CN111300334A - Mixed flow turbocharger shaft sleeve dismounting tool and method - Google Patents
Mixed flow turbocharger shaft sleeve dismounting tool and method Download PDFInfo
- Publication number
- CN111300334A CN111300334A CN202010263236.XA CN202010263236A CN111300334A CN 111300334 A CN111300334 A CN 111300334A CN 202010263236 A CN202010263236 A CN 202010263236A CN 111300334 A CN111300334 A CN 111300334A
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- pull
- shaft sleeve
- tool
- tooling
- thrust bearing
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- 238000000034 method Methods 0.000 title claims abstract description 18
- 230000002093 peripheral effect Effects 0.000 claims abstract description 6
- 238000009434 installation Methods 0.000 claims description 16
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
- B25B27/06—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting or withdrawing sleeves or bearing races
- B25B27/062—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting or withdrawing sleeves or bearing races using screws
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mounting Of Bearings Or Others (AREA)
Abstract
The invention discloses a mixed flow turbocharger shaft sleeve dismounting tool and a method, and the shaft sleeve dismounting process is stable, safe, reliable and convenient. The method comprises the following steps: the circumferential surface of the axial positioning rod is provided with external threads, the outer side end of the axial positioning rod is provided with an inner circumferential positioning head, and the inner side end of the axial positioning rod is provided with an internal thread sleeve; pulling a tooling nut piece, wherein an inner threaded hole is axially formed in the tooling nut piece, a small-diameter section of the outer peripheral surface of the tooling nut piece is an outer peripheral positioning head, a middle-diameter section is a retainer ring mounting space, a large-diameter section is a bearing mounting space, and a limiting disc is arranged at the end part of the large-diameter section; the pull tooling thrust bearing and the pull tooling retainer ring are matched with the limiting disc to limit the axial two ends of the pull tooling thrust bearing; the outer wall of the outer end of the pull shaft sleeve is provided with an outer snap ring, and the inner wall of the inner end of the pull shaft sleeve is provided with an inner snap ring; and the pulling tool locking sleeve is sleeved on the two half cylinders of the pulling shaft sleeve, so that the two half cylinders are spliced into the integral pulling shaft sleeve.
Description
Technical Field
The invention relates to the technical field of turbochargers, in particular to a mixed flow turbocharger shaft sleeve dismounting tool and a method.
Background
The turbocharger is a matching part of a typical diesel engine, and can work together with the diesel engine, so that the output power of the diesel engine can be effectively improved. The marine supercharger is divided into a radial/mixed flow supercharger and an axial flow supercharger according to different air inlet modes. The two types of superchargers have great difference due to different structures, in the prior art, in the process of disassembling and assembling the shaft sleeve of the mixed flow supercharger, the stress of the shaft sleeve is uneven, the phenomenon that the main shaft and the shaft sleeve are strained and roughened easily occurs, the matching surface of the shaft sleeve and an assembling and disassembling tool is rubbed to generate scratches, and the precision of the processing surface of a part is reduced; repeated assembly and disassembly of the shaft sleeve can reduce the assembly precision of the shaft sleeve and the main shaft and reduce the roughness of an assembly surface, thereby increasing the risk of the turbocharger in the running process and reducing the reliability of the turbocharger.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a mixed flow turbocharger shaft sleeve dismounting tool and a method.
The purpose of the invention is realized as follows:
a mixed flow turbocharger shaft sleeve removal tool, comprising:
the axial positioning rod is provided with external threads on the circumferential surface, an inner circumferential positioning head is arranged at the outer side end of the axial positioning rod and used for circumferentially positioning the axial positioning rod, and an internal thread sleeve is arranged at the inner side end of the axial positioning rod and used for being matched and fixed with a main shaft thread of the mixed flow turbocharger;
the tool nut pulling device comprises a tool nut pulling piece, a positioning rod and a positioning rod, wherein an inner threaded hole is formed in the tool nut pulling piece in the axial direction and is used for being in threaded fit with the peripheral surface of the positioning rod in the axial direction, the outer periphery of the tool nut pulling piece is in a stepped shape with the diameter increasing from outside to inside, the small-diameter section is an outer peripheral positioning head, the middle-diameter section is a check ring installation space, the large-diameter section is a bearing installation space, and a limiting disc is arranged at the end part of the large-diameter section;
the pulling tool thrust bearing is used for being sleeved on the bearing installation space;
the pull tooling retainer ring is sleeved in the retainer ring installation space, is fixed on the step surface of the middle-diameter section through a screw, has an outer diameter larger than that of the middle-diameter section and smaller than that of the pull tooling thrust bearing, is matched with the limiting disc, and is used for limiting the two axial ends of the pull tooling thrust bearing;
the pull shaft sleeve comprises two half cylinders symmetrically cut along the axial direction, is used for being sleeved on a main shaft of a pull tooling nut piece, a pull tooling thrust bearing and a mixed flow turbocharger, and is provided with an outer snap ring on the outer wall of the outer end;
and the pulling tool locking sleeve is sleeved on the two half cylinders of the pulling shaft sleeve, so that the two half cylinders are spliced into the integral pulling shaft sleeve.
