CN219043864U - Mounting tool for front bearing seat of small aero-engine - Google Patents
Mounting tool for front bearing seat of small aero-engine Download PDFInfo
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- CN219043864U CN219043864U CN202222552154.4U CN202222552154U CN219043864U CN 219043864 U CN219043864 U CN 219043864U CN 202222552154 U CN202222552154 U CN 202222552154U CN 219043864 U CN219043864 U CN 219043864U
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- bearing seat
- front bearing
- screw rod
- matched
- rotor
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Abstract
The utility model relates to a mounting tool for a front bearing seat of a small aero-engine, which comprises the following components: a rotor, a front bearing seat component and a mounting tool; wherein, the installation frock includes: the device comprises a base, a screw, a first pressing sleeve and a rotating rod; the base is connected to the end part of the screw rod; the first pressing sleeve is sleeved on the screw rod; the middle part of the rotating rod is provided with a thread matching part; the rotating rod is matched with the screw rod through the threaded matching part; when the rotor is assembled, the rotor passes through the screw rod and is adaptively placed on the base, and the front bearing seat component passes through the screw rod, so that the bearing inner ring of the front bearing seat component is matched with the front shaft of the rotor; the first pressing sleeve penetrates through the screw rod and is matched with the bearing inner ring of the front bearing seat component; the rotating rod rotates to move downwards, so that the first pressing sleeve presses the bearing inner ring, and the front bearing seat component uniformly and slowly falls.
Description
Technical Field
The utility model relates to the technical field of aeroengines, in particular to a mounting tool for a front bearing seat of a small aeroengine.
Background
When the aircraft engine is assembled with the front bearing seat component of the rotor, the front bearing seat component of the aircraft engine needs to be assembled with the front shaft of the rotor by combining an inner ring of the front bearing seat component and the front shaft of the rotor. At present, when a front bearing seat is assembled, a front bearing seat component is assembled by a knocking mode in a certain small aeroengine. The scheme of the prior rotor assembly front bearing seat is as follows: the rotor component is horizontally placed on a working platform, an aluminum sheet is padded at the bottom, and the front shaft faces upwards; placing a front bearing component on the rotor shaft, and sleeving an inner bearing ring into the front shaft; and (3) selecting an adaptive through hole pressing sleeve to cover the front bearing inner ring, and uniformly knocking the periphery of the pressing sleeve by a hammer to enable the front bearing part to slowly fall to the installation position. However, this approach suffers from a number of drawbacks, such as: placing the rotor component on a working platform, wherein the rotor blade is easy to collide and scratch when the knocking operation is improper; when the assembly of the bearing inner ring is inclined or the knocking force is uneven in the knocking falling process, the bearing inner ring and the shaft are scratched to generate scrap wires; when the inner ring of the bearing is knocked, the bearing balls are subjected to low-frequency high-amplitude knocking vibration, so that the balls are slightly knocked to influence the performance and service life of the bearing. In view of this, the present application is specifically proposed.
Disclosure of Invention
The utility model provides a mounting tool for a front bearing seat of a small aero-engine, which aims to solve the technical problems.
The technical aim of the utility model is realized by the following technical scheme:
a miniature aero-engine front bearing housing installation tooling, comprising:
a rotor, a front bearing seat component and a mounting tool;
wherein, the installation frock includes: the device comprises a base, a screw, a first pressing sleeve and a rotating rod;
the base is connected to the end part of the screw rod;
the first pressing sleeve is sleeved on the screw rod;
the middle part of the rotating rod is provided with a threaded matching part;
the rotating rod is matched with the screw rod through the threaded matching part;
when the rotor is assembled, the rotor passes through the screw rod to be matched with the base, and the front bearing seat component passes through the screw rod to enable the bearing inner ring of the front bearing seat component to be matched with the front shaft of the rotor;
the first pressing sleeve penetrates through the screw rod and is matched with the bearing inner ring of the front bearing seat component;
the rotating rod rotates to move downwards, so that the first pressing sleeve presses the bearing inner ring, and the front bearing seat component uniformly and slowly falls.
Further, the mounting tool further comprises a second pressing sleeve;
the second pressing sleeve is sleeved on the screw rod and is matched between the first pressing sleeve and the threaded matching part of the rotating rod.
Further, the threaded mating portion is a nut.
Further, a protruding part is arranged at the bottom of the base;
the protruding portion is long strip-shaped.
Further, the first press sleeve comprises a first matching part and a second matching part;
the first matching part is matched with the front bearing seat component, and the second matching part is matched with the bottom of the second pressing sleeve.
