CN102094835A - Screw compressor - Google Patents
Screw compressor Download PDFInfo
- Publication number
- CN102094835A CN102094835A CN200910261562.0A CN200910261562A CN102094835A CN 102094835 A CN102094835 A CN 102094835A CN 200910261562 A CN200910261562 A CN 200910261562A CN 102094835 A CN102094835 A CN 102094835A
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- section
- bearing
- motor rotor
- motor
- screw
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- 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.)
- Granted
Links
- 230000006698 induction Effects 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 3
- 239000003921 oil Substances 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 229910000976 Electrical steel Inorganic materials 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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- Applications Or Details Of Rotary Compressors (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention discloses a screw compressor. The screw compressor comprises a shell, a motor rotor, a motor stator, a screw swivel and the like; the screw swivel also comprises an extension section which is an effective sensing section extending from a motor connection section and exceeding the motor rotor; the extension section is provided with a screw hole; the screw compressor also comprises a motor rotor baffle plate, a screw lock piece and a third bearing; the motor rotor baffle plate comprises a base and a first flange part and a second flange part which extend from the two opposite sides of the base; the first flange part is sleeved on the extension section and is pressed against the effective sensing section in an axis direction; the screw lock piece and the screw hole are spirally locked; the screw lock piece presses the base in the axis direction; and the third bearing is sandwiched between the second flange part and an end cover. In the screw compressor, the motor rotor and the screw swivel are effectively fixed and a revolving shaft of the compressor can be kept rotating stably.
Description
Technical field
The present invention relates to a kind of compressor, particularly a kind of screw compressor, the motor rotor of this screw compressor and spiral pivot can be fixed effectively, and it is stable to keep the rotating shaft running of compressor.
Background technique
As shown in Figure 1, existing compressor mainly comprises motor 91 and spiral pivot 92, and motor 91 has motor stator 93 and motor rotor 94, and motor 91, spiral pivot 92, motor stator 93 are arranged in the shell 90 with motor rotor 94.Shell 90 comprises a main body 901 and an end cap 902, and the assembling sequence of compressor is that motor 91 and spiral pivot 92 are installed on earlier in the main body 901 of shell 90, and the port that again end cap 902 axially is covered on main body 901 is with sealing.
In existing compressor, the rotating shaft of spiral pivot has two kinds of design kenels, and is a kind of for the end of rotating shaft is the motor connected section, that is do not exceed the actual induction section of motor rotor, promptly as shown in Figure 1; Another kind of for exceed the actual induction section of motor rotor from many again extension one sections of motor connected section.Like this, during owing to revolution, can produce vibration or displacement between rotating shaft and the motor rotor inevitably,, will cause the damage of assemblies such as bearing under the situation of higher speed running if it is serious more to become.
Summary of the invention
The technical problem to be solved in the present invention is in order to overcome the defective that prior art shaft and motor rotor generation vibration or displacement damage bearing, a kind of screw compressor is provided, it suppresses motor rotor by the motor rotor block and moves axially and supporting revolving shaft, and motor rotor and spiral pivot can be fixed effectively.
The present invention solves above-mentioned technical problem by following technical proposals: a kind of screw compressor, and it comprises:
A shell, it comprises a main body and an end cap, this end cap and this body junction merge the port of this main body of sealing;
A motor rotor, it comprises the actual induction section;
A motor stator, it is around motor rotor;
A spiral pivot, it comprises a spiral section, motor connected section, between one first supporting section between this spiral section and this motor connected section and be positioned at one second supporting section with the opposite side of this motor connected section, this first supporting section and this second supporting section are arranged with a clutch shaft bearing and one second bearing respectively, this motor connected section and this motor rotor is connected and rotate synchronously;
It is characterized in that, this spiral pivot also comprises an extension, this extension is the actual induction section that begins to extend and surpass this motor rotor from this motor connected section, this extension is provided with a screw, and this screw compressor also comprises a motor rotor block, a spiral lock and one the 3rd bearing, this motor rotor block comprises a base portion and respectively from extended one first lip part of this base portion two opposite sides and one second lip part, this first lip part is sheathed on this extension and withstands this actual induction section in the axial direction, this spiral lock and this screw spiral pin, this spiral lock is pushed down this base portion in the axial direction, and the 3rd bearing is located between this second lip part and this end cap.
Preferably, described the 3rd bearing is a ball bearing.
Preferably, described the 3rd bearing is a zanjon ball bearing.
Preferably, described motor connected section engages with motor rotor.