Preferably, the inner circumferential positioning head and the outer circumferential positioning head are both regular hexagon structures and are used for being matched with a wrench to perform circumferential positioning.
Preferably, an axial movement space of the pull tooling thrust bearing is reserved between the limiting disc and the pull tooling retainer ring.
Preferably, the pull tooling nut piece is provided with an inner hole for axially yielding the inner thread sleeve.
Preferably, the outer wall of the inner end of the pull shaft sleeve is provided with a limiting ring for axially limiting the pull tool locking sleeve.
A method for disassembling a mixed flow turbocharger shaft sleeve comprises the following steps:
s1, mounting and dismounting tools;
s2, detaching the shaft sleeve:
an inner circumferential positioning head of the axial positioning rod is circumferentially fixed by a wrench, and an outer circumferential positioning head of the pull tool nut piece is screwed by the wrench to move the pull tool nut piece outwards, so that the pull tool thrust bearing and the pull shaft sleeve drive the shaft sleeve to move outwards, and the purpose of disassembling the shaft sleeve is achieved.
Preferably, the mounting method of the removal tool comprises the steps of:
s1.1: installing the pull tooling thrust bearing on a bearing installation space of a pull tooling nut member, and fixing a pull tooling check ring on a check ring installation space of the pull tooling nut member to limit the two axial ends of the pull tooling thrust bearing;
s1.2: screwing an inner circumferential positioning head of the axial positioning rod by using a wrench, and fixing the axial positioning rod on a main shaft of the mixed flow turbocharger in a threaded fit manner;
s1.3: taking the pull tooling nut piece installed in the middle of the step 1.1, installing the pull tooling nut piece on the axial positioning rod fixed in the step S1.2 in a threaded fit manner, and screwing the pull tooling nut piece to an inner limit position;
s1.4: the pull shaft sleeve is buckled and sleeved on the pull tool nut piece, the pull tool thrust bearing and a shaft sleeve on the main shaft, so that an outer snap ring of the pull shaft sleeve axially limits the outer end of the pull tool thrust bearing, and an inner snap ring of the pull shaft sleeve is clamped with the shaft sleeve on the main shaft;
s1.5: the pull tool locking sleeve is sleeved on the pull shaft sleeve, and the pull shaft sleeve is guaranteed to be always in a buckling state.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
the plane thrust bearing is used as a core component of the invention, so that the process of disassembling the shaft sleeve can be carried out stably, the stress of the shaft sleeve is uniform, parts in contact with the shaft sleeve cannot generate relative displacement, the phenomena that the main shaft and the shaft sleeve are strained and roughened, the shaft sleeve and the matching surface of an assembling and disassembling tool rub to generate scratches and the precision of the processing surface of the parts is reduced are avoided.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the axial positioning rod of FIG. 1;
FIG. 3 is a schematic structural view of the pull tooling nut member of FIG. 1;
FIG. 4 is a schematic view of the sleeve of the pull sleeve of FIG. 1;
fig. 5 is a schematic structural view of the pull tool locking sleeve of fig. 1.
