CN214110247U - Blade mounting tool - Google Patents

Abstract

The utility model relates to a mounting tool of blade, include: a gear pitch adjustment mechanism; one end of the bracket is rotatably arranged on the gear distance adjusting mechanism; the clamping mechanism is arranged at the other end of the bracket and is used for clamping the tenon of the blade; and the positioning mechanism is arranged on the support and is used for positioning the tenon.

Description

Blade mounting tool

Technical Field

The utility model relates to an engine assembly field especially relates to an installation tool of blade.

Background

In the field of axial-flow impeller machinery of aero-engines, in order to enhance the stage efficiency of a compressor and improve the characteristics of the compressor, the blades of the first several stages of the high-pressure compressor of a civil turbofan engine are usually designed to be swept, and the blade tip portion is inconvenient to install due to the fact that the sweep angle is too large.

Aircraft engines typically have three types of mortises, namely: axial tongue-and-groove, circumference tongue-and-groove and fir type tongue-and-groove. In order to improve the bearing capacity of the mortise, the high-pressure compressor of the aircraft engine generally adopts an axial mortise. However, when the axial mortises are used for loading the blades, the swept angle of the blades is designed to be large so as to ensure the aerodynamic performance, and the blades are difficult to mount.

Traditional blade mounting means is that manual puts into the tongue-and-groove with the blade in proper order, because radial distance is too near between the several grades of blades of back, very easily takes place to interfere during the installation and leads to blade point portion to bump the mill, causes blade surface fish tail, brings inconvenience for the installation of blade.

The existing blade installation method mainly comprises the steps that blades are manually placed into a mortise one by one for a certain distance, after all the blades are ensured to enter the mortise, the blades are sequentially pushed into the mortise for a certain distance along the circumferential direction until all the blades completely enter the mortise, and the assembly of the blades is completed.

However, the method of manually installing the blades is time consuming and it is difficult to install the blades having small inter-blade gaps when the blade row thickness is large.

In view of the above, the prior art is to be further improved, and it is important to develop an automatic blade installation tool to complete the automatic assembly of the blade.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that an installation tool of blade is provided, this installation tool can realize the automatic installation of blade, and the problem is bumped in scraping that adjacent blade distance leads to near when having reduced the installation, has improved the precision of installation and the efficiency of assembly, simple structure and easily operation.

The utility model discloses a solve above-mentioned technical problem and the technical scheme who adopts provides a mounting tool of blade, include: a gear pitch adjustment mechanism; one end of the bracket is rotatably arranged on the gear distance adjusting mechanism; the clamping mechanism is arranged at the other end of the bracket and is used for clamping the tenon of the blade; and the positioning mechanism is arranged on the bracket and is used for positioning the tenon.

In an embodiment of the present invention, the support is a length-adjustable support, and the gear distance adjusting mechanism is used for adjusting the length of the support.

In an embodiment of the present invention, the gear pitch adjustment mechanism is used for adjusting the angle of the bracket rotating along the circumferential direction.

In an embodiment of the present invention, the gear pitch adjustment mechanism is used for adjusting the inclination angle of the bracket.

In an embodiment of the present invention, the bracket has an outer edge and an inner edge opposite to the outer edge, and the gear distance adjusting mechanism is used for adjusting an angle between the outer edge and the inner edge.

In an embodiment of the present invention, the clamping mechanism includes a pressure sensor, and the pressure sensor is used for detecting the pressure received by the tenon.

In an embodiment of the present invention, the positioning mechanism includes a photoelectric sensor.

In an embodiment of the invention, the blade comprises a swept blade.

The utility model discloses owing to adopt above technical scheme, make it compare with prior art, have following apparent advantage:

the utility model discloses an installation tool of blade includes gear roll adjustment mechanism, rotatably locates the support on the gear roll adjustment mechanism, locates centre gripping framework and positioning mechanism on the support, through the tenon of fixture centre gripping blade, fixes a position the tenon through positioning mechanism, and this installation tool can realize the automatic installation of blade, and the problem is bumped in scraping that adjacent blade distance leads to near when having reduced the installation, has improved the precision of installation and the efficiency of assembly, simple structure and easily operation.

Drawings

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings, wherein:

fig. 1 is a schematic structural diagram of a blade installation tool according to an embodiment of the present invention.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described herein, and thus the present invention is not limited by the specific embodiments disclosed below.

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.

