CN113941836B

CN113941836B - Overturning bracket and overturning system

Info

Publication number: CN113941836B
Application number: CN202010692398.5A
Authority: CN
Inventors: 范明争; 陈栋权; 王海晨; 杨波
Original assignee: AECC Commercial Aircraft Engine Co Ltd
Current assignee: AECC Commercial Aircraft Engine Co Ltd
Priority date: 2020-07-17
Filing date: 2020-07-17
Publication date: 2022-09-06
Anticipated expiration: 2040-07-17
Also published as: CN113941836A

Abstract

The invention discloses a turnover support and a turnover system, relates to the field of aero-engines, and aims to optimize the performance of the turnover support. The overturning bracket comprises a bracket body and a transfer block. The stand body is configured to be removably coupled to the cart. The switching block is detachably arranged on the bracket body and comprises an installation cambered surface and an installation hole; the radian of the installation cambered surface is constructed to be the same as that of the cambered surface of the engine spigot; the mounting holes are configured to be arranged in correspondence with the mounting holes at the engine stop. The upset support that above-mentioned technical scheme provided just can be applicable to the engine of different models through changing the switching piece, and the commonality of upset support is high.

Description

Overturning bracket and overturning system

Technical Field

The invention relates to the field of aircraft engines, in particular to a turnover support and a turnover system.

Background

When an aircraft engine core machine is assembled, the assembly and the turnover of three main units, namely a front bearing unit, a high-pressure compressor rotor and a central transmission gearbox (IGB), are usually required to be completed. The existing overturning tool is formed by combining an overturning bracket and an overturning vehicle.

The inventor finds that at least the following problems exist in the prior art: the existing turning tool is only suitable for engines of the same type. If the size of the engine is changed, a set of new overturning bracket and overturning vehicle needs to be redesigned and processed, so that resource waste and occupation of an assembly field are caused, and the cost in the development stage and the management of subsequent assembly resources are greatly improved.

Disclosure of Invention

The invention provides a turning support and a turning system, which are used for optimizing the performance of the turning support.

Some embodiments of the invention provide a roll-over stand comprising:

a bracket body configured to be detachably connected with the turnover vehicle; and

the adapter block is detachably mounted on the bracket body and comprises a mounting cambered surface and a first mounting hole; the radian of the installation cambered surface is configured to be the same as the radian of the cambered surface of a spigot of an engine; the first mounting hole is configured to be arranged in correspondence with a second mounting hole at a stop of the engine.

In some embodiments, the stent body comprises:

the first bracket is provided with a plurality of the switching blocks in a dispersed manner; and

the second support, with first support can dismantle the connection in order to piece together and form polygon or annular, the second support also dispersedly installs a plurality ofly the switching piece.

In some embodiments, the inversion bracket further comprises:

the hoisting bracket is provided with a hoisting inner concave part; and

and one end of the connecting piece is fixedly connected with the hoisting support, and the other end of the connecting piece is fixedly connected with the support body.

In some embodiments, the outer side edge of the bracket body is provided with a support concave part, the other end of the connecting piece is supported by the support concave part, a fixing piece is arranged at the opening of the support concave part, and the fixing piece and the bottom surface of the support concave part jointly squeeze the other end of the connecting piece.

In some embodiments, the connecting members are provided in two, and the two connecting members are symmetrically arranged along the central axis of the stent body.

In some embodiments, the inversion bracket further comprises:

the positioning bracket is fixedly connected with the connecting piece; and

a positioning shaft configured to be detachably connected to a rotation shaft of the engine.

In some embodiments, the inversion bracket further comprises:

a slide rail mounted to the connector, the slide rail configured to mate with a slide block of a rollover cart; alternatively, the first and second electrodes may be,

a slider mounted to the connector, the slider configured to mate with a slide rail of a rollover cart.

In some embodiments, the inversion bracket further comprises:

a length measuring member mounted to the slide rail or the connecting member, the length measuring member configured to measure a position of the slider on the slide rail.

In some embodiments, the inversion bracket further comprises:

and the lifting ring is arranged on the bracket body.

Other embodiments of the present invention provide a flipping system, comprising:

turning over the vehicle; and

according to the turnover support provided by any technical scheme of the invention, the turnover support is detachably arranged on the turnover vehicle.

In some embodiments, the flipping car comprises a slider, and the flipping frame comprises a sliding track; the slide rail is provided with a plurality of mounting positioning holes, and the slide block can be selectively mounted in part of the mounting positioning holes.