Further, the second press sleeve comprises a third matching part and a fourth matching part;
the third matching part is matched with the second matching part of the first press sleeve, and the fourth matching part is matched with the threaded matching part.
The beneficial effects of the utility model are as follows:
and the scratch and bump are reduced: compared with knocking installation, the tool is pressed into the bearing inner ring to be stressed uniformly, so that the risk of scraping and bumping balls caused by uneven knocking stress is reduced;
work efficiency is improved: compared with knocking installation, the tool is used for installing, the rotating rod only needs to be rotated according to the requirement, the front bearing component does not need to be observed to incline or not in the falling process during downward rotation, the working steps are simplified, and the working efficiency is effectively improved;
the use cost of the tool is lower: the existing tool is simple in structure, smaller in size, less in material consumption, more convenient to use and capable of reducing the use cost of the tool.
Drawings
FIG. 1 is a schematic structural view of the installation tool during assembly;
fig. 2 is a schematic structural diagram of the installation tool.
In the figure: a rotor 1; a front bearing housing part 2; installing a tool 3; a base 31; a screw 32; a first press sleeve 33; a rotating lever 34; a second press sleeve 35; a boss 311; a screw fitting portion 341; a first fitting portion 331; a second fitting portion 332; a third fitting portion 351; fourth mating portion 352.
Detailed Description
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
The objects, technical solutions and advantages of the present utility model will become more apparent by the following detailed description of the present utility model with reference to the accompanying drawings. It should be understood that the description is only illustrative and is not intended to limit the scope of the utility model. In addition, in the following description, descriptions of well-known structures and techniques are omitted so as not to unnecessarily obscure the present utility model.
As shown in fig. 1-2, a front bearing seat installation tool for a small-sized aero-engine includes:
the device comprises a rotor 1, a front bearing seat part 2 and an installation tool 3;
wherein, installation frock 3 includes: the device comprises a base 31, a screw 32, a first pressing sleeve 33 and a rotating rod 34;
the base 31 is connected to the end of the screw 32;
the first pressing sleeve 33 is sleeved on the screw rod 32;
the middle part of the rotating rod 34 is provided with a thread matching part 341;
the rotating rod 34 is engaged with the screw 32 through the screw engagement portion 341;
when the rotor 1 is assembled, the rotor is adaptively placed on the base 31 through the screw rod 32, and the front bearing seat part 2 passes through the screw rod 32, so that the bearing inner ring of the front bearing seat part 2 is matched with the front shaft of the rotor 1;
the first pressing sleeve 33 passes through the screw rod 32 and is matched with the bearing inner ring of the front bearing seat part 2;
the rotating rod 34 rotates downwards, so that the first pressing sleeve 33 presses the bearing inner ring, and the front bearing seat part 2 uniformly and slowly falls down.
Specifically, during assembly, the base 31 is fixed to the work platform by means of the vice; the rotor 1 is vertically placed on the base 31 through the screw 32. Simultaneously, the front bearing seat part 2 is placed on the front shaft of the rotor 1 through the screw rod 32, so that the bearing inner ring in the front bearing seat part 2 is matched with the front shaft of the rotor 1; pressing 33 the first press sleeve against the bearing inner ring; rotating the rotating rod 34 to enable the rotating rod to rotate downwards to drive the first pressing sleeve 33 to press the bearing inner ring, so that the front bearing seat part 2 uniformly and slowly falls; when the front bearing housing part 2 is completely lowered to the mounting position, the rotating rod 34 is rotated upward and the first press sleeve 33 is taken out. This frock can reduce and cut and rub and collide with: compared with knocking installation, the tool is pressed into the bearing inner ring to be stressed uniformly, so that the risk of scratch and ball collision caused by nonuniform knocking stress is reduced.
In some embodiments, the installation fixture 3 further comprises a second press sleeve 35;
the second press sleeve 35 is fitted over the screw 32 and is fitted between the first press sleeve 33 and the screw fitting portion 341 of the rotating lever 34.
With the above technical solution, the second press sleeve 35 is fitted between the first press sleeve 33 and the threaded fitting portion 341 of the rotating rod 34, so as to reduce the lowering height of the rotating rod 34.
In some embodiments, the threaded mating portion 341 is a nut.
With the above technical solution, the rotating rod 34 can be obtained by welding the struts on both sides of the nut.
In some embodiments, the bottom of the base 31 is provided with a boss 311;
the protruding portion 311 has an elongated shape.
By adopting the technical scheme, the base 31 can be conveniently fixed on the working platform by the aid of the protruding portions 311, and when the base 31 is fixed, the protruding portions 311 are only required to be clamped.
