CN103062061A - Method for improving reliability of main engine of oil-free screw compressor, and axial bearing locking structure - Google Patents
Method for improving reliability of main engine of oil-free screw compressor, and axial bearing locking structure Download PDFInfo
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- CN103062061A CN103062061A CN2013100299381A CN201310029938A CN103062061A CN 103062061 A CN103062061 A CN 103062061A CN 2013100299381 A CN2013100299381 A CN 2013100299381A CN 201310029938 A CN201310029938 A CN 201310029938A CN 103062061 A CN103062061 A CN 103062061A
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- synchromesh gear
- cod
- locking nut
- locking
- rotor
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Abstract
The invention discloses a method for improving the reliability of a main engine of an oil-free screw compressor and an axial bearing locking structure. The method and the axial bearing locking structure are characterized in that the method comprises the step of changing the installation position of a locking nut on a rotor to ensure that the locking nut directly presses an axial bearing instead of pressing a synchromesh gear; and the locking structure mainly comprises an adjusting pad (1), the axial bearing (2), the locking round nut (3) and the synchromesh gear (4), wherein the axial bearing (2) is arranged and positioned on a rotor shaft (5) between the adjusting pad (1) and the locking round nut (3), and the synchromesh gear (4) is arranged on the rotor shaft (5) and outside the locking round nut (3). According to the invention, the functional requirements and the installation sequence are synchronous, so that the installation and the adjustment are very conveniently and rapidly carried out in a synchronous manner, and the head of the motor engine reliability is improved at the same time.
Description
Technical field
The present invention relates to a kind of oil free screw compressor, thereby especially a kind of method and the locking mechanism of cod, specifically a kind of method and cod locking mechanism that improves the oil free screw compressor reliability that reaches the raising whole aircraft reliability by improving synchronous transmission gear stress prolongation synchromesh gear working life.
Background technique
The locking of general oil free screw compressor main frame cod all is arranged on outermost end, it is the synchromesh gear outside, its advantage is that locking operation is convenient, but the major function of synchromesh gear is that transmitting torque guarantees to keep enough safety clearances between the rotor profile simultaneously, causes afterwards the gap to adjust inconvenience so lock first.Cod is installed on the axle of yin, yang rotor in the oil free screw head, and its functional requirement mainly contains 2 points: one, rotor guarantees safety clearance (can not contact), i.e. exhaust end clearance with casing end face (dynamic and static parts); Two, overcome the axial force that gas produces rotor, guarantee in the rotor operation process axial displacement to occur.Synchromesh gear generally is installed on the axle head of oil free screw head yin, yang rotor, and its functional requirement mainly contains 2 points: one, the moment of rotation of male rotor is delivered to gear by rotor shaft, and then drives female rotor rotation, i.e. transmitting torque function by synchromesh gear; Two, because oil free screw head negative and positive rotor does not have Lubricants in the high speed operation process, its rotor profile can not contact (otherwise can cause very serious accident), so need to guarantee certain safety clearance between the rotor profile, namely synchromesh gear need to guarantee the back lash between the negative and positive rotor.Conventional solution is the outermost that stripped nut is placed the rotor axle head, this structure can cause the adjustment of rotor back lash very inconvenient, the pass order of its axial force is: gas pressure → rotor → locking nut → synchromesh gear → cod inner ring → ball → cod outer ring → body, and to reach the purpose that overcomes axial force.It can be seen, synchromesh gear has born extra axial force, and this extra factor causes the operating mode complicated of synchromesh gear, has increased the probability of synchromesh gear generation mechanical failure.
Summary of the invention
The objective of the invention is locking nut for existing oil free screw compressor main frame cod is installed in the synchromesh gear outside and causes the problem of synchromesh gear gap adjustment inconvenience after the nut check and be subject to responsive to axial force and cause the operating mode deleterious effects synchromesh gear problem in working life, invent a reliable lock, the method of the raising oil free screw compressor reliability that the gap is easy to adjust designs a kind of oil free screw compressor boss rod simultaneously to bearing locking structure.