According to the technical scheme, the adapter block is arranged on the support body, the connection between the engine and the support body is realized through the adapter block, the connected whole body is mounted on the turnover vehicle together, and the turnover operation is carried out under the driving of the turnover vehicle. The turnover support provided by the technical scheme changes the connection structure form of the turnover support and the engine, and is connected with the engine through the transfer block. When the model of the engine is changed, the switching block which is in accordance with the new model of the engine is replaced, so that the overturning bracket is suitable for the overturning operation of the new model of the engine. Therefore, the universality of the overturning bracket is improved, the structure and the performance of the overturning bracket are optimized, higher economic benefit is achieved, and the repeated design and processing of the same-configuration different-size overturning bracket are avoided.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention and do not constitute a limitation of the invention. In the drawings:

fig. 1 is a schematic perspective view of an overturning system according to an embodiment of the present invention;

fig. 2 is an enlarged schematic view of a slide rail of the turnover system according to the embodiment of the present invention;

fig. 3 is a schematic front view of a turning system according to an embodiment of the present invention;

FIG. 4 is a schematic side view of an exemplary embodiment of a flipping system;

fig. 5 is a schematic top view of the turning system according to the embodiment of the present invention.

Detailed Description

The technical solutions provided by the embodiments of the present invention are explained in more detail below with reference to fig. 1 to 5.

Referring to fig. 1 to 5, an embodiment of the present invention provides an overturning bracket, including a bracket body 1 and a transfer block 2. The stand body 1 is configured to be detachably connected with the convertible car 8. The adapter block 2 is detachably mounted on the bracket body 1, and the adapter block 2 includes a mounting arc surface 21 and a first mounting hole 22, see fig. 4. The arc of the installation arc surface 21 is configured to be the same as that of the engine 100 spigot. The first mounting hole 22 is configured to be arranged corresponding to the second mounting hole 102 at the stop of the engine 100.

Specifically, the first mounting hole 22 on the reference circle of the adapter block 2 corresponds to the first mounting hole 22 bearing the force in front of the engine 100. And the transfer block 2 is matched. The core engine of the engine 100 has two front rabbets, an inner rabbets and an outer rabbets 101. The adapter block 2 is matched with an outer spigot 101 of a front bearing front mounting edge of the engine 100.

The adapter block 2 has multiple models, the radian of the installation cambered surface 21 of the adapter block 2 of each model is different, the size of the adapter block 2 is matched with the model of the installed engine 100, the finally installed and formed overturning support and the engine 100 are integrated, and the overturning support integrated part is overlapped with the rotating shaft of the overturning vehicle 8 along the radial direction of the engine 100.

Referring to fig. 3, in some embodiments, the roll-over stand further comprises a lifting ring 10, and the lifting ring 10 is mounted to the stand body 1. The overturning bracket can be conveniently hoisted through the hoisting ring 10.

Referring to fig. 1, in some embodiments, the stent body 1 comprises a first stent 11 and a second stent 12. The first bracket 11 is dispersedly provided with a plurality of transfer blocks 2. The second bracket 12 is detachably connected with the first bracket 11 to form a polygon or a ring shape, and a plurality of adapter blocks 2 are dispersedly installed on the second bracket 12. In some embodiments illustrated in fig. 1, the first bracket 11 and the second bracket 12 are pieced together to form an octagonal structure.

The bracket body 1 adopts a split structure, and the strength of the tool during turning can be increased when the first bracket 11 and the second bracket 12 are installed together; the first bracket 11 and the second bracket 12 increase an assembly space in a separated state.

In some embodiments, the first bracket 11 and the second bracket 12 are each mounted with the hoist ring 10 described above. So set up for no matter how upset the upset support is, all can conveniently hoist the upset support.

Referring to fig. 2 to 3, in order to achieve easier lifting of the engine 100 to the turnover vehicle 8 and turning the engine 100 away from the turnover vehicle 8 after turnover, in some embodiments, the turnover support further includes a lifting support 3 and a connecting member 4. The hoisting support 3 has a hoisting recess, for example a through hole. One end of the connecting piece 4 is fixedly connected with the hoisting bracket 3, and the other end of the connecting piece 4 is fixedly connected with the bracket body 1. In other embodiments, in order to simplify the structure of the lifting bracket 3, the lifting bracket 3 is also provided with the lifting ring 10 described above, and the lifting ring 10 is used as a lifting concave part.

