A lifting device and lifting method for blisk

Abstract

The present application relates to the technical field of aero-engine manufacturing, and particularly relates to a lifting tool for blisk and a lifting method. The lifting tool comprises a plurality of arc-shaped lifting plates and a lining cylinder, and a clamping groove is arranged on the outer cylindrical surface of the arc-shaped lifting plate; the lining cylinder is inserted into the through hole formed by the plurality of arc-shaped lifting plates, and the outer cylindrical surface of the lining cylinder abuts against the inner arc surface of the arc-shaped lifting plate; a lifting hole is arranged on the arc-shaped lifting plate. In use, the steps comprise the following: S1, inserting the plurality of arc-shaped lifting plates into the central hole of the hub of the blisk, and clamping the clamping groove of the arc-shaped lifting plate on the hub; S2, inserting the lining cylinder into the through hole formed by the plurality of arc-shaped lifting plates, and abutting the outer cylindrical surface of the lining cylinder against the inner arc surface of the arc-shaped lifting plate; S3, installing a lifting rope in the lifting hole of the arc-shaped lifting plate, and then lifting. The lifting tool provided by the present application is suitable for lifting the blisk, and has the advantages of simple structure and convenient operation.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of aero-engine manufacturing, and particularly relates to a lifting appliance for a blisk and a lifting method. BACKGROUND

[0002] In combination Figure 1 As shown in the figure, it is a schematic diagram of a blisk. The weight of the blisk is generally 25-50 kg, the diameter is generally 600-700 mm, the blades are evenly distributed, and there is no lifting hole. It is very difficult to lift or carry it by manpower, and there are great safety and quality risks in the manufacturing or transportation process.

[0003] Regarding the lifting appliance for the blisk, the prior art, such as the patent with the announcement number CN210594904U, discloses a universal clamp for lifting a large fan blisk, which adopts a lever clamping principle to lift the workpiece through an inner lining mode. The lifting screw rod is rotated to lift the locking circular table. Under the action of the locking circular table, the lower end of the clamping block rotates outward, and the upper end rotates in the spherical groove, so that the clamping block is inclined and tightly combined with the inner wall surface of the shaft neck of the blisk, thereby achieving clamping of the blisk.

[0004] The lifting appliance in the above-mentioned prior art cannot be applied to Figure 1 the lifting of the blisk shown in the figure. SUMMARY

[0005] The main purpose of the present application is to provide a lifting appliance for a blisk and a lifting method, which aims to solve the above-mentioned technical problems.

[0006] To achieve the above-mentioned purpose, on the one hand, the present application provides a lifting appliance for a blisk, which comprises a plurality of arc-shaped lifting plates and a lining cylinder. A clamping groove is arranged on the outer cylindrical surface of the arc-shaped lifting plate. The lining cylinder is inserted into the through hole formed by the plurality of arc-shaped lifting plates, and the outer cylindrical surface of the lining cylinder abuts against the inner arc surface of the arc-shaped lifting plate. A lifting hole is arranged on the arc-shaped lifting plate.

[0007] Preferably, the first arc-shaped protrusion and the second arc-shaped protrusion are integrally formed on the outer cylindrical surface of the arc-shaped lifting plate, and the two are arranged in an upper and lower spaced manner to form the clamping groove.

[0008] Preferably, a plurality of pin holes are arranged on the side wall of the lining cylinder, and a cylindrical pin is inserted into the pin hole. The cylindrical pin abuts against the end surface of the arc-shaped lifting plate.

[0009] Preferably, a transition fit is adopted between the cylindrical pin and the pin hole.

[0010] Preferably, the arc-shaped lifting plate is processed by cutting a ring-shaped piece. In the top view direction, the arc length of each arc-shaped lifting plate is 1 / 4-1 / 3 of a full circle.

[0011] Preferably, the arc length of the arc-shaped hanging plate is 1 / 4 of a whole circle, and the number of the arc-shaped hanging plates is two.

[0012] Preferably, the center hole of the lining cylinder is a stepped hole, and a step is formed at the position of the upper end hole.

[0013] Preferably, an inverted bevel is arranged at the lower end edge of the outer cylindrical surface of the lining cylinder.

[0014] In another aspect, the present application also provides a lifting method of the blisk, which adopts the lifting appliance and comprises the following steps.

[0015] S1, inserting a plurality of arc-shaped hanging plates into the center hole of the hub of the blisk, and allowing the clamping grooves of the arc-shaped hanging plates to be clamped on the hub;

[0016] S3, inserting the lining cylinder into the through hole surrounded by the plurality of arc-shaped hanging plates, and allowing the outer cylindrical surface of the lining cylinder to abut against the inner arc surface of the arc-shaped hanging plate;

[0017] S4, installing the lifting rope in the lifting hole of the arc-shaped hanging plate, and then lifting.

