CN212351863U - Supporting seat clamping tool of aeroengine bearing - Google Patents

Abstract

The utility model provides a support seat clamping tool of an aeroengine bearing, which comprises a fixed seat, wherein the fixed seat is provided with a downward bulge, the position of the upper end surface of the fixed seat corresponding to the bulge is provided with a plurality of bar-shaped grooves, the bulge is provided with a plurality of guide holes leading from the outer diameter of the fixed seat to the inside of the bulge, and each guide hole is communicated with the corresponding bar-shaped groove in the corresponding bulge; each hook block is movably arranged in the corresponding guide hole; one end of each screw rod is combined with the corresponding hook block through the corresponding strip-shaped groove, and the other end of each screw rod is exposed out of the corresponding strip-shaped groove; and the handle is arranged on the fixed seat. The utility model discloses convenient operation can improve the convenience of dark intracavity part installation to instrument simple structure, low in production cost.

Description

Supporting seat clamping tool of aeroengine bearing

Technical Field

The utility model relates to an engine assembly especially relates to an aeroengine bearing's supporting seat clamping tools.

Background

The Bearing (Bearing) is an important component of an aeroengine (Aero-engine), and can be generally divided into an inner ring and an outer ring, wherein the inner ring is fixed on a rotating shaft of an engine rotor, and the outer ring is fixed in a Bearing seat of a stator. As shown in fig. 1a and 1b, in the development of a front bearing outer ring connection structure of an engine, a bearing outer ring 13 (including rolling elements) is mounted in an elastic support base 12 in advance, and then is integrally assembled with the elastic support base 12 into a bearing seat of an outer casing 11. The cavity formed by the outer casing 11 is deep, so that the mounting difficulty is high by hands.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides an aeroengine bearing's supporting seat clamping tools can be applied to the bearing outer ring along with the assembly of elastic support seat in aeroengine case deep cavity, reduces the installation degree of difficulty, improves assembly efficiency.

The utility model discloses an aeroengine bearing's supporting seat clamping tools includes: the fixing seat is provided with a downward bulge, a plurality of strip-shaped grooves are formed in the upper end face of the fixing seat and correspond to the bulge, a plurality of guide holes leading into the bulge from the outside of the fixing seat in the radial direction are formed in the bulge, and each guide hole is communicated with the corresponding strip-shaped groove in the corresponding bulge; each hook block is movably arranged in the corresponding guide hole; one end of each screw rod is combined with the corresponding hook block through the corresponding strip-shaped groove, and the other end of each screw rod is exposed out of the corresponding strip-shaped groove; and the handle is arranged on the fixed seat.

The utility model discloses an in the embodiment, aeroengine bearing's supporting seat clamping tools still includes a plurality of gland nuts, and each gland nut locks at the other end that corresponds the screw rod.

In an embodiment of the present invention, the extending direction of the plurality of bar-shaped grooves is radially outward divergent from the center of the fixing base.

In an embodiment of the present invention, the guide hole penetrates the protrusion along a radial direction of the fixing seat.

In an embodiment of the present invention, the handle is disposed on the upper end surface of the fixing base.

In an embodiment of the present invention, the fixing base is annular, wherein the protrusion is close to the inner edge of the fixing base.

In an embodiment of the present invention, the protrusion is continuously or discontinuously disposed on the fixing base.

In an embodiment of the present invention, each hook block has a screw hole, and one end of each screw rod is connected to the corresponding hook block through a screw hole.

Compared with the prior art, the utility model has the advantages of it is following: convenient operation improves the convenience of deep intracavity part installation, is favorable to the control of precision parts assembly such as engine, reduces the risk that the frock part drops. And the structure of the tool is relatively simple, and the production cost is low.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the principle of the invention. In the drawings:

fig. 1a is a cross-sectional view of a front bearing outer ring connection structure of a research and development machine according to an embodiment of the present invention;

fig. 1b is a schematic perspective view of a front bearing outer ring connection structure of a research and development machine according to an embodiment of the present invention;

fig. 2 is a schematic perspective view of a support base clamping tool of an embodiment of the present invention after being fixed to an elastic support base;

fig. 3 is a cross-sectional view of the support holder clamping tool of an embodiment of the present invention after being fixed to an elastic support holder;

fig. 4 is a schematic perspective view of a support base clamping tool according to an embodiment of the present invention;

fig. 5a is a top view of a support base clamping tool according to an embodiment of the present invention;

FIG. 5b is a cross-sectional view A-A of the backup clamp of FIG. 5 a;

fig. 6a is a schematic perspective view of a fixing seat of a supporting seat clamping tool according to an embodiment of the present invention;

fig. 6b is a schematic perspective view of a hook screw of a support base clamping tool according to an embodiment of the present invention.