The support body 1 and the connecting piece 4 adopt the following connection mode: the outer side edge of the bracket body 1 is provided with a supporting concave part 13, the other end of the connecting piece 4 is supported by the supporting concave part 13, a fixing piece 14 is arranged at an opening of the supporting concave part 13, and the fixing piece 14 and the bottom surface of the supporting concave part 13 jointly squeeze the other end of the connecting piece 4. The fixing member 14 is, for example, a pin. The two pins stop outside the connecting element 4 to prevent the connecting element 4 from falling out of the supporting recess 13.

In some embodiments, there are two connecting members 4, and the two connecting members 4 are symmetrically arranged along the central axis of the stent body 1.

Referring to fig. 1-5, in some embodiments, the inversion bracket further includes a positioning bracket 5 and a positioning shaft 6. The positioning bracket 5 is fixedly connected with the connecting piece 4, for example, by bolts. The positioning shaft 6 is configured to be detachably connected to a rotating shaft of the engine 100. The positioning shaft 6 serves as a centering tool and can perform a centering function on a high-pressure compressor rotor of the engine 100.

The bracket body 1 is connected with one axial end A of the engine 100, and the other axial end of the engine 100 of the positioning bracket 5 plays a supporting role. Specifically, the positioning bracket 5 and the positioning shaft 6 are fixed together, and the positioning shaft 6 and the engine 100 are fixed together by bolts or the like. The positioning bracket 5 supports the other end B of the engine 100 by supporting the positioning shaft 6. The positioning bracket 5 and the bracket body 1 are substantially parallel and are located at both axial ends of the engine 100, respectively.

In some embodiments, the roll-over stand further comprises a slide rail 7, the slide rail 7 being mounted to the connecting member 4, the slide rail 7 being configured to cooperate with a slide block 81 of the roll-over carriage 8. Above-mentioned technical scheme utilizes slide rail 7 and slider 81's cooperation, and the focus place axis is adjustable when realizing that the upset support assembles to upset car 8, uses manpower sparingly, reduces the fatigue damage of upset car 8, realizes that different model engines 100 use the same race upset support, improves the upset success rate, and reduces the upset degree of difficulty.

In other embodiments, the slide 81 is mounted to the roll-over stand and the slide rail 7 is mounted to the roll-over carriage 8. The slide rail 7 and the slide block 81 cooperate.

According to the technical scheme, the slide rail 7 is used for adjusting the axial position of the gravity center of the three large unit bodies (namely the front bearing force, the high-pressure compressor rotor and the central transmission gear box) of the engine 100, so that the integral gravity center of the overturning bracket and the three large unit bodies is more reliably close to the rotating axis of the overturning vehicle 8 along the axial direction of the engine 100 in the overturning process, and the overturning is more labor-saving.

Referring to fig. 1 to 5, in some embodiments, the roll-over stand further comprises a length measuring member 9, the length measuring member 9 is mounted to the slide rail 7 or the connecting member 4, and the length measuring member 9 is configured to measure a position of the sliding block 81 on the slide rail 7. The length measuring member 9 is, for example, a scale. The position of the sliding block 81 can be conveniently measured by using a graduated scale, and whether the axial lead of the whole of the overturning bracket and the engine 100 is collinear with the central axis of the overturning car 8 or not is further judged.

Referring to fig. 1-5, other embodiments of the present invention provide a flipping system comprising a flipping vehicle 8 and a flipping carriage. The roll-over stand is detachably mounted to the roll-over carriage 8.

The overturning vehicle 8 can adopt an existing structure, the overturning vehicle 8 is provided with a hand wheel 84, and an overturning bracket arranged on the overturning vehicle 8 can be conveniently rotated through the hand wheel 84.

In some embodiments, the tipping cart 8 comprises a slide 81 and the tipping stand comprises a slide 7; the installation positions of the slide rail 7 and the slide block 81 can be adjusted.

Specifically, for example, the slide rail 7 has a plurality of mounting positioning holes 83, and the slide block 81 is selectively mounted in a part of the mounting positioning holes 83. Or, the slide rail 7 and the slide block 81 are matched with each other by threads similar to the lead screw, so that the overall gravity center of the turning support and the three large unit bodies is more reliably close to the rotating axis of the turning vehicle 8 along the axial direction of the engine 100 in the turning process, the relative position of the turning support and the engine 100 assembly relative to the rotating center of the turning vehicle 8 is adjustable, and finally the gravity center position is adjusted in a stepless manner.

In order to limit the moving range of the slider 81, stoppers 82 are provided at both ends of the slide rail 7.

The use of the flipping system is described below:

(1) the overturning bracket is arranged on the overturning vehicle 8 through the hanging ring 10, and the hand wheel 84 on the overturning vehicle 8 is adjusted to rotate the overturning bracket to be in a vertical state.

