CN106736238A - A kind of decomposition method of elastic conjunction hollow shaft - Google Patents
A kind of decomposition method of elastic conjunction hollow shaft Download PDFInfo
- Publication number
- CN106736238A CN106736238A CN201611140529.9A CN201611140529A CN106736238A CN 106736238 A CN106736238 A CN 106736238A CN 201611140529 A CN201611140529 A CN 201611140529A CN 106736238 A CN106736238 A CN 106736238A
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- CN
- China
- Prior art keywords
- hollow shaft
- axle sleeve
- nitrogen
- elastic conjunction
- puller
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/02—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same
- B23P19/025—For detaching only
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
This method belongs to mechanical manufacturing field, and in particular to a kind of decomposition method of elastic conjunction hollow shaft.Methods described includes：By being continually fed into small pressure nitrogen gas to hollow axocoel, local heating is carried out to the rotor band component of axle sleeve 2 using industrial heat gun, nitrogen pressure is rapidly increased simultaneously rapidly rushes nitrogen, then using good lubricant method, the method for finally being completed to be decomposed after elongated hollow axle class elastic conjunction with puller.The operation decomposed after such elongated hollow axle class elastic conjunction is facilitated, production task is effectively completed, the versatility of such process is increased.
Description
Technical field
The invention belongs to mechanical manufacturing field, and in particular to a kind of decomposition method of elastic conjunction hollow shaft.
Background technology
Axle class interference design is widely used in the development process of aero-engine, is assembled by the suitable temperature difference and realized
Axle class and part interference fit, realize that the fastening of axial workpiece is installed.Component after temperature difference assembling in decomposable process, make by machinery
Make so aeronautical manufacture industry in frequently with the decomposition method of puller 4, by being screwed into the stroke of puller 4, decompose interference part.
And in the whole machine project rotor front segment structure of aviation, rotor is with the component of axle sleeve 2 and front axle collar gap
The installation of 0.0215mm to interference 0.0055mm coordinates, and in decomposable process after temperature differential method assembling, pusher dog can only be by rotor
A part is disengaged on band 2 component the past of axle sleeve axle journal, when back segment of the rotor with the component of axle sleeve 2 is disengaged to the annular of preceding axle journal
In groove, whole rotor just loses the certralizing ability of preceding axle journal with the component of axle sleeve 2, and rotor band axle sleeve 2 component can be
Rocked on preceding axle journal.Before causing rotor band axle sleeve 2 component to continue to depart from during axle journal, rotor band axle sleeve 2 component [2] meeting
The step surface in preceding journal collar shape groove is gnawed, causes the rotor band component of axle sleeve 2 to decompose.
Above structure and conventional decomposition mode seriously restrict the part capacity of decomposition, cause the scene that cannot be decomposed to occur,
Whole item destination node is influenceed, or even aviation production task cannot be completed.
The content of the invention
The purpose of the present invention is：For the problem for overcoming original structure and conventional decomposition mode to decompose, the present invention is carried
A kind of decomposition method of elastic conjunction hollow shaft is supplied.Can effectively decompose, be efficiently completed production task.
The technical scheme is that：In order to solve the above-mentioned technical problem, the present invention is by being continually fed into small pressure nitrogen
In gas to the chamber of hollow shaft 1, local heating is carried out to the rotor band component of axle sleeve 2 using industrial heat gun 5, while rapidly increasing
Nitrogen pressure rapidly rushes nitrogen, then using good lubricant method, after finally completing the class elastic conjunction of elongated hollow axle 1 with puller 4
Decompose.Concrete technical scheme is as follows：
A kind of decomposition method of elastic conjunction hollow shaft is provided, is comprised the following steps：There is elastic conjunction in the hollow shaft 1
Axle sleeve 2；Puller 4 is tightened with axle sleeve 2 with pretightning force first；The delivery outlet of nitrogen device 3 is hollow with hollow shaft 1 by pipeline
Chamber connects；By the less aperture of the valve opening of nitrogen device 3 so that the middle cavity of hollow shaft 1 is passed through a small amount of nitrogen；Use temperature
It is arranged on 150 ± 10 DEG C of industrial circumferential uniform heating 5min of the alignment of heat gun 5 axle sleeve 2；Toward in the gap of axle sleeve 2 and hollow shaft 1
Uniform perfusion lubricating oil；The valve opening of increase nitrogen device 3, nitrogen is persistently poured to the middle cavity of hollow shaft 1 speed of having to go to the toilet, anxious
The time that speed is persistently poured is 30s；Axle sleeve 2 is separated with hollow shaft 1 rapidly by puller 4 afterwards.
Beneficial effect：
The present invention by being continually fed into small pressure nitrogen gas to the chamber of hollow shaft 1, using industrial heat gun 5 to rotor band
The component of axle sleeve 2 carries out local heating, while rapidly increasing nitrogen pressure rapidly rushes nitrogen, then using good lubricant method, finally
The method for completing to be decomposed after the class elastic conjunction of elongated hollow axle 1 with puller 4.Facilitate the class elastic conjunction of such elongated hollow axle 1
The operation decomposed afterwards, effectively completes production task (whole project 4,500,000), increased the versatility of such process.
Brief description of the drawings
Fig. 1 is the structure chart of the class elastic conjunction of elongated hollow axle 1；
Fig. 2 is that this method implements assembling schematic diagram；
Wherein 1- hollow shafts, 2- axle sleeves, 3- nitrogen devices, 4- pullers, 5- heat guns
Specific embodiment
The present invention is described in further detail with reference to Figure of description, refers to Fig. 2.
A kind of decomposition method of elastic conjunction hollow shaft is provided, is comprised the following steps：There is elastic conjunction in the hollow shaft 1
Axle sleeve 2；Puller 4 is tightened with axle sleeve 2 with pretightning force first；The delivery outlet of nitrogen device 3 is hollow with hollow shaft 1 by pipeline
Chamber connects；By the less aperture of the valve opening of nitrogen device 3 so that the middle cavity of hollow shaft 1 is passed through a small amount of nitrogen；Use temperature
It is arranged on 150 ± 10 DEG C of industrial circumferential uniform heating 5min of the alignment of heat gun 5 axle sleeve 2；Toward in the gap of axle sleeve 2 and hollow shaft 1
Uniform perfusion lubricating oil；The valve opening of increase nitrogen device 3, nitrogen is persistently poured to the middle cavity of hollow shaft 1 speed of having to go to the toilet, anxious
The time that speed is persistently poured is 30s；Axle sleeve 2 is separated with hollow shaft 1 rapidly by puller 4 afterwards.
Wherein, lubricating oil is irrigated inward in the gap from rotor with the component of axle sleeve 2 [2] with preceding axle journal [3], oil mass is
0.2ml。
The outlet pressure of nitrogen cylinder [6] is set to 1.5 ± 0.1MPa (20 DEG C), forward urgency at axle journal [3] entrance center
Speed rushes nitrogen, duration 30s.While nitrogen is rapidly rushed, gently force in the bar of puller 4 [4], make machine rotor band axle sleeve
2 components [2] slowly rise.When the torque of puller 4 [4] is more than 5N.m, stops force and pull out by force, continue logical nitrogen and heating, continue
Pulled out again after 2min, until rotor completely disengages from the mating surface with preceding axle journal [3] with the component of axle sleeve 2 [2].