Reference numerals
In the attached drawing, 1-an axial positioning rod, 1 a-a hexagonal head structure, 1 b-an external thread, 1 c-an internal thread sleeve, 2-a pulling tool nut component, 2 a-an external circumferential positioning head, 2 b-an internal thread hole, 2 c-a retainer ring threaded hole, 2 d-a pulling tool thrust bearing installation end surface, 2 e-an inner hole for axially yielding an internal thread sleeve, 3-an internal hexagonal screw I, 4-a pulling tool retainer ring, 5-a pulling tool thrust bearing, 6-a pulling tool locking sleeve, 7-a pulling shaft sleeve, 7 a-a pulling tool thrust bearing matching end surface, 7 b-a pulling shaft sleeve outer surface, 7 c-a shaft sleeve matching end surface, 7 d-a limiting ring, 8-a shaft sleeve, 9-a thrust block and 10-a main shaft.
Detailed Description
Referring to fig. 1-5, the mixed flow turbocharger shaft sleeve dismounting tool is composed of an axial positioning rod 1, a pull tool nut member 2, a socket head cap screw i 3, a pull tool retainer ring 4, a pull tool thrust bearing 5, a pull tool locking sleeve 6, a pull shaft sleeve 7, a shaft sleeve 8, a thrust block 9 and a main shaft 10.
The installation process of the shaft sleeve pulling tool is as follows:
step 1: the method comprises the following steps that a pull tooling thrust bearing 5 is installed on a pull tooling thrust bearing installation end face 2d (a bearing installation space), then an inner hexagonal screw I3 is screwed down to fix a pull tooling retainer ring 4 on a pull tooling nut member 2 (a retainer ring installation space), the pull tooling thrust bearing 5 is arranged between the pull tooling retainer ring 4 and the pull tooling nut member 2 (a limiting disc), the pull tooling thrust bearing 5 has a small axial movement space, and the pull tooling thrust bearing 5 is guaranteed to be capable of radially rotating in the process of disassembling a shaft sleeve 8;
step 2: an axial positioning rod 1 is screwed on a main shaft 10 in a matching way by a spanner matching with an axial positioning rod hexagon head structure 1 a;
and step 3: screwing and installing the nut part of the pulling tool installed in the middle of the step 1 on the axial positioning rod 1 until the nut part is close to the limit position of the turbine shaft;
and 4, step 4: buckling a pull shaft sleeve 7 on the end surface of a pull tooling thrust bearing 5 and the end surface of a shaft sleeve 8;
and 5: the pull tool locking sleeve 6 is arranged on the pull shaft sleeve 7 and slides to the limiting ring 7d, so that the pull shaft sleeve 7 is always in a buckling state.
The shaft sleeve pulling tool is used for disassembling the shaft sleeve as follows:
when the shaft sleeve is disassembled by the shaft sleeve pulling tool, the axial positioning rod 1 is fixed by a wrench, the nut piece 2 of the pulling tool is screwed by another wrench to move in the direction away from the main shaft 10, and the shaft sleeve 8 is driven to move by the thrust bearing 5 of the pulling tool and the sleeve 7 of the pulling shaft, so that the purpose of disassembling the shaft sleeve is achieved.
When the pull tooling thrust bearing 5 is twisted and rotated by the pull tooling nut piece 2, the pull tooling thrust bearing 5 and the pull tooling nut piece matching surface 2d rotate along with the pull tooling nut piece 2, under the action of a middle ball of the pull tooling thrust bearing, the matching end surface of the pull tooling thrust bearing 5 and the pull shaft sleeve 7 cannot rotate, so that the pull shaft sleeve 7 and the shaft sleeve 8 cannot move radially when moving axially, the mutual friction between the pull shaft sleeve 7 and the shaft sleeve 8 end surface and between the pull shaft sleeve 7 and the pull tooling nut piece 2 is avoided, the phenomenon that the shaft sleeve 8 and a main shaft 10 are scratched or pulled and roughened is avoided, and the process of pulling the shaft sleeve can be carried out stably.
Finally, it is noted that the above-mentioned preferred embodiments illustrate rather than limit the invention, and that, although the invention has been described in detail with reference to the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the invention as defined by the appended claims.