One of technological scheme of the present invention is:
A kind of method that improves the oil free screw compressor reliability, it is characterized in that changing locking nut and the mounting point of synchromesh gear on rotor shaft, locking nut next-door neighbour cod is installed, and the axial force that rotor shaft is subject to is directly delivered on the body by cod, thereby so that synchromesh gear is not subjected to the effect of end thrust in the course of the work, reach the purpose of improving the synchromesh gear operating mode, to prolong its working life, improve the reliability of compressor complete machine.
Described synchromesh gear comprises the synchronous driving gear that is installed on the male rotor axle and the synchronous driven gear that is installed on the female rotor axle, described locking nut also comprises and is installed on the male rotor axle and is installed in locking nut on the female rotor axle, and described cod also comprises and is installed on the male rotor axle and is installed in cod on the female rotor axle.
Two of technological scheme of the present invention is:
A kind of oil free screw compressor boss rod is to bearing locking structure, it is characterized in that it mainly is comprised of spacer 1, cod 2, locking nut 3 and synchromesh gear 4, described cod 2 is installed on the rotor shaft 5 that is positioned between spacer 1 and the locking nut 3, and synchromesh gear 4 is installed on the rotor shaft 5, the outside of locking nut 3.
During implementation, described locking nut can adopt stripped nut.
Beneficial effect of the present invention:
The present invention is by moving to stripped nut between cod and the synchromesh gear, adjust first rotor exhaust end clearance (adjustment process need to be dismantled repeatedly, installation process) during assembling to technical requirements, carry out immediately cod locking, and then carry out Mesh Clearance Adjustment, synchromesh gear is installed.This assembly process is very succinct, convenient, and process is controlled.Notable change has also occured in the pass order of its axial force simultaneously, the pass order of its axial force is: gas pressure → rotor → locking nut → cod inner ring → ball → cod outer ring → body, structure after adjusting is it can be seen completely unified force-bearing situation and the functional requirement of each part, reduced the additionally stressed of synchromesh gear, the Mechanical Reliability of entire machine head has had significantly raising.
The present invention is synchronous with functional requirement and erection sequence, carries out synchronously so that install with adjustment, and is very convenient.
The present invention has changed technology prejudice, has reached unexpected effect by changing mounting point and order, so that the whole life-span is significantly improved.
Description of drawings
Fig. 1 is the cod locking mechanism schematic representation of existing oil free screw compressor.
Fig. 2 is cod locking mechanism schematic representation of the present invention.
Embodiment
The present invention is further illustrated below in conjunction with drawings and Examples.
Embodiment one.
A kind of method that improves the oil free screw compressor reliability, it is by changing stripped nut and the mounting point of synchromesh gear on rotor shaft, stripped nut next-door neighbour cod is installed, stripped nut directly is pressed on the interior blowout patche of cod, be delivered to outer blowout patche by ball again, finally be delivered on the body by outer blowout patche, thereby so that synchromesh gear is not subjected to the effect of end thrust in the course of the work, reach the purpose of improving the synchromesh gear operating mode, to prolong its working life, improve the reliability of compressor complete machine.Synchromesh gear wherein comprises the synchronous driving gear that is installed on the male rotor axle and the synchronous driven gear that is installed on the female rotor axle, described stripped nut also comprises and is installed on the male rotor axle and is installed in stripped nut on the female rotor axle, and described cod also comprises and is installed on the male rotor axle and is installed in cod on the female rotor axle.Change and the stressed change of rotor of erection sequence have been realized by changing the mounting point, the pass order of the axial force of rotor of the present invention is: gas pressure → rotor → locking nut → cod inner ring → ball → cod outer ring → body, structure after adjusting is it can be seen completely unified force-bearing situation and the functional requirement of each part, exempt the axially loaded of synchromesh gear, can significantly improve the Mechanical Reliability of entire machine head.
Embodiment two.
As shown in Figure 2.
A kind of oil free screw compressor boss rod is to bearing locking structure, it mainly is comprised of spacer 1, cod 2, stripped nut 3 and synchromesh gear 4, spacer 1 (comprises male rotor and female rotor with rotor shaft, structure is identical) on step surface offset and realize cod 2 left ends location, cod 2 is installed on the rotor shaft 5 that is positioned between spacer 1 and the stripped nut 3, stripped nut 3 realizes that the right-hand member of cod is decided, and synchromesh gear 4 is installed on the rotor shaft 5, the outside of stripped nut 3.As shown in Figure 2.The present invention moves to stripped nut 3 between cod 2 and the synchromesh gear 4, assembling is to adjust first rotor exhaust end clearance (adjustment process need to be dismantled repeatedly) to technical requirements, carry out immediately cod 2 lockings, and then carry out the Mesh Clearance Adjustment of synchromesh gear 4, synchromesh gear 4 is installed.This assembly process is very succinct, convenient, and process is controlled, has improved simultaneously the head reliability.