In describing the embodiments of the present invention in detail, the cross-sectional view showing the structure of the device is not enlarged partially according to the general scale for the convenience of illustration, and the schematic diagram is only an example, which should not limit the protection scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.

For convenience in description, spatial relational terms such as "below," "beneath," "below," "under," "over," "upper," and the like may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. It will be understood that these terms of spatial relationship are intended to encompass other orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary words "below" and "beneath" can encompass both an orientation of up and down. The device may have other orientations (rotated 90 degrees or at other orientations) and the spatial relationship descriptors used herein should be interpreted accordingly. Further, it will also be understood that when a layer is referred to as being "between" two layers, it can be the only layer between the two layers, or one or more intervening layers may also be present.

In the context of this application, a structure described as having a first feature "on" a second feature may include embodiments in which the first and second features are formed in direct contact, and may also include embodiments in which additional features are formed in between the first and second features, such that the first and second features may not be in direct contact.

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

The utility model discloses a following embodiment provides an erecting tool of blade, and this erecting tool can realize the automatic installation of blade, and the problem is bumped in scraping that adjacent blade distance leads to near when having reduced the installation, has improved the precision of installation and the efficiency of assembly, simple structure and easily operation.

Fig. 1 is a schematic structural diagram of a blade installation tool according to an embodiment of the present invention. The specific structure of the blade installation tool 100 will be described below with reference to fig. 1. It is to be understood that the following description is merely exemplary, and that various changes may be made by those skilled in the art without departing from the spirit of the invention.

Referring to fig. 1, the blade installation tool 100 includes a gear pitch mechanism 110, a bracket 120, a clamping mechanism 130, and a positioning mechanism 140.

One end of the bracket 120 is rotatably disposed on the gear pitch adjustment mechanism 110, the clamping mechanism 130 is disposed at the other end of the bracket 120 and is used for clamping a tenon (not shown) of the blade, and the positioning mechanism 140 is disposed on the bracket 120 and is used for positioning the tenon.

In an embodiment of the present invention, the bracket 120 may be a length-adjustable bracket, and the gear distance adjusting mechanism 110 is used to adjust the length of the bracket 120.

Illustratively, when the cradle 120 is a length adjustable cradle, the diameter of the installation tool 100 may be varied by adjusting the length of the cradle 120 via the torsional gear pitch mechanism 110 to accommodate installation of blade disks of different diameters and to accommodate accuracy of alignment between the blade tenons and the blade disk mortises during adjustable installation.

It should be understood that the bladed disk may refer to a high pressure compressor rotor disk or a turbine disk, but the present invention is not limited thereto.

In some embodiments of the present invention, the types of mortises for which the installation tool 100 is suitable include, but are not limited to, axial mortises and fir-tree type mortises.

In the following embodiments of the present invention, the blade may comprise a swept blade.

In an embodiment of the present invention, the gear pitch adjusting mechanism 110 may be used to adjust the angle of the bracket 120 rotating along the circumferential direction. One end of the bracket 120 is rotatably provided on the gear pitch adjustment mechanism 110. Thus, by twisting the gear pitch mechanism 110, the angle of rotation of the bracket 120 in the circumferential direction may be adjusted so that the blade tenons held by the clamping mechanism 130 may be aligned with the mortises on the blade disk.

In some embodiments, the number of blades that can be gripped by the gripping mechanism 130 of the installation tool 100 may correspond exactly to the number of mortises on a blade disk. Thus, alignment between all the blade tenons and the blade disc mortises can be achieved only by aligning the blade tenons with one of the mortises on the blade disc.

In an embodiment of the present invention, the gear pitch adjustment mechanism 110 can be used to adjust the inclination angle of the bracket 120. For example, the pitch angle of the bracket 120 in the axial direction can be adjusted by the gear pitch adjustment mechanism 110, so as to adjust the orientation of the tenon clamped by the clamping mechanism 130 to align with the mortise position on the blade disc, thereby ensuring the alignment accuracy of the blade tenon and the mortise of the blade disc.

With continued reference to fig. 1, in an embodiment of the present invention, the bracket 120 has an outer edge 121 and an inner edge 122 opposite the outer edge 121, and the gear adjustment mechanism 110 can be used to adjust the angle between the outer edge 121 and the inner edge 122.

Preferably, the pitch adjustment mechanism 110 can be used to adjust the fore-aft inclination angle of the bracket 120 in the axial direction, and further adjust the angle between the outer edge 121 and the inner edge 122, so as to adjust the orientation of the blade tenon clamped by the clamping mechanism 130 to align with the mortise position on the blade disc, thereby ensuring the alignment accuracy of the blade tenon and the mortise of the blade disc.