List of reference numerals

10 research and development motivation front bearing outer ring connection structure

11 outer casing

12 elastic supporting seat

13 bearing outer ring (with rolling element)

21 upper end surface of elastic support seat

22 elastic supporting seat window upper end surface

40 support seat clamping tool

41 handle

421 first gland nut

422 second compression nut

423 third compression nut

431 first bolt

432 second bolt

60 fixed seat

601 first projection

602 first strip-shaped groove

603 first guide hole

604 second projection

605 second strip-shaped groove

606 second guiding hole

607 third projection

608 third strip groove

609 third guide hole

610 fixed seat upper end face

611 first bolt hole

612 second bolt hole

6021 first end of first strip groove

6022 second end of first strip-shaped groove

6051 second strip groove first end

6052 second end of second strip groove

6081 third strip groove first end

6082 third strip groove second end

61 hook block screw

611 hook block

612 screw rod

61a first hook block screw rod

61b second hook block screw

61c third hook block screw

Detailed Description

As used in this application and the appended claims, the terms "a," "an," "the," and/or "the" are not intended to be inclusive in the singular, but rather are intended to be inclusive in the plural unless the context clearly dictates otherwise. In general, the terms "comprises" and "comprising" merely indicate that steps and elements are included which are explicitly identified, that the steps and elements do not form an exclusive list, and that a method or apparatus may include other steps or elements.

The relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present application, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the case of not making a reverse description, these directional terms do not indicate and imply that the device or element being referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the scope of the present application; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of protection of the present application is not to be construed as being limited. Further, although the terms used in the present application are selected from publicly known and used terms, some of the terms mentioned in the specification of the present application may be selected by the applicant at his or her discretion, the detailed meanings of which are described in relevant parts of the description herein. Further, it is required that the present application is understood not only by the actual terms used but also by the meaning of each term lying within.

It will be understood that when an element is referred to as being "on," "connected to," or "in contact with" another element, it can be directly on, connected or coupled to, or in contact with the other element or intervening elements may be present. In contrast, when an element is referred to as being "directly on," "directly connected to," or "directly in contact with" another element, there are no intervening elements present.

The use of first, second, or other words of similar import as representing sequential order is used herein to describe operations performed by the assembly method according to embodiments of the present application. It should be understood that the operations need not be performed in the exact order of first, then, etc. Rather, various steps may be processed in reverse order or simultaneously. Meanwhile, other operations are added to or removed from these processes.

Fig. 4 is a perspective view of a supporting seat clamping tool according to an embodiment of the present invention, wherein the supporting seat clamping tool 40 mainly comprises a handle 41, a fixing seat 60, three groups of hook block screws 61a, 61b and 61c and other necessary compression nuts and bolts, each of which will be described in detail below.

Fig. 6a is a perspective view of the fixing base 60 of the supporting base clamping tool 40 according to the embodiment of the present invention. The fixing base 60 is annular, and the fixing base 60 is intermittently provided with three downward protrusions close to the inner edge of the annular shape, wherein each protrusion is a first protrusion 601, a second protrusion 604 and a third protrusion 607. The position that corresponds three bulge on this fixing base up end 610 is equipped with three bar groove, is first bar groove 602 respectively, second bar groove 605 and third bar groove 608, and the extending direction in each bar groove is for radially outwards dispersing from the center of fixing base 60. Three guide holes, namely a first guide hole 603, a second guide hole 606 and a third guide hole 609 are further formed in the three bulges of the fixed seat 60 and lead into the three bulges from the outer diameter of the fixed seat 60. The portions of the second protrusion 604 and the second guide hole 606 that are blocked by other portions of the support seat clamping means 40 are shown by dashed lines in fig. 6 a. As shown in fig. 6a, the third guide hole 603 is formed through the inner end and the outer end of each guide hole of the fixing base 60 of the support base clamping tool 40 in this embodiment. In another embodiment of the present invention, each guide hole may not be penetrated. The above-mentioned three guide holes 603, 606 and 609 communicate with the corresponding strip grooves 602, 605 and 608 in the respective corresponding bosses 601, 604 and 607.