Preferably, the inner face of described end cap is formed with a bearing support, and the 3rd bearing is embedded on this bearing support.
Preferably, described spiral lock is a bolt.
Preferably, described end cap is provided with an oil duct, and oil duct runs through end cap.
Preferably, be provided with a plain washer between described spiral lock and the base portion.
Positive progressive effect of the present invention is: screw compressor of the present invention suppresses motor rotor by the motor rotor block and moves axially and supporting revolving shaft, and motor rotor and spiral pivot can be fixed effectively, and the rotating shaft running that can keep compressor is stablized.
Description of drawings
Fig. 1 is the structural representation of existing compressor.
Fig. 2 is the perspective exploded view of screw compressor of the present invention.
Fig. 3 is the schematic cross-section of screw compressor of the present invention.
Embodiment
Lift a preferred embodiment below, and come the clearer the present invention that intactly illustrates in conjunction with the accompanying drawings.
As shown in Figures 2 and 3, screw compressor of the present invention comprises a shell 10 and the compressor assembly that is disposed at shell 10 inside.Shell 10 mainly is made of a main body 11 and an end cap 12, and wherein end cap 12 can combine and seal the port of main body 11 with main body 11, and end cap 12 also is provided with an oil duct 122, and oil duct 122 runs through end cap 12.The above-mentioned compressor assembly comprises motor, spiral pivot 30, motor rotor block 23, spiral lock 24, clutch shaft bearing 41, second bearing 42 and the 3rd bearing 43.
Motor comprises a motor stator 21 and a motor rotor 22, and motor stator 21 is compared with the position of spiral pivot 30 around motor rotor 22, more close end cap 12 1 sides in the position of motor.Motor rotor 22 comprises the anchor portion 222 of being piled up the actual induction section 221 of tubular and being interspersed in the actual induction section 221 and being fixed at two ends by silicon steel plate.
In fact, motor rotor 22 is concaved with a keyway W in this example, and 302 correspondences of motor connected section are provided with a key K, and spiral pivot 30 reaches synchronous rotation with motor by the bonding mode.Above-mentioned first supporting section 303 and second supporting section 305 sheathed respectively the clutch shaft bearing 41 and second bearing 42, thereby be supported in the shell 10.The clutch shaft bearing 41 and second bearing 42 are radial roller bearing (model is NU), and second bearing, 42 sides also are provided with a plurality of ball bearings 44.
Above-mentioned extension 301 is meant that spiral pivot 30 begins to extend and surpass the section of the actual induction section 221 of motor rotor 22 from motor connected section 302.Extension 301 also is concaved with a screw T in the end.
In this brief description present embodiment, adopt the assembling sequence of part assembly.Preface is installed motor stator 21, spiral pivot 30, motor rotor 22 (engaging with the keyway W of motor rotor 22 by the key K that pre-sets on the spiral pivot 30) successively, the then extension 301 of again motor rotor block 23 being inserted in spiral pivot 30, spiral lock 24 is locked in the spiral pivot 30 after passing plain washer 45, motor rotor block 23.In the end end cap 12 is bonded to before the main body 11, the 3rd bearing 43 is placed on second lip part 233 of motor rotor block 23, and ring makes it fastening in the heating, bearing support 121 alignings the 3rd bearing 43 outer shrouds of end cap 12 are inserted in it then, finally with bolt end cap 12 are locked on the shell 10.
From the above, motor rotor block of the present invention is except that suppressing the axially movable function of motor rotor, also has the supporting revolving shaft function, because the effect that screws by spiral lock makes the motor rotor block shaft to pressing motor rotor, so make to constitute motor rotor and the fastening state that is decided to be one of rotating shaft.Therefore, rotating shaft end and motor rotor produce the problem of vibration or displacement in the time of can improving rotating speed.
Though more than described the specific embodiment of the present invention, it will be understood by those of skill in the art that these only illustrate, under the prerequisite that does not deviate from principle of the present invention and essence, can make numerous variations or modification to these mode of executions.Therefore, protection scope of the present invention is limited by appended claims.