In some embodiments, the first press sleeve 33 includes a first mating portion 331 and a second mating portion 332;
the first fitting portion 331 is fitted with the front bearing housing member 2, and the second fitting portion 332 is fitted with the bottom of the second press sleeve 35.
With the above technical solution, the first fitting portion 331 is adapted to the front bearing seat member 2 in size and diameter, and the second fitting portion 332 forms a wider fitting surface that can be better adapted to the bottom of the second press sleeve 35.
In some embodiments, the second press sleeve 35 includes a third mating portion 351 and a fourth mating portion 352;
the third engaging portion 351 is engaged with the second engaging portion 332 of the first press sleeve 33, and the fourth engaging portion 352 is engaged with the screw engaging portion 341.
With the above technical solution, preferably, the diameter of the third mating portion 351 should be smaller than that of the first press sleeve 33, so that the third mating portion 351 can be stably pressed on the second mating portion 332 of the first press sleeve 33, and the fourth mating portion 352 also forms a wider mating surface to be better adapted to the threaded mating portion 341.
It is to be understood that the above-described embodiments of the present utility model are merely illustrative of or explanation of the principles of the present utility model and are in no way limiting of the utility model. Accordingly, any modification, equivalent replacement, improvement, etc. made without departing from the spirit and scope of the present utility model should be included in the scope of the present utility model. Furthermore, the appended claims are intended to cover all such changes and modifications that fall within the scope and boundary of the appended claims, or equivalents of such scope and boundary.
Claims (6)
1. Small-size aeroengine front bearing block installation frock, its characterized in that includes:
the device comprises a rotor (1), a front bearing seat component (2) and an installation tool (3);
wherein, installation frock (3) include: the device comprises a base (31), a screw (32), a first pressing sleeve (33) and a rotating rod (34);
the base (31) is connected to the end of the screw (32);
the first pressing sleeve (33) is sleeved on the screw rod (32);
the middle part of the rotating rod (34) is provided with a threaded matching part (341);
the rotating rod (34) is matched with the screw rod (32) through the threaded matching part (341);
when the rotor (1) is assembled, the rotor is matched and placed on the base (31) through the screw rod (32), the front bearing seat component (2) passes through the screw rod (32), and the bearing inner ring of the front bearing seat component (2) is matched with the front shaft of the rotor (1);
the first pressing sleeve (33) passes through the screw rod (32) and is matched with the bearing inner ring of the front bearing seat component (2);
the rotating rod (34) rotates downwards to enable the first pressing sleeve (33) to press the bearing inner ring, so that the front bearing seat component (2) uniformly and slowly falls down.
2. The mounting fixture for a front bearing seat of a small-sized aero-engine according to claim 1, wherein:
the mounting tool (3) further comprises a second pressing sleeve (35);
the second press sleeve (35) is sleeved on the screw rod (32) and is matched between the first press sleeve (33) and the threaded matching part (341) of the rotating rod (34).
3. The mounting fixture for a front bearing seat of a small-sized aero-engine according to claim 1, wherein:
the threaded fitting portion (341) is a nut.
4. The mounting fixture for a front bearing seat of a small-sized aero-engine according to claim 1, wherein:
the bottom of the base (31) is provided with a protruding part (311);
the protruding part (311) is in a strip shape.
5. The mounting fixture for a front bearing seat of a small-sized aero-engine according to claim 2, wherein:
the first press sleeve (33) comprises a first matching part (331) and a second matching part (332);
the first matching part (331) is matched with the front bearing seat component (2), and the second matching part (332) is matched with the bottom of the second pressing sleeve (35).
6. The mounting fixture for a front bearing seat of a small-sized aero-engine according to claim 5, wherein:
the second press sleeve (35) comprises a third matching part (351) and a fourth matching part (352);
the third mating portion (351) is mated with the second mating portion (332) of the first press sleeve (33), and the fourth mating portion (352) is mated with the threaded mating portion (341).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222552154.4U CN219043864U (en) | 2022-09-26 | 2022-09-26 | Mounting tool for front bearing seat of small aero-engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222552154.4U CN219043864U (en) | 2022-09-26 | 2022-09-26 | Mounting tool for front bearing seat of small aero-engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219043864U true CN219043864U (en) | 2023-05-19 |
Family
ID=86319716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222552154.4U Active CN219043864U (en) | 2022-09-26 | 2022-09-26 | Mounting tool for front bearing seat of small aero-engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219043864U (en) |
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2022
- 2022-09-26 CN CN202222552154.4U patent/CN219043864U/en active Active
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