In another embodiment of the present invention, the protrusion of the fixing base of a supporting base clamping tool is continuously disposed on the fixing base.

Fig. 6b is a perspective view of a hook screw 61 of the holder clamping tool 40 according to the present invention. Referring to fig. 4, the supporting seat clamping tool 40 in this embodiment has three sets of hook screws 61, which are a first hook screw 61a, a second hook screw 61b and a third hook screw 61 c. The portions of the second hook block screw 61b and the third hook block screw 61c that are blocked by other portions of the support seat clamping tool 40 are shown by dotted lines in fig. 4. As shown in fig. 6b, the hook block screw 61 of the present invention adopts a split design, and the hook block 611 and the screw 612 of each hook block screw can move through each strip-shaped groove and each guide hole on the fixing base 60 as shown in fig. 6a, and attach and fix to the fixing base 60 with each pressing nut 421, 422, and 423 as shown in fig. 4. It should be noted that the utility model discloses do not make the restriction to quantity, size and the material of colluding the piece screw rod, as long as make according to the work piece needs of actual production and select and adjust on quantity, size and material all belong to the spirit and the scope of the utility model.

In another embodiment of the present invention, the hook block of a supporting seat clamping tool of the present invention can also vertically move in the corresponding guiding hole, except for being radially moved in the corresponding guiding hole.

In order to better understand the structure of the supporting seat clamping tool of the present invention, the assembling method of the supporting seat clamping tool 40 of the present embodiment of the present invention is briefly described below.

First, the first bolt 431 and the second bolt 432 are screwed through the bolt holes at both ends of the handle 41 to the first bolt hole 611 and the second bolt hole 612 of the holder 60, respectively, so that the handle 41 is fixed to the holder upper end surface 610. Fig. 5a shows a fixing position of the handle 41 supporting the holder tool 40 on the holder 60 in this embodiment. It should be noted that, the present invention does not limit the position of the first bolt hole 611 and the second bolt hole 612 on the fixing base 60, the position of the bolt hole determines the fixed position of the handle 41 on the fixing base 60, and the positions of the first bolt hole 611 and the second bolt hole 612 on the fixing base 60 are all within the spirit and scope of the present invention as long as the normal fixing and moving of the three groups of hook block screws 61a, 61b and 61c in the corresponding bar grooves are not overlapped or affected after the handle 41 is fixed on the fixing base 60.

Then, the three sets of screws 61a, 61b, and 61c are assembled to the holder 60, respectively. Taking the first hook block screw 61a as an example, the hook block 611 of the first hook block screw 61a is pushed into the first guide hole 603 from the side surface of the fixed base 60, and then the screw 612 of the first hook block screw 61a is inserted into the first linear groove 602 on the upper end surface 610 of the fixed base and screwed into the screw hole of the hook block 611 of the first hook block screw 61 a. By the above method, the lower end of the screw 612 in the first hook block screw 61a is combined with the hook block 611 in the first hook block screw 61a through the first strip-shaped groove 602, and the upper end of the screw 612 in the first hook block screw 61a is exposed out of the first strip-shaped groove 602. When the screw 612 in the first hook block screw 61a is pushed outwards to the first end 6021 of the first strip-shaped groove, the outer end of the hook block 611 in the first hook block screw 61a extends outwards in the radial direction outside the first protrusion 601; as the screw 612 in the first hook block screw 61a is pushed inwardly to the first bar-shaped groove second end 6022, the inner end of the hook block 611 in the first hook block screw 61a is retracted radially inwardly into the first guide hole 603.

After the hook block 611 and the screw 612 in the first hook block screw 61a are assembled and combined by the above method, they are attached to the fixing base 60 together through the first bar-shaped groove 602 and the first guide hole 603, and will not fall off. The screw 612 of the first hook screw 61a can move back and forth between the two ends of the first bar-shaped groove 602 in the above-mentioned manner, and the hook 611 of the first hook screw 61a moves radially inward and outward of the first guide hole 603.

