inner ring and rotor of angular contact bearing 2, really
It protects rotor and inner ring rotates synchronously.Bearing arrangement structure provided in this embodiment is simple, and can ensure the stable operation of rotor.
Rotor generally includes main body and axle journal.Axle journal is assemblied in the inner ring of bearing arrangement.Main body is to remove except axle journal
Other parts.In a specific embodiment of the invention, it is provided between the main body of rotor and the inner ring of tapered roller bearing 1
Gasket 7 is adjusted, for adjusting the gap between the main body of rotor and casing 10, while making the inner ring of tapered roller bearing 1 and turning
Pretightning force is generated between the main body of son, it is ensured that the inner ring of rotor and tapered roller bearing 1 rotates synchronously.In addition, adjustment 7 He of gasket
Pressing plate 4 forms two opposite extruding forces to the inner ring of tapered roller bearing 1 and the inner ring of angular contact bearing 2, and circular cone is avoided to roll
The inner ring of sub- bearing 1 and the inner ring axial float of angular contact bearing 2, to further improve the stability of operation.
In a specific embodiment of the invention, set between the outer ring of tapered roller bearing 1 and the outer ring of angular contact bearing 2
Spacer 13 is set.Spacer 13 is used to fill the gap between the outer ring of tapered roller bearing 1 and the outer ring of angular contact bearing 2, really
The transmitting between two outer rings with power is protected, so that it is guaranteed that spring can be by the outer ring of angular contact bearing 2 and tapered roller bearing 1
Outer ring be pressed on inner sidewall 9.
Pressing sleeve 5 is additionally arranged in a specific embodiment of the invention.Pressing sleeve 5 acts on the outer ring of angular contact bearing 2.Spring
The outer ring of angular contact bearing 2 is squeezed by pressing sleeve 5.Pressing sleeve 5 can ensure the uniform force of the outer ring of angular contact bearing 2.Separately
The outer ring of outer 5 angular contact bearings 2 of pressing sleeve forms protective effect.
It is preferably disk spring 3 by spring in a specific embodiment of the invention.Disk spring 3 is tapered in the axial direction,
Convenient for acting on the pressing sleeve 5 of annular.For the ease of the installation of disk spring 3, the installation of annular can also be set on pressing sleeve 5
Slot, the mounting groove is for installing disk spring 3.In addition, for the ease of by the profit in tapered roller bearing 1 and angular contact bearing 2
Lubricating oil discharge, can also be arranged outage on pressing sleeve 5.
In a specific embodiment of the invention, pressing plate 4 is connect by soket head cap screw 6 with rotor.The company of soket head cap screw 6
It connects easy to disassemble, and is connected firmly.The number of soket head cap screw 6 can be to be multiple, and multiple soket head cap screws 6 are along pressing plate 4
End face is evenly arranged, so that it is guaranteed that fastness and stability that pressing plate 4 is connect with rotor.
The invention also discloses a kind of helical-lobe compressor, which includes male rotor 11 and female rotor 12.Sun turns
The rear end of son 11 and/or female rotor 12 is provided with bearing arrangement, which is any one of the above bearing arrangement, above-mentioned
Bearing arrangement has said effect, and the helical-lobe compressor with above-mentioned bearing arrangement equally has said effect, therefore herein no longer
It repeats.
Finally, it is to be noted that, the terms "include", "comprise" or its any other variant be intended to it is non-exclusive
Property include so that include a series of elements process, method, article or equipment not only include those elements, but also
Further include other elements that are not explicitly listed, or further include for this process, method, article or equipment it is intrinsic
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including described
There is also other identical elements in the process, method, article or equipment of element.
The above description of the disclosed embodiments, enables those skilled in the art to implement or use the present invention.It is right
A variety of modifications of these embodiments will be readily apparent to those skilled in the art, and as defined herein one
As principle can realize in other embodiments without departing from the spirit or scope of the present invention.Therefore, the present invention will
It will not be intended to be limited to the embodiments shown herein, and be to fit to consistent with the principles and novel features disclosed herein
Widest scope.