In an embodiment of the present invention, the clamping mechanism 130 may include a pressure sensor 131, and the pressure sensor 131 may be used to detect the pressure received by the tenon.

For example, a pressure sensor 131 may be provided at the front end of the clamping mechanism 130, and the pressure sensor 131 may sense the pressure when the blade tenon is pushed into the blade disk mortise, so that the installation accuracy can be ensured when the blade tenon is put into the blade disk mortise.

Illustratively, during the pushing process, when the values of the pressure sensors 131 corresponding to each blade are consistent, it indicates that the pressure applied to the tenon is the same.

For example, it may be set to stop pushing the tenon of the blade when the value of the pressure sensor 131 reaches a certain threshold value.

In an embodiment of the present invention, the positioning mechanism 140 may include a photoelectric sensor. The photoelectric sensor can detect whether the blade tenon is aligned with the blade disc mortise.

It should be noted that, persons skilled in the art can make corresponding modifications to the specific type of the positioning mechanism 140 according to actual needs, and the present invention is not limited thereto.

A specific process of installing a blade using the installation tool 100 of the present invention will be described with reference to fig. 1. It is to be understood that the following description is merely exemplary, and that various changes may be made by those skilled in the art without departing from the spirit of the invention.

First, the blades to be installed may be manually inserted into the fixture 130 of the installation tool 100 in sequence.

It will be appreciated that while the support 120 may be a length adjustable support, the diameter of the installation tool 100 may be varied to accommodate installation of different diameter blisks by adjusting the length of the support 120 via the twist gear pitch mechanism 110.

The angle of circumferential rotation of the carrier 120 may then be adjusted by twisting the gear pitch mechanism 110 so that the blade tenons held by the clamping mechanism 130 align with the mortises on the blade disk.

In some embodiments, the number of blades that can be gripped by the gripping mechanism 130 of the installation tool 100 may correspond exactly to the number of mortises on a blade disk. Thus, alignment between all the blade tenons and the blade disc mortises can be achieved only by aligning the blade tenons with one of the mortises on the blade disc.

The bracket 120 is provided with a positioning mechanism 140, and whether the blade tenon is aligned with the blade disc mortise can be detected through the positioning mechanism 140.

In one example shown in fig. 1, the positioning mechanism 140 may be a photosensor.

For example, when the blade tenon is not aligned with the blade disk mortise, the angle of circumferential rotation of the mount 120 may continue to be adjusted by the gear pitch mechanism 110 until alignment is achieved therebetween.

Then, the gear pitch adjustment mechanism 110 is used to adjust the fore-aft inclination angle of the bracket 120 in the axial direction, so as to adjust the orientation of the tenon clamped by the clamping mechanism 130 to align with the mortise on the blade disc.

In some examples, the brace 120 may have an outer edge 121 and an inner edge 122 opposite the outer edge 121. The pitch adjusting gear 110 is used to adjust the fore-and-aft inclination angle of the bracket 120 in the axial direction, and further adjust the angle between the outer edge 121 and the inner edge 122, so as to adjust the orientation of the blade tenon clamped by the clamping mechanism 130, so that the blade tenon is aligned with the mortise position on the blade disc, and the alignment accuracy of the blade tenon and the mortise of the blade disc is ensured.

For example, when the blade tenons are not aligned with the blade disk mortises, the pitch angle of the carrier 120 in the axial direction may continue to be adjusted by the gear pitch mechanism 110 until full alignment is achieved therebetween.

Thereafter, the blade tenons may be manually pushed into the blade disk mortises a distance in sequence until a full circle of blades on the installation tool 100 enter the mortises.

Finally, the clamping mechanism 130 is tightened to become an axial pushing mechanism, and the full ring blade can be pushed into the mortise manually. At this point, the installation of the blade is completed.

Because the front end of the clamping mechanism 130 is provided with the pressure sensor 131, the pressure sensor 131 can sense the pressure when the blade tenon is pushed into the blade disc mortise, and the installation precision can be ensured when the blade tenon is put into the blade disc mortise.

Illustratively, during the pushing process, when the values of the pressure sensors 131 corresponding to each blade are consistent, it indicates that the pressure applied to the tenon is the same.