Claims (8)
1. screw compressor, it comprises:
A shell, it comprises a main body and an end cap, this end cap and this body junction merge the port of this main body of sealing;
A motor rotor, it comprises the actual induction section;
A motor stator, it is around motor rotor;
A spiral pivot, it comprises a spiral section, motor connected section, between one first supporting section between this spiral section and this motor connected section and be positioned at one second supporting section with the opposite side of this motor connected section, this first supporting section and this second supporting section are arranged with a clutch shaft bearing and one second bearing respectively, this motor connected section and this motor rotor is connected and rotate synchronously;
It is characterized in that, this spiral pivot also comprises an extension, this extension is the actual induction section that begins to extend and surpass this motor rotor from this motor connected section, this extension is provided with a screw, and this screw compressor also comprises a motor rotor block, a spiral lock and one the 3rd bearing, this motor rotor block comprises a base portion and respectively from extended one first lip part of this base portion two opposite sides and one second lip part, this first lip part is sheathed on this extension and withstands this actual induction section in the axial direction, this spiral lock and this screw spiral pin, this spiral lock is pushed down this base portion in the axial direction, and the 3rd bearing is located between this second lip part and this end cap.
2. screw compressor as claimed in claim 1 is characterized in that, described the 3rd bearing is a ball bearing.
3. screw compressor as claimed in claim 2 is characterized in that, described the 3rd bearing is a zanjon ball bearing.
4. screw compressor as claimed in claim 1 is characterized in that, described motor connected section engages with motor rotor.
5. screw compressor as claimed in claim 1 is characterized in that, the inner face of described end cap is formed with a bearing support, and the 3rd bearing is embedded on this bearing support.
6. screw compressor as claimed in claim 1 is characterized in that, described spiral lock is a bolt.
7. screw compressor as claimed in claim 1 is characterized in that, described end cap is provided with an oil duct, and oil duct runs through end cap.
8. screw compressor as claimed in claim 1 is characterized in that, is provided with a plain washer between described spiral lock and the base portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910261562.0A CN102094835B (en) | 2009-12-14 | 2009-12-14 | Screw compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910261562.0A CN102094835B (en) | 2009-12-14 | 2009-12-14 | Screw compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102094835A true CN102094835A (en) | 2011-06-15 |
| CN102094835B CN102094835B (en) | 2012-12-12 |
Family
ID=44128058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910261562.0A Active CN102094835B (en) | 2009-12-14 | 2009-12-14 | Screw compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102094835B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104110378A (en) * | 2014-07-25 | 2014-10-22 | 温岭市鑫磊空压机有限公司 | Screw compressor easy to disassemble and repair |
| CN104454537A (en) * | 2014-12-18 | 2015-03-25 | 福建雪人股份有限公司 | Screw-rod compressor |
| CN107061355A (en) * | 2015-12-30 | 2017-08-18 | 熵零技术逻辑工程院集团股份有限公司 | Spiral fluid passageway compressor |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6361271B1 (en) * | 1999-11-19 | 2002-03-26 | Capstone Turbine Corporation | Crossing spiral compressor/pump |
| CN201606272U (en) * | 2009-12-14 | 2010-10-13 | 上海汉钟精机股份有限公司 | Screw compressor |
-
2009
- 2009-12-14 CN CN200910261562.0A patent/CN102094835B/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104110378A (en) * | 2014-07-25 | 2014-10-22 | 温岭市鑫磊空压机有限公司 | Screw compressor easy to disassemble and repair |
| CN104110378B (en) * | 2014-07-25 | 2016-06-29 | 温岭市鑫磊空压机有限公司 | A kind of screw compressor being readily disassembled maintenance |
| CN104454537A (en) * | 2014-12-18 | 2015-03-25 | 福建雪人股份有限公司 | Screw-rod compressor |
| CN107061355A (en) * | 2015-12-30 | 2017-08-18 | 熵零技术逻辑工程院集团股份有限公司 | Spiral fluid passageway compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102094835B (en) | 2012-12-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Screw compressor Effective date of registration: 20220926 Granted publication date: 20121212 Pledgee: Shanghai Rural Commercial Bank Co.,Ltd. Jinshan sub branch Pledgor: SHANGHAI HANBELL PRECISE MACHINERY Co.,Ltd. Registration number: Y2022310000260 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20231017 Granted publication date: 20121212 Pledgee: Shanghai Rural Commercial Bank Co.,Ltd. Jinshan sub branch Pledgor: SHANGHAI HANBELL PRECISE MACHINERY Co.,Ltd. Registration number: Y2022310000260 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Spiral compressor Effective date of registration: 20231214 Granted publication date: 20121212 Pledgee: Shanghai Rural Commercial Bank Co.,Ltd. Jinshan sub branch Pledgor: SHANGHAI HANBELL PRECISE MACHINERY Co.,Ltd. Registration number: Y2023310000857 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |