CN103878532A - Disassembling device of large interference length fit structure - Google Patents
Disassembling device of large interference length fit structure Download PDFInfo
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- CN103878532A CN103878532A CN201410142937.2A CN201410142937A CN103878532A CN 103878532 A CN103878532 A CN 103878532A CN 201410142937 A CN201410142937 A CN 201410142937A CN 103878532 A CN103878532 A CN 103878532A
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- heating
- support plate
- cooling
- fit structure
- decomposer
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- 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
- B23P11/00—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for
- B23P11/02—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits
- B23P11/025—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits by using heat or cold
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- Mechanical Engineering (AREA)
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Abstract
The invention relates to a disassembling device of a large interference length fit structure. The disassembling device comprises a base 1, a supporting plate 8, a heating mechanism and a cooling mechanism, the supporting plate 8 is arranged on the base 1, and a hole is formed in the supporting plate 8. The heating structure comprises a heating cover 12, and the heating cover 12 is arranged on the supporting plate 8 and covers a bearing 11 to be detached. A cooling pipe 14 of the cooling mechanism is arranged in an inner cavity of a part 10 in a matched mode, and a cooling cavity 15 is formed by the cooling pipe 14 and the inner cavity of the part 10. According to the disassembling device, heating, cooling and disassembling can be carried out at the same time, and the disassembling device has the advantages of being high in using efficiency, large in margin, high in technology expandability, convenient and fast to use, high in disassembling efficiency and scatheless in part.
Description
Technical field
The present invention relates to a kind of decomposer, the decomposer of the long fit structure of especially a kind of large interference.
Background technology
In mechanical field, each parts cooperatively interact, and are modal a kind of modes to reach function application target.In all cooperations, bearing is comparatively common with coordinating of rotating shaft.In use, bearing has guaranteed that rotating shaft stability of rotation, frictional force are little, low in energy consumption, and realizes the effects such as transmitting torque.In order to ensure the function of bearing, need interior ring and the rotating shaft interference fit of bearing.When mounted, by the hot expansibility of each component materials, part is heated, fall the end magnitude of interference or form certain gap value, then assemble.In the time decomposing, be generally to realize by applying the modes such as axial force.But for the long fit structure of some large interference, as the duplex ball bearing of main support zone and coordinating of front axle collar before certain type aero-engine, it coordinates shrink value is-0.031～-0.017, coordinate the about 30mm of segment length, belong to the large long fit structure of interference of typical case, fore bearing is duplex bearing, two interior interannulars only connect by a spring collar, cannot bear large decomposition drawing axial force, cause and decompose difficulty, easily cause because decomposing the unfavorable part injury that causes and even scrap.
Summary of the invention
The object of this invention is to provide a kind of decomposition technique, realize the decomposition of the long fit structure of large interference, reach and decompose the object that difficulty is low, easy to operate, part injury is little.
Concrete technical scheme of the present invention is, the decomposer of the large long fit structure of interference comprises base, support plate, heating arrangements, cooling body, support plate is arranged on base, arranges porosely on support plate, and part can be stuck on the hole of support plate through hole and bearing to be removed; Heating arrangement comprises heating mantles, and heating mantles is arranged on support plate and covers bearing to be removed, and the support plate of heating mantles forms heating chamber, is provided with the heating gate and the ventilating opening that communicate with heating chamber on heating mantles; The cooling tube of cooling body coordinates on the inner chamber that is arranged on part and with the inner chamber of part and forms cooling chamber, is also provided with filler and passage with communicating with cooling cavity on cooling tube.Described support plate is Split type structure and is arranged on bearing, is provided with symmetrical groove on described bearing, and support plate inserts from the groove of both sides; On described part, be provided with pressure head, the inside of heating mantles is lined with heat shield, is provided with blind lid on filler, is provided with blanking cover on passage, heating gate be shaped as taper.
The present invention in use, by decomposer with treat that subassembly assembles, after assembling, be positioned on forcing press platform, the filler filling liquid nitrogen by cooling body, covers blind lid, opens blow vent, carries out cooling by the inner chamber of part to part.Heating gate by heating arrangements carries out Hot-blast Heating; In heating chamber, bearing is carried out around heating, after certain hour, utilize pressure head to exert pressure to part, by the effect of support plate, bearing is decomposed.
The present invention arranges independently liquid filling mouth and air inlet, forms two independently heating and cooling chambeies, carries out heating and cooling operation simultaneously; Utilize the good effect of the through matching part of accessibility that gas and liquid are good to carry out heating and cooling.Design cooling chamber passage, object is that deaeration ensures the maximum adding amount of cooling chamber, and meanwhile, in cooling chamber, the gasification of cooling fluid heat can make inner chamber voltage rise high, and arranging of passage can also be carried out release to cooling chamber; Filler designs blind lid, in case liquid splash causes damage to operator; Heating mantles liner heat shield, reduces the cancellation effect that cold and hot conduction brings when forming heating chamber; Support plate and pressure head for design decomposition, to decompose in heating, in cooling.
The advantageous effect that the present invention has is that the technical scheme adopting is scientific and reasonable, innovation degree is high, and technology degree of reusing is high.In carrying out heating and cooling, configure corresponding platform and forcing press, can under a desirable state, complete decomposition, heating, cooling and decompose can carry out simultaneously, service efficiency is high, nargin is large, technological expansion is strong, if any new demand, can utilize this technology, corresponding modifier structure, can reach instructions for use.This present invention at present repeatedly uses, actual proof, and easy to use, quick, decomposition efficiency is high, part not damaged.
Brief description of the drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is the side view of Fig. 1.
Detailed description of the invention
As shown in the figure, the decomposer of the large long fit structure of interference comprises base 1, support plate 8, heating arrangements, cooling body, support plate 8 is arranged on base 1, arranges porosely on support plate 8, and part 10 can be stuck on the hole of support plate 8 through hole and bearing to be removed 11; Heating arrangement comprises heating mantles 12, and heating mantles 12 is arranged on support plate 8 and covers bearing 11 to be removed, and the support plate 8 of heating mantles 12 forms heating chamber 4, is provided with the heating gate 9 and the ventilating opening 13 that communicate with heating chamber 4 on heating mantles 12; The cooling tube 14 of cooling body coordinates on the inner chamber that is arranged on part 10 and with the inner chamber of part 10 and forms cooling chamber 15, is also provided with the filler 16 and the passage 2 that communicate with cooling chamber 15 on cooling tube 14.Described support plate 8 is for Split type structure and be arranged on bearing 1, is provided with symmetrical groove on described bearing 1, and support plate 8 inserts from the groove of both sides; On described part 10, be provided with pressure head 5, the inside of heating mantles 12 is lined with heat shield 7, is provided with blind lid 3 on filler 16, is provided with blanking cover 6 on passage 2, heating gate 9 be shaped as taper.
Claims (6)
1. the decomposer of the long fit structure of large interference, it is characterized in that, described device comprises base [1], support plate [8], heating arrangements, cooling body, arranges porosely on support plate [8], and part [10] can be stuck on the hole of support plate [8] through hole and bearing to be removed [11]; Heating arrangement comprises heating mantles [12], heating mantles [12] is arranged on support plate [8] and goes up and cover bearing to be removed [11], the support plate [8] of heating mantles [12] forms heating chamber [4], is provided with the heating gate [9] and the ventilating opening [13] that communicate with heating chamber [4] on heating mantles [12]; The cooling tube [14] of cooling body coordinates on the inner chamber that is arranged on part [10] and with the inner chamber of part [10] and forms cooling chamber [15], on cooling tube [14], be also provided with the filler [16] and the passage [2] that communicate with cooling chamber [15], described support plate [8] is Split type structure and is arranged on bearing [1].
2. the decomposer of the long fit structure of a kind of large interference as claimed in claim 1, is characterized in that, on described bearing [1], is provided with symmetrical groove, and support plate [8] inserts from the groove of both sides.
3. the decomposer of the long fit structure of a kind of large interference as claimed in claim 1, is characterized in that, on described part [10], is provided with pressure head [5].
4. the decomposer of the long fit structure of a kind of large interference as claimed in claim 1, is characterized in that, the inside of described heating mantles [12] is lined with heat shield [7].
5. the decomposer of the long fit structure of a kind of large interference as claimed in claim 1, is characterized in that, on described filler [16], is provided with blind lid [3], is provided with blanking cover [6] on passage [2].