Claims (7)
1. The utility model provides a mixed flow turbo charger axle sleeve extracting tool which characterized in that includes:
the axial positioning rod is provided with external threads on the circumferential surface, an inner circumferential positioning head is arranged at the outer side end of the axial positioning rod and used for circumferentially positioning the axial positioning rod, and an internal thread sleeve is arranged at the inner side end of the axial positioning rod and used for being matched and fixed with a main shaft thread of the mixed flow turbocharger;
the tool nut pulling device comprises a tool nut pulling piece, a positioning rod and a positioning rod, wherein an inner threaded hole is formed in the tool nut pulling piece in the axial direction and is used for being in threaded fit with the peripheral surface of the positioning rod in the axial direction, the outer periphery of the tool nut pulling piece is in a stepped shape with the diameter increasing from outside to inside, the small-diameter section is an outer peripheral positioning head, the middle-diameter section is a check ring installation space, the large-diameter section is a bearing installation space, and a limiting disc is arranged at the end part of the large-diameter section;
the pulling tool thrust bearing is used for being sleeved on the bearing installation space;
the pull tooling retainer ring is sleeved in the retainer ring installation space, is fixed on the step surface of the middle-diameter section through a screw, has an outer diameter larger than that of the middle-diameter section and smaller than that of the pull tooling thrust bearing, is matched with the limiting disc, and is used for limiting the two axial ends of the pull tooling thrust bearing;
the pull shaft sleeve comprises two half cylinders symmetrically cut along the axial direction, is used for being sleeved on a main shaft of a pull tooling nut piece, a pull tooling thrust bearing and a mixed flow turbocharger, and is provided with an outer snap ring on the outer wall of the outer end;
and the pulling tool locking sleeve is sleeved on the two half cylinders of the pulling shaft sleeve, so that the two half cylinders are spliced into the integral pulling shaft sleeve.
2. The mixed flow turbocharger shaft sleeve dismounting tool according to claim 1, wherein the inner circumferential positioning head and the outer circumferential positioning head are both regular hexagonal structures and are used for circumferential positioning in cooperation with a wrench.
3. The mixed flow turbocharger shaft sleeve dismounting tool according to claim 1, characterized in that an axial movement space of the pull fixture thrust bearing is reserved between the limiting disc and the pull fixture retainer ring.
4. The mixed flow turbocharger shaft sleeve dismounting tool according to claim 1, wherein an inner hole for axially yielding the inner threaded sleeve is formed in the pulling tool nut member.
5. The mixed flow turbocharger shaft sleeve dismounting tool according to claim 1, wherein a limiting ring is arranged on the outer wall of the inner end of the pull shaft sleeve and used for axially limiting the pull tool locking sleeve.
6. A method for disassembling a shaft sleeve of a mixed flow turbocharger is characterized by comprising the following steps:
s1, mounting and dismounting tools;
s2, detaching the shaft sleeve:
an inner circumferential positioning head of the axial positioning rod is circumferentially fixed by a wrench, and an outer circumferential positioning head of the pull tool nut piece is screwed by the wrench to move the pull tool nut piece outwards, so that the pull tool thrust bearing and the pull shaft sleeve drive the shaft sleeve to move outwards, and the purpose of disassembling the shaft sleeve is achieved.
7. The method for dismounting the shaft sleeve of the mixed flow turbocharger as claimed in the claim, wherein the mounting method of the dismounting tool comprises the following steps:
s1.1: installing the pull tooling thrust bearing on a bearing installation space of a pull tooling nut member, and fixing a pull tooling check ring on a check ring installation space of the pull tooling nut member to limit the two axial ends of the pull tooling thrust bearing;
s1.2: screwing an inner circumferential positioning head of the axial positioning rod by using a wrench, and fixing the axial positioning rod on a main shaft of the mixed flow turbocharger in a threaded fit manner;