The part that the present invention does not relate to all prior art that maybe can adopt same as the prior art is realized.
Claims (3)
1. method that improves the oil free screw compressor reliability, it is characterized in that changing locking nut and the mounting point of synchromesh gear on rotor shaft, locking nut next-door neighbour cod is installed, and the axial force that rotor shaft is subject to is directly delivered on the body by cod, thereby so that synchromesh gear is not subjected to the effect of end thrust in the course of the work, reach the purpose of improving the synchromesh gear operating mode, to prolong its working life, improve the reliability of compressor complete machine.
2. method according to claim 1, it is characterized in that described synchromesh gear comprises the synchronous driving gear that is installed on the male rotor axle and the synchronous driven gear that is installed on the female rotor axle, described locking nut also comprises and is installed on the male rotor axle and is installed in locking nut on the female rotor axle, and described cod also comprises and is installed on the male rotor axle and is installed in cod on the female rotor axle.
3. an oil free screw compressor boss rod is to bearing locking structure, it is characterized in that it mainly is comprised of spacer (1), cod (2), locking nut (3) and synchromesh gear (4), described cod (2) is installed on the rotor shaft (5) that is positioned between spacer (1) and the locking nut (3), and synchromesh gear (4) is installed on the rotor shaft (5), the outside of locking nut (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100299381A CN103062061A (en) | 2013-01-28 | 2013-01-28 | Method for improving reliability of main engine of oil-free screw compressor, and axial bearing locking structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100299381A CN103062061A (en) | 2013-01-28 | 2013-01-28 | Method for improving reliability of main engine of oil-free screw compressor, and axial bearing locking structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103062061A true CN103062061A (en) | 2013-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013100299381A Pending CN103062061A (en) | 2013-01-28 | 2013-01-28 | Method for improving reliability of main engine of oil-free screw compressor, and axial bearing locking structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109707627A (en) * | 2019-02-01 | 2019-05-03 | 宁波鲍斯能源装备股份有限公司 | A kind of water lubrication helical-lobe compressor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03160182A (en) * | 1989-11-17 | 1991-07-10 | Hitachi Ltd | Bearing of compressor |
| CN1512065A (en) * | 1998-09-17 | 2004-07-14 | ������������ʽ���� | Lubricating-free screw compressor |
| JP4638582B2 (en) * | 2000-09-08 | 2011-02-23 | 北越工業株式会社 | Shaft seal structure of oil-free screw compressor |
| CN202560566U (en) * | 2012-02-03 | 2012-11-28 | 贵州中电振华精密机械有限公司 | Screw axial adjustment mechanism of single screw compressor |
| CN203161541U (en) * | 2013-01-28 | 2013-08-28 | 南京压缩机股份有限公司 | Axial bearing locking structure of main machine of oilless screw rod compressor |
-
2013
- 2013-01-28 CN CN2013100299381A patent/CN103062061A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03160182A (en) * | 1989-11-17 | 1991-07-10 | Hitachi Ltd | Bearing of compressor |
| CN1512065A (en) * | 1998-09-17 | 2004-07-14 | ������������ʽ���� | Lubricating-free screw compressor |
| JP4638582B2 (en) * | 2000-09-08 | 2011-02-23 | 北越工業株式会社 | Shaft seal structure of oil-free screw compressor |
| CN202560566U (en) * | 2012-02-03 | 2012-11-28 | 贵州中电振华精密机械有限公司 | Screw axial adjustment mechanism of single screw compressor |
| CN203161541U (en) * | 2013-01-28 | 2013-08-28 | 南京压缩机股份有限公司 | Axial bearing locking structure of main machine of oilless screw rod compressor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109707627A (en) * | 2019-02-01 | 2019-05-03 | 宁波鲍斯能源装备股份有限公司 | A kind of water lubrication helical-lobe compressor |
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Application publication date: 20130424 |
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