According to the above method for assembling the first hook block screw 61a, the hook blocks 611 and the screws 612 in the second hook block screw 61b and the third hook block screw 61c are assembled and combined through the corresponding second strip-shaped groove 605 and the third strip-shaped groove 608, and the second guide hole 606 and the third guide hole 609 of the fixing base 60, respectively, so that the hook blocks 611 and the screws 612 in the second hook block screw 61b and the third hook block screw 61c are attached to the fixing base 60 together, respectively, and cannot fall off. The screw 612 in the second hook screw 61b can move back and forth between the two ends of the second strip-shaped groove 605 in the above manner, and the hook 611 in the second hook screw 61b can move radially inward and outward of the second guide hole 606; the screw 612 of the third hook screw 61c can move back and forth between the two ends of the third bar-shaped groove 608 in the above-mentioned manner, and the hook 611 of the third hook screw 61c moves radially inward and outward of the third guide hole 609.

Referring to fig. 4, in the embodiment of the present invention, there are three compression nuts corresponding to the three groups of hook block screws, which are a first compression nut 421, a second compression nut 422, and a third compression nut 423. Still taking the first hook block screw 61a as an example, after the first hook block screw 61a is assembled on the fixing base 60, the first compression nut 421 is screwed onto the screw 612 of the first hook block screw 61a, and will not fall off. Similarly, the second compression nut 422 and the third compression nut 423 are respectively screwed on the screws 612 in the second hook block screw 61b and the third hook block screw 61c, and cannot fall off.

At this time, the assembly of the supporting seat clamping tool 40 in this embodiment of the present invention is basically completed, when none of the three gland nuts is locked, the screws 612 in the three corresponding groups of hook block screws can move back and forth between the two ends of the corresponding bar-shaped groove, and the hook blocks 611 in the three groups of hook block screws can also move radially inward and outward in the corresponding guide holes; when the compression nut is locked, the locked hook block screw rod cannot move in the corresponding strip-shaped groove and the corresponding guide hole and is kept at the position in the corresponding strip-shaped groove and the corresponding guide hole before the compression nut is locked.

In order to further better understand the utility model discloses a supporting seat clamping tool's structure, the following brief introduction the utility model discloses a supporting seat clamping tool and an aeroengine's elastic support seat's assembly combination and install the operation in an aeroengine outer cartridge receiver. As shown in fig. 2 and 3, in an embodiment of the present invention, the supporting seat clamping tool 40 in the first embodiment is used to realize the installation of the elastic supporting seat 12 of the aero-engine in the outer casing 11 of the aero-engine as shown in fig. 1a and 1 b.

First, with the support seat clamping tool 40 of the first embodiment described above, with the three compression nuts in a relaxed state, the screws 612 of the three sets of hook block screws 61a, 61b, and 61c are slid respectively to the innermost ends of the corresponding strip-shaped grooves, i.e., to the first groove second end 6022, the second groove second end 6052, and the third groove second end 6082, respectively, and the hook blocks 611 of the three sets of hook block screws 61a, 61b, and 61c are then retracted radially inward into the corresponding guide holes, respectively.

Then, the supporting seat clamping tool 40 is held by hand and moved to the upper end surface 21 of the elastic supporting seat as a whole, the screws 612 of the three sets of hook block screws 61a, 61b and 61c are respectively slid to the outermost ends of the corresponding strip-shaped grooves, i.e. to the first end 6021 of the first strip-shaped groove, the first end 6051 of the second strip-shaped groove and the first end 6081 of the third strip-shaped groove, and the hook blocks 611 of the three sets of hook block screws 61a, 61b and 61c are respectively extended out of the corresponding protruding portions radially outwards and simultaneously pass through a window of the corresponding elastic supporting seat 12. At this time, the three pressing nuts 421, 422 and 423 are tightened, so that each hook 611 just contacts the upper end surface 22 of the window of the elastic support, the three pressing nuts 421, 422 and 423 are tightened, and the support clamping tool 40 is fastened and fixed on the elastic support 12.