For example, pushing the tenon of the blade may be stopped when the value of the pressure sensor 131 reaches a certain threshold, and/or when the blade cannot be pushed.

It should be noted that the specific mounting steps/operations are not necessarily performed exactly in the order described above. Rather, various steps/operations may be processed in reverse order or concurrently. Meanwhile, other steps/operations may be added to the processes, or one or more steps/operations may be removed from the processes, but the present invention is not limited thereto.

The utility model discloses a mounting tool 100 simple structure and easily operation fix a position accurately when installing the blade, and degree of automation is higher, can realize the automatic installation of whole circle blade well. Meanwhile, the problem that the tips of adjacent blades are easy to rub/scrape in the process of assembling the axial mortises of the engine is effectively solved, the assembling time is saved, and the assembling efficiency and the assembling precision are improved.

It should be noted that the present invention is not limited to the number and size of the components/elements. For example, in some embodiments of the present invention, the installation tool 100 may include more than two sets of positioning mechanisms 140, and the sets of positioning mechanisms 140 cooperate to position the tenon. It is understood that any selection or adjustment made to achieve the positioning effect and meet the actual production needs is within the spirit and scope of the present invention.

Furthermore, while the present invention has been described in detail with reference to the drawings, for convenience of illustration, the cross-sectional view of the device structure is not enlarged partially according to the general scale, and the drawings are only examples, which should not limit the scope of the present invention. In actual fabrication, three-dimensional dimensions of length, width and depth should be included.

The utility model discloses an above embodiment provides an erecting tool of blade, and this erecting tool can realize the automatic installation of blade, and the problem is bumped in scraping that adjacent blade distance leads to near when having reduced the installation, has improved the precision of installation and the efficiency of assembly, simple structure and easily operation.

It is to be understood that even though some presently contemplated embodiments have been discussed in the foregoing disclosure by way of various examples, it is to be understood that such detail is solely for that purpose and that the appended claims are not limited to the disclosed embodiments, but, on the contrary, are intended to cover all modifications and equivalent arrangements that are within the spirit and scope of the embodiments of the disclosure.

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.

Additionally, the order in which elements and sequences of the processes described herein are processed, the use of alphanumeric characters, or the use of other designations, is not intended to limit the order of the processes and methods described herein, unless otherwise indicated in the claims. While various presently contemplated embodiments have been discussed in the foregoing disclosure by way of example, it should be understood that such detail is solely for that purpose and that the appended claims are not limited to the disclosed embodiments, but, on the contrary, are intended to cover all modifications and equivalent arrangements that are within the spirit and scope of the embodiments herein disclosed. For example, although the system components described above may be implemented by hardware devices, they may also be implemented by software-only solutions, such as installing the described system on an existing server or mobile device.

Similarly, it should be noted that in the preceding description of embodiments of the application, various features are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure 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.

Some embodiments have been described using numbers to describe components, attributes, and quantities, it being understood that such numbers as are suitable for description of the embodiments have been 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 invention has been described with reference to the present specific embodiments, it will be understood by those skilled in the art that the above embodiments are merely illustrative of the present invention, and various equivalent changes and substitutions may be made without departing from the spirit of the present invention, and therefore, changes and modifications to the above embodiments within the spirit of the present invention will fall within the scope of the claims of the present application.

Claims (8)

1. A blade installation tool, comprising:

a gear pitch adjustment mechanism;

one end of the bracket is rotatably arranged on the gear distance adjusting mechanism;

the clamping mechanism is arranged at the other end of the bracket and is used for clamping the tenon of the blade; and

and the positioning mechanism is arranged on the support and is used for positioning the tenon.

2. The installation tool of claim 1, wherein said bracket is a length adjustable bracket and said gear pitch mechanism is configured to adjust the length of said bracket.

3. The installation tool of claim 1, wherein said gear pitch mechanism is configured to adjust an angle of rotation of said carrier in a circumferential direction.

4. The installation tool of claim 1, wherein said gear pitch mechanism is configured to adjust the tilt angle of said bracket.

5. The installation tool of claim 1, wherein said bracket has an outer edge and an inner edge opposite said outer edge, said gear pitch mechanism for adjusting an angle between said outer edge and said inner edge.

6. The installation tool of claim 1 wherein said clamping mechanism includes a pressure sensor for detecting pressure experienced by said tenon.

7. The installation tool of claim 1, wherein said positioning mechanism comprises a photosensor.

8. The installation tool of claim 1 wherein said blades comprise swept blades.

Images