Claims (1)
1. a kind of decomposition method of elastic conjunction hollow shaft, comprises the following steps：Elastic conjunction has axle sleeve on the hollow shaft (1)
(2)；Puller (4) is tightened with axle sleeve (2) with pretightning force first；The delivery outlet of nitrogen device (3) is by pipeline and hollow shaft (1)
Middle cavity connection；By the less aperture of valve opening of nitrogen device (3) so that the middle cavity of hollow shaft (1) is passed through on a small quantity
Nitrogen；With temperature setting the circumferential uniform heating 5min of axle sleeve (2) is directed in 150 ± 10 DEG C of industrial heat guns (5)；Toward axle sleeve (2)
With uniform perfusion lubricating oil in the gap of hollow shaft (1)；The valve opening of increase nitrogen device (3), to the hollow of hollow shaft (1)
Nitrogen is rapidly persistently poured in chamber, the time rapidly persistently poured is 30s；It is rapid by axle sleeve (2) and empty by puller (4) afterwards
Heart axle (1) is separated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611140529.9A CN106736238A (en) | 2016-12-12 | 2016-12-12 | A kind of decomposition method of elastic conjunction hollow shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611140529.9A CN106736238A (en) | 2016-12-12 | 2016-12-12 | A kind of decomposition method of elastic conjunction hollow shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106736238A true CN106736238A (en) | 2017-05-31 |
Family
ID=58880257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611140529.9A Pending CN106736238A (en) | 2016-12-12 | 2016-12-12 | A kind of decomposition method of elastic conjunction hollow shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106736238A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111151991A (en) * | 2020-02-26 | 2020-05-15 | 安徽马钢设备检修有限公司 | Part disassembling device and method for connecting gear with high-pressure water pump crankshaft |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3324596A1 (en) * | 1982-07-08 | 1984-01-12 | Air Products and Chemicals, Inc., 18105 Allentown, Pa. | METHOD FOR PRODUCING A PRESS SEAT BETWEEN AN ENTRY AND A RECEIVING PART, AND A DEVICE USED THEREOF |
| US4590656A (en) * | 1985-05-23 | 1986-05-27 | Mg Industries | Tube expander and freezer and method of using same |
| JPH11329703A (en) * | 1998-05-19 | 1999-11-30 | Miyaden:Kk | Work hole induction heating method and its device |
| CN201175818Y (en) * | 2008-04-15 | 2009-01-07 | 王文贺 | Temperature differential dismounting equipment for shaft bearing |
| CN202238988U (en) * | 2011-08-31 | 2012-05-30 | 太原重工股份有限公司 | Device for dismounting inner lining of extrusion container |
| CN103878532A (en) * | 2014-04-10 | 2014-06-25 | 哈尔滨东安发动机（集团）有限公司 | Disassembling device of large interference length fit structure |
| CN104353988A (en) * | 2014-10-19 | 2015-02-18 | 车晋绥 | Cold and hot temperature difference assembled and disassembled gear device |
| CN204504679U (en) * | 2015-03-26 | 2015-07-29 | 中钢集团安徽天源科技股份有限公司 | Roller sleeve of high pressure roller grinder provision for disengagement |
-
2016
- 2016-12-12 CN CN201611140529.9A patent/CN106736238A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3324596A1 (en) * | 1982-07-08 | 1984-01-12 | Air Products and Chemicals, Inc., 18105 Allentown, Pa. | METHOD FOR PRODUCING A PRESS SEAT BETWEEN AN ENTRY AND A RECEIVING PART, AND A DEVICE USED THEREOF |
| US4590656A (en) * | 1985-05-23 | 1986-05-27 | Mg Industries | Tube expander and freezer and method of using same |
| JPH11329703A (en) * | 1998-05-19 | 1999-11-30 | Miyaden:Kk | Work hole induction heating method and its device |
| CN201175818Y (en) * | 2008-04-15 | 2009-01-07 | 王文贺 | Temperature differential dismounting equipment for shaft bearing |
| CN202238988U (en) * | 2011-08-31 | 2012-05-30 | 太原重工股份有限公司 | Device for dismounting inner lining of extrusion container |
| CN103878532A (en) * | 2014-04-10 | 2014-06-25 | 哈尔滨东安发动机（集团）有限公司 | Disassembling device of large interference length fit structure |
| CN104353988A (en) * | 2014-10-19 | 2015-02-18 | 车晋绥 | Cold and hot temperature difference assembled and disassembled gear device |
| CN204504679U (en) * | 2015-03-26 | 2015-07-29 | 中钢集团安徽天源科技股份有限公司 | Roller sleeve of high pressure roller grinder provision for disengagement |
Non-Patent Citations (1)
| Title |
|---|
| 胡忠举等: "《现代制造工程技术实践》", 31 January 2014, 机械工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111151991A (en) * | 2020-02-26 | 2020-05-15 | 安徽马钢设备检修有限公司 | Part disassembling device and method for connecting gear with high-pressure water pump crankshaft |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20170531 |