s1.3: taking the pull tooling nut piece installed in the middle of the step 1.1, installing the pull tooling nut piece on the axial positioning rod fixed in the step S1.2 in a threaded fit manner, and screwing the pull tooling nut piece to an inner limit position;
s1.4: the pull shaft sleeve is buckled and sleeved on the pull tool nut piece, the pull tool thrust bearing and a shaft sleeve on the main shaft, so that an outer snap ring of the pull shaft sleeve axially limits the outer end of the pull tool thrust bearing, and an inner snap ring of the pull shaft sleeve is clamped with the shaft sleeve on the main shaft;
s1.5: the pull tool locking sleeve is sleeved on the pull shaft sleeve, and the pull shaft sleeve is guaranteed to be always in a buckling state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010263236.XA CN111300334A (en) | 2020-04-07 | 2020-04-07 | Mixed flow turbocharger shaft sleeve dismounting tool and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010263236.XA CN111300334A (en) | 2020-04-07 | 2020-04-07 | Mixed flow turbocharger shaft sleeve dismounting tool and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111300334A true CN111300334A (en) | 2020-06-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010263236.XA Pending CN111300334A (en) | 2020-04-07 | 2020-04-07 | Mixed flow turbocharger shaft sleeve dismounting tool and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111300334A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111890304A (en) * | 2020-08-12 | 2020-11-06 | 博深股份有限公司 | Bearing dismounting tool |
| CN114643555A (en) * | 2020-12-21 | 2022-06-21 | 航天科工惯性技术有限公司 | Inner magnetic steel disassembling and assembling tool, inner magnetic steel assembling method and inner magnetic steel disassembling method |
| CN114932524A (en) * | 2022-06-06 | 2022-08-23 | 重庆江增船舶重工有限公司 | Mixed flow turbocharger rotor dismounting tool and method |
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| DE29820389U1 (en) * | 1998-11-05 | 1999-12-09 | Abb Daimler Benz Transp | Device for pressing out hook bushings or the like. |
| CN1504298A (en) * | 2002-11-29 | 2004-06-16 | 上海神模电气有限公司 | Rapid bearing lifter |
| CN2787389Y (en) * | 2005-04-24 | 2006-06-14 | 秦永刚 | Bearing holder |
| CN203495527U (en) * | 2013-09-28 | 2014-03-26 | 香河港龙汽车配件制造有限公司 | Automobile axle sleeve installation device |
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| CN205254895U (en) * | 2015-12-16 | 2016-05-25 | 鹤壁汽车工程职业学院 | Vehicle air conditioner compressor electromagnetic clutch dismantles pulloverly |
| CN207858744U (en) * | 2017-09-26 | 2018-09-14 | 海航航空技术股份有限公司 | APU fore bearing tool components |
| CN208697327U (en) * | 2018-09-03 | 2019-04-05 | 北京中戎华泰科技开发有限公司 | A kind of bearing outer ring disassembling fixture |
| CN211805898U (en) * | 2020-04-07 | 2020-10-30 | 重庆江增船舶重工有限公司 | Mixed flow turbocharger shaft sleeve dismounting tool |
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2020
- 2020-04-07 CN CN202010263236.XA patent/CN111300334A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86101105A (en) * | 1986-02-07 | 1986-07-16 | 中国石油化工总公司长岭炼油厂 | Shaft bearing replacer |
| JPH0585567U (en) * | 1991-05-22 | 1993-11-19 | 一義 佐藤 | Gearpooler |
| DE29820389U1 (en) * | 1998-11-05 | 1999-12-09 | Abb Daimler Benz Transp | Device for pressing out hook bushings or the like. |
| CN1504298A (en) * | 2002-11-29 | 2004-06-16 | 上海神模电气有限公司 | Rapid bearing lifter |
| CN2787389Y (en) * | 2005-04-24 | 2006-06-14 | 秦永刚 | Bearing holder |
| CN203495527U (en) * | 2013-09-28 | 2014-03-26 | 香河港龙汽车配件制造有限公司 | Automobile axle sleeve installation device |
| CN203956856U (en) * | 2014-07-22 | 2014-11-26 | 吴卫华 | The provision for disengagement of a kind of semiaxis and bearing disassembling device and bearing outer ring |
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| CN208697327U (en) * | 2018-09-03 | 2019-04-05 | 北京中戎华泰科技开发有限公司 | A kind of bearing outer ring disassembling fixture |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111890304A (en) * | 2020-08-12 | 2020-11-06 | 博深股份有限公司 | Bearing dismounting tool |
| CN114643555A (en) * | 2020-12-21 | 2022-06-21 | 航天科工惯性技术有限公司 | Inner magnetic steel disassembling and assembling tool, inner magnetic steel assembling method and inner magnetic steel disassembling method |
| CN114932524A (en) * | 2022-06-06 | 2022-08-23 | 重庆江增船舶重工有限公司 | Mixed flow turbocharger rotor dismounting tool and method |
| CN114932524B (en) * | 2022-06-06 | 2023-10-03 | 重庆江增船舶重工有限公司 | Tool and method for disassembling rotor of mixed-flow turbocharger |
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