CN211805898U - Mixed flow turbocharger shaft sleeve dismounting tool - Google Patents
Mixed flow turbocharger shaft sleeve dismounting tool Download PDFInfo
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- CN211805898U CN211805898U CN202020485893.4U CN202020485893U CN211805898U CN 211805898 U CN211805898 U CN 211805898U CN 202020485893 U CN202020485893 U CN 202020485893U CN 211805898 U CN211805898 U CN 211805898U
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Abstract
The utility model discloses a mixed flow turbo charger axle sleeve extracting tool, dismouting axle sleeve process is steady, safe, reliable, 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 utility model relates to a turbo charger technical field especially relates to a mixed flow turbo charger axle sleeve extracting tool.
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.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art not enough, provide a mixed flow turbo charger axle sleeve extracting tool, this extracting tool effectively guarantees can not harm the machined surface precision of axle sleeve at the in-process of dismouting axle sleeve, the cooperation precision of protection axle sleeve and main shaft, dismouting axle sleeve process is steady, safe, reliable, convenient.
The purpose of the utility model is realized like this:
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.
Since the technical scheme is used, the utility model discloses following beneficial effect has:
adopt plane thrust bearing as the utility model discloses a core component has guaranteed that the process of dismantling the axle sleeve can steadily go on, and the axle sleeve atress is even, and relative displacement can not take place for the part that contacts with the axle sleeve, has avoided main shaft and axle sleeve to pull galling and axle sleeve and has installed and removed the friction of instrument fitting surface and produce the mar, reduces the phenomenon of the precision of the machined surface of part.
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 details may be made therein without departing from the scope of the invention as defined by the appended claims.
Claims (5)
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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020485893.4U CN211805898U (en) | 2020-04-07 | 2020-04-07 | Mixed flow turbocharger shaft sleeve dismounting tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020485893.4U CN211805898U (en) | 2020-04-07 | 2020-04-07 | Mixed flow turbocharger shaft sleeve dismounting tool |
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| Publication Number | Publication Date |
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| CN211805898U true CN211805898U (en) | 2020-10-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020485893.4U Active CN211805898U (en) | 2020-04-07 | 2020-04-07 | Mixed flow turbocharger shaft sleeve dismounting tool |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111300334A (en) * | 2020-04-07 | 2020-06-19 | 重庆江增船舶重工有限公司 | Mixed flow turbocharger shaft sleeve dismounting tool and method |
-
2020
- 2020-04-07 CN CN202020485893.4U patent/CN211805898U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111300334A (en) * | 2020-04-07 | 2020-06-19 | 重庆江增船舶重工有限公司 | Mixed flow turbocharger shaft sleeve dismounting tool and method |
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