Claims (10)
1. a kind of bearing arrangement, which is characterized in that including：
Tapered roller bearing (1), inner sidewall (9) of the tapered roller bearing (1) close to casing (10) are arranged, the circular cone rolling
The outer ring of sub- bearing (1) is stopped by the inner sidewall (9)；
Angular contact bearing (2) in the side of the tapered roller bearing (1) far from the inner sidewall (9) is set；
Spring in the side of the angular contact bearing (2) far from the tapered roller bearing (1) is set, and the spring is to described
The direction of inner sidewall (9) compresses the outer ring of the angular contact bearing (2)；
The bearing (ball) cover (8) that can be connected on the casing (10), the bearing (ball) cover (8) pass through described in the spring compression
The outer ring of angular contact bearing (2)；
For connecting the inner ring of the angular contact bearing (2) and the pressing plate (4) of rotor.
2. bearing arrangement according to claim 1, which is characterized in that further include adjustment gasket (7), the adjustment gasket
(7) between the inner ring of the tapered roller bearing (1) and the main body of rotor.
3. bearing arrangement according to claim 1, which is characterized in that the outer ring of the tapered roller bearing (1) with it is described
Spacer (13) are provided between the outer ring of angular contact bearing (2).
4. bearing arrangement according to claim 1, which is characterized in that further include pressing sleeve (5), the pressing sleeve (5) acts on
On the outer ring of the angular contact bearing (2), the spring squeezes the outer ring of the angular contact bearing (2) by the pressing sleeve (5).
5. bearing arrangement according to claim 4, which is characterized in that the spring is disk spring (3).
6. bearing arrangement according to claim 5, which is characterized in that be provided on the pressing sleeve (5) described for installing
The mounting groove of disk spring (3).
7. bearing arrangement according to claim 4, which is characterized in that be provided with outage (14) on the pressing sleeve (5).
8. bearing arrangement according to claim 1, which is characterized in that the pressing plate (4) passes through soket head cap screw (6) and institute
State rotor connection.
9. bearing arrangement according to claim 8, which is characterized in that the soket head cap screw (6) is along the pressing plate
(4) end face is evenly arranged multiple.
10. a kind of helical-lobe compressor, including male rotor (11) and female rotor (12), which is characterized in that the male rotor (11) and/
Or the rear end of female rotor (12) is provided with bearing arrangement as described in any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811030176.6A CN108894984A (en) | 2018-09-05 | 2018-09-05 | Screw compressor and bearing device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811030176.6A CN108894984A (en) | 2018-09-05 | 2018-09-05 | Screw compressor and bearing device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108894984A true CN108894984A (en) | 2018-11-27 |
Family
ID=64359659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811030176.6A Pending CN108894984A (en) | 2018-09-05 | 2018-09-05 | Screw compressor and bearing device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108894984A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202867198U (en) * | 2012-11-07 | 2013-04-10 | 王俊杰 | Low-pressure oil-injection screw compressor |
| CN103790950A (en) * | 2012-10-31 | 2014-05-14 | 瓦房店福斯特轴承科技开发有限公司 | Double-row variable combined bearing |
| CN206409385U (en) * | 2016-12-30 | 2017-08-15 | 无锡五洋赛德压缩机有限公司 | Novel double-screw air compressor machine |
| CN208702689U (en) * | 2018-09-05 | 2019-04-05 | 泰田集团有限公司 | A kind of helical-lobe compressor and its bearing arrangement |
-
2018
- 2018-09-05 CN CN201811030176.6A patent/CN108894984A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103790950A (en) * | 2012-10-31 | 2014-05-14 | 瓦房店福斯特轴承科技开发有限公司 | Double-row variable combined bearing |
| CN202867198U (en) * | 2012-11-07 | 2013-04-10 | 王俊杰 | Low-pressure oil-injection screw compressor |
| CN206409385U (en) * | 2016-12-30 | 2017-08-15 | 无锡五洋赛德压缩机有限公司 | Novel double-screw air compressor machine |
| CN208702689U (en) * | 2018-09-05 | 2019-04-05 | 泰田集团有限公司 | A kind of helical-lobe compressor and its bearing arrangement |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: No.98, dongtaihe Road, Jiaojiang District, Taizhou City, Zhejiang Province Applicant after: Taitian Group Co.,Ltd. Address before: No.98, dongtaihe Road, Jiaojiang District, Taizhou City, Zhejiang Province Applicant before: TAITIAN GROUP CO.,LTD. |
|
| CB02 | Change of applicant information |