6. the decomposer of the long fit structure of a kind of large interference as claimed in claim 1, is characterized in that, described heating gate [9] be shaped as taper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410142937.2A CN103878532A (en) | 2014-04-10 | 2014-04-10 | Disassembling device of large interference length fit structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410142937.2A CN103878532A (en) | 2014-04-10 | 2014-04-10 | Disassembling device of large interference length fit structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103878532A true CN103878532A (en) | 2014-06-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410142937.2A Pending CN103878532A (en) | 2014-04-10 | 2014-04-10 | Disassembling device of large interference length fit structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN103878532A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104816128A (en) * | 2015-05-25 | 2015-08-05 | 南车戚墅堰机车有限公司 | Rotation shaft taper face overhauling technology |
| CN106736239A (en) * | 2015-11-23 | 2017-05-31 | 北京航天试验技术研究所 | A kind of Precise Assembling Method for liquid hydrogen warm area interference fit part |
| CN106736238A (en) * | 2016-12-12 | 2017-05-31 | 中国燃气涡轮研究院 | A kind of decomposition method of elastic conjunction hollow shaft |
| CN112276474A (en) * | 2020-08-31 | 2021-01-29 | 中国船舶重工集团武汉船舶工业有限公司 | Method for assembling shaft hole |
| CN112427880A (en) * | 2020-11-20 | 2021-03-02 | 株洲时代新材料科技股份有限公司 | Method and device for disengaging anti-side-rolling torsion bar sleeved in torsion arm sleeve |
Citations (6)
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|---|---|---|---|---|
| SU515619A1 (en) * | 1974-04-05 | 1976-05-30 | Предприятие П/Я В-2572 | Device for pressing in and pressing out parts like shaft bushing |
| SU1752525A1 (en) * | 1990-10-29 | 1992-08-07 | Ступинский металлургический комбинат | Method of preparing disassembly of pressed couplings |
| CN201175818Y (en) * | 2008-04-15 | 2009-01-07 | 王文贺 | Temperature differential dismounting equipment for shaft bearing |
| CN101462221A (en) * | 2007-12-21 | 2009-06-24 | 广东明阳风电技术有限公司 | Method for disassembling self-aligning roller bearing matched with long shaft |
| CN102848132A (en) * | 2012-09-28 | 2013-01-02 | 太原重工股份有限公司 | Device for assembling outer jacket and inner lining of extrusion container |
| CN203918352U (en) * | 2014-04-11 | 2014-11-05 | 哈尔滨东安发动机（集团）有限公司 | The decomposer of the long fit structure of a kind of large interference |
-
2014
- 2014-04-10 CN CN201410142937.2A patent/CN103878532A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU515619A1 (en) * | 1974-04-05 | 1976-05-30 | Предприятие П/Я В-2572 | Device for pressing in and pressing out parts like shaft bushing |
| SU1752525A1 (en) * | 1990-10-29 | 1992-08-07 | Ступинский металлургический комбинат | Method of preparing disassembly of pressed couplings |
| CN101462221A (en) * | 2007-12-21 | 2009-06-24 | 广东明阳风电技术有限公司 | Method for disassembling self-aligning roller bearing matched with long shaft |
| CN201175818Y (en) * | 2008-04-15 | 2009-01-07 | 王文贺 | Temperature differential dismounting equipment for shaft bearing |
| CN102848132A (en) * | 2012-09-28 | 2013-01-02 | 太原重工股份有限公司 | Device for assembling outer jacket and inner lining of extrusion container |
| CN203918352U (en) * | 2014-04-11 | 2014-11-05 | 哈尔滨东安发动机（集团）有限公司 | The decomposer of the long fit structure of a kind of large interference |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104816128A (en) * | 2015-05-25 | 2015-08-05 | 南车戚墅堰机车有限公司 | Rotation shaft taper face overhauling technology |
| CN106736239A (en) * | 2015-11-23 | 2017-05-31 | 北京航天试验技术研究所 | A kind of Precise Assembling Method for liquid hydrogen warm area interference fit part |
| CN106736238A (en) * | 2016-12-12 | 2017-05-31 | 中国燃气涡轮研究院 | A kind of decomposition method of elastic conjunction hollow shaft |
| CN112276474A (en) * | 2020-08-31 | 2021-01-29 | 中国船舶重工集团武汉船舶工业有限公司 | Method for assembling shaft hole |
| CN112276474B (en) * | 2020-08-31 | 2022-05-13 | 中国船舶重工集团武汉船舶工业有限公司 | Method for assembling shaft hole |
| CN112427880A (en) * | 2020-11-20 | 2021-03-02 | 株洲时代新材料科技股份有限公司 | Method and device for disengaging anti-side-rolling torsion bar sleeved in torsion arm sleeve |
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Application publication date: 20140625 |