(2) The gravity center position of the turning bracket relative to the turning vehicle 8 is adjusted by the slide rail 7 and the slide block 81, and after reaching the designated position, the turning bracket is fixed by the bolt 85.

(3) The selected model of the adapter block 2 is installed by the fastener.

(4) The positioning bracket 5 at the rear end is removed.

(5) And hoisting the three large unit bodies of the engine 100 to the overturning bracket.

(6) And installing a positioning bracket 5 at the rear end and fixing the rotor unit body.

From this, the engine 100 can be operated in a reverse manner. If the front end operation space of the engine 100 in the vertical or horizontal state is insufficient, the lower supporting bracket half ring can be detached to detach the first bracket 11 or the second bracket 12, so that the operation space is increased.

The turnover system provided by the technical scheme not only adopts the form of the transfer block 2 to solve the problem of adaptability of the turnover support to engines 100 of different models, but also ensures that the relative position of the gravity center of the turnover support containing the engine 100 unit bodies relative to the rotation center of the turnover vehicle 8 is adjustable by using the structure of the sliding rail 7 and the sliding block 81 in order to ensure that the gravity centers of the adapted engines 100 and the turnover support are in the rotation center of the turnover vehicle 8, thereby optimizing the force application environment. Finally, after the switching blocks 2 of different models are replaced, the overturning system consisting of the same overturning vehicle 8 and the overturning bracket is suitable for assembling and overturning three large unit bodies of the engine 100 core machines of different models, and the resource time and space are saved.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings, which are based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the scope of the present invention.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: it is to be understood that modifications may be made to the technical solutions described in the foregoing embodiments, or equivalents may be substituted for some of the technical features thereof, but such modifications or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A roll-over stand, comprising:

a stand body (1) configured to be detachably connected with a turnover vehicle (8);

the adapter block (2) is detachably mounted on the bracket body (1), and the adapter block (2) comprises a mounting cambered surface (21) and a first mounting hole (22); the arc of the installation arc surface (21) is configured to be the same as the arc of the engine (100) spigot; the first mounting hole (22) is configured to be arranged corresponding to a second mounting hole (102) at a stop of the engine (100);

the hoisting bracket (3) is provided with a hoisting inner concave part;

one end of the connecting piece (4) is fixedly connected with the hoisting support (3), and the other end of the connecting piece (4) is fixedly connected with the support body (1);

wherein, the upset support still includes:

a slide rail (7) mounted to the connector (4), the slide rail (7) being configured to cooperate with a slider (81) of a tip truck (8); alternatively, the first and second electrodes may be,

a slider (81) mounted to the connecting piece (4), the slider (81) being configured to cooperate with a slide rail (7) of a tip truck (8).

2. A roll-over stand according to claim 1, characterized in that the stand body (1) comprises:

the first bracket (11) is provided with a plurality of the transfer blocks (2) in a scattered manner; and

the second support (12) is detachably connected with the first support (11) to be spliced to form a polygon or a ring, and the second support (12) is also provided with the plurality of switching blocks (2) in a dispersed manner.

3. The turning support according to claim 2, characterized in that the support body (1) is provided with a support concave part (13) at the outer edge, the other end of the connecting piece (4) is supported by the support concave part (13), a fixing piece (14) is arranged at the opening of the support concave part (13), and the fixing piece (14) and the bottom surface of the support concave part (13) jointly press against the other end of the connecting piece (4).

4. A roll-over stand according to claim 2, characterized in that the connecting pieces (4) are provided in two, the two connecting pieces (4) being arranged symmetrically along the central axis of the stand body (1).

5. The roll-over stand of claim 2, further comprising:

the positioning bracket (5) is fixedly connected with the connecting piece (4); and

a positioning shaft (6) configured to be detachably connected to a rotating shaft of the engine (100).

6. The roll-over stand of claim 1, further comprising:

a length measuring piece (9) mounted to the slide rail (7) or the connecting piece (4), the length measuring piece (9) being configured to measure the position of the slide block (81) on the slide rail (7).

7. The roll-over stand of claim 1, further comprising:

and the hanging ring (10) is mounted on the bracket body (1).

8. A flipping system, comprising:

a turnover vehicle (8); and

a roll-over stand according to any one of claims 1 to 7, which is detachably mounted to the roll-over carriage (8).

9. The tipping system of claim 8, characterized in that the tipping cart (8) comprises a slide (81) when the tipping stand comprises a slide rail (7); the slide rail (7) is provided with a plurality of mounting positioning holes (83), and the slide block (81) is mounted in part of the mounting positioning holes (83).