Next, as shown in fig. 3, the assembled elastic bearing with the bearing-holding tool 40 fastened thereto is placed in a deep cavity of an aircraft engine case 11 to be mounted. The elastic support 12 is then fixed to the outer case 11 of the aircraft engine by means of corresponding bolts or the like, with the mounting holes of the outer case 11 aligned. After confirming that the installation is completed, the three gland nuts 421, 422 and 423 of the shoe clamping tool 40 are loosened, and the screws 612 of the three sets of hook block screws 61a, 61b and 61c are respectively slid to the innermost ends of the corresponding strip-shaped grooves, i.e., the first groove second end 6022, the second groove second end 6052 and the third groove second end 6082, and the hook blocks 611 of the three sets of hook block screws 61a, 61b and 61c are respectively contracted radially inward into the corresponding guide holes. Finally, the support base clamping tool 40 is taken out of the elastic support base 12, and the installation of the elastic support base in the outer casing of the aeroengine bearing is completed.

Having thus described the basic concept, it will be apparent to those skilled in the art that the foregoing disclosure is by way of example only, and is not intended to limit the present application. Various modifications, improvements and adaptations to the present application may occur to those skilled in the art, although not explicitly described herein. Such modifications, improvements and adaptations are proposed in the present application and thus fall within the spirit and scope of the exemplary embodiments of the present application.

Also, this application uses specific language to describe embodiments of the application. Reference throughout this specification to "one embodiment," "an embodiment," and/or "some embodiments" means that a particular feature, structure, or characteristic described in connection with at least one embodiment of the present application is included in at least one embodiment of the present application. Therefore, it is emphasized and should be appreciated that two or more references to "an embodiment" or "one embodiment" or "an alternative embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, some features, structures, or characteristics of one or more embodiments of the present application may be combined as appropriate.

Similarly, it should be noted that in the preceding description of embodiments of the present application, various features are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the embodiments. This method of disclosure, however, is not intended to require more features than are expressly recited in the claims. Indeed, the embodiments may be characterized as having less than all of the features of a single embodiment disclosed above.

Numerals describing the number of components, attributes, etc. are used in some embodiments, it being understood that such numerals used in the description of the embodiments are modified in some instances by the use of the modifier "about", "approximately" or "substantially". Unless otherwise indicated, "about", "approximately" or "substantially" indicates that the number allows a variation of ± 20%. Accordingly, in some embodiments, the numerical parameters used in the specification and claims are approximations that may vary depending upon the desired properties of the individual embodiments. In some embodiments, the numerical parameter should take into account the specified significant digits and employ a general digit preserving approach. Notwithstanding that the numerical ranges and parameters setting forth the broad scope of the range are approximations, in the specific examples, such numerical values are set forth as precisely as possible within the scope of the application.

Although the present application has been described with reference to the present specific embodiments, it will be recognized by those skilled in the art that the foregoing embodiments are merely illustrative of the present application and that various changes and substitutions of equivalents may be made without departing from the spirit of the application, and therefore, it is intended that all changes and modifications to the above-described embodiments that come within the spirit of the application fall within the scope of the claims of the application.

Claims (8)

1. The utility model provides an aeroengine bearing's supporting seat clamping tools which characterized in that includes:

the fixing seat is provided with a downward bulge, a plurality of strip-shaped grooves are formed in the upper end face of the fixing seat at positions corresponding to the bulge, a plurality of guide holes leading into the bulge from the outside of the fixing seat in the radial direction are formed in the bulge, and each guide hole is communicated with the corresponding strip-shaped groove in the corresponding bulge;

each hook block is movably arranged in the corresponding guide hole;

one end of each screw rod is combined with the corresponding hook block through the corresponding strip-shaped groove, and the other end of each screw rod is exposed out of the corresponding strip-shaped groove; and

the handle is arranged on the fixed seat.

2. The shoe clamping tool of claim 1 further comprising a plurality of compression nuts, each compression nut captured on an end of a corresponding threaded rod.

3. The seat holder of claim 1 wherein the plurality of elongated slots extend in a direction diverging radially outwardly from the center of the seat.

4. The anchor block clamping tool of claim 1, wherein said guide hole extends through said boss in a radial direction of said anchor block.

5. The seat holder of claim 1 wherein the handle is disposed on an upper end surface of the holder.

6. The anchor block gripping tool of claim 1, wherein the anchor block is annular, wherein the projection is proximate an inner edge of the anchor block.

7. The anvil clamping tool of claim 1 wherein said projections are provided on said anchor block continuously or intermittently.

8. The shoe clamping tool of claim 1 wherein each hook has a threaded bore, one end of each threaded rod being threadably engaged with the corresponding hook through the threaded bore.

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