[0018] Preferably, in the step S2, after the lining cylinder is inserted into the through hole surrounded by the plurality of arc-shaped hanging plates, a plurality of cylindrical pins are inserted into the side wall of the lining cylinder, so that the cylindrical pins abut against the two end surfaces of the arc-shaped hanging plate and are arranged on the top surface of the hub.

[0019] Due to the adoption of the above technical solutions, the present application has the following advantages:

[0020] (1) The lifting appliance provided by the present application is suitable for lifting the blisk, and has simple structure and convenient operation.

[0021] (2) By using the lifting appliance provided by the present application, when in use, the arc-shaped hanging plate is inserted into the center hole of the hub of the blisk, and the clamping grooves of the arc-shaped hanging plate are clamped on the hub, and the outer cylindrical surface of the lining cylinder abuts against the inner arc surface of the arc-shaped hanging plate, so that the radial movement of the arc-shaped hanging plate during lifting is prevented, and the reliability of lifting is ensured.

[0022] (3) In the present application, the cylindrical pins are inserted into the pin holes of the lining cylinder, and every two cylindrical pins abut against the two end surfaces of the arc-shaped hanging plate, so that the circumferential position of the arc-shaped hanging plate is limited, the circumferential movement of the arc-shaped hanging plate during lifting is avoided, and the reliability of lifting is further ensured.

[0023] (4) In the present application, the cylindrical pins are arranged on the top surface of the hub, so that the downward sliding of the lining cylinder is limited during lifting, the outer cylindrical surface of the lining cylinder always abuts against the inner arc surface of the arc-shaped hanging plate, and the loosening of the arc-shaped hanging plate is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings described below only illustrate some of the embodiments of the present application, and all other drawings obtained by those skilled in the art without creative effort based on these drawings also belong to the protection scope of the present application.

[0025] Figure 1 is a schematic view of the whole blade disc;

[0026] Figure 2 is a schematic view of the lifting appliance provided by the present application when lifting the whole blade disc;

[0027] Figure 3 is a schematic view of the lifting appliance provided by the present application when lifting the whole blade disc; Figure 2 is a partial view of the A direction in the middle;

[0028] Figure 4 is a main sectional view of the arc-shaped lifting plate in the present application;

[0029] Figure 5 is a left view of the arc-shaped lifting plate in the present application;

[0030] Figure 6 is a top view of the arc-shaped lifting plate in the present application;

[0031] Figure 7 is a sectional view of the lining cylinder in the present application.

[0032] Brief description of the drawings: 1, arc-shaped lifting plate; 1a, clamping groove; 1b, inner arc surface; 1c, lifting hole; 1d, first arc-shaped protrusion; 1e, second arc-shaped protrusion; 2, lining cylinder; 2a, bolt hole; 2b, step; 2c, inverted bevel; 3, cylindrical pin; 100, hub. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative effort belong to the protection scope of the present application.

[0034] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications also change accordingly.

[0035] In addition, the description related to "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the same, or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of various embodiments can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor within the protection scope required by the present application.

[0036] In combination Figures 2 to 7 As shown in the drawings, in one aspect, the embodiment provides a lifting device for blisk, which comprises a plurality of arc-shaped lifting plates 1 and a lining tube 2, and a clamping groove 1a is arranged on the outer cylindrical surface of the arc-shaped lifting plate 1; the lining tube 2 is inserted into the through hole formed by the plurality of arc-shaped lifting plates 1, and the outer cylindrical surface of the lining tube 2 abuts against the inner arc surface 1b of the arc-shaped lifting plate 1; a lifting hole 1c is arranged on the arc-shaped lifting plate 1.

[0037] In combination Figure 4 As shown in the drawings, the first arc-shaped protrusion 1d and the second arc-shaped protrusion 1e are integrally formed on the outer cylindrical surface of the arc-shaped lifting plate 1, and the clamping groove 1a is formed by the upper and lower interval arrangement of the two arc-shaped protrusions. In use, the arc-shaped lifting plate 1 is inserted into the center hole of the hub 100 of the blisk, and the clamping groove 1a is clamped on the hub 100, specifically, the hub 100 is clamped between the first arc-shaped protrusion 1d and the second arc-shaped protrusion 1e.

[0038] In combination Figure 3 , Figure 7 As shown in the drawings, a plurality of pin holes 2a are formed on the side wall of the lining tube 2, and a cylindrical pin 3 is inserted into the pin hole 2a; the cylindrical pin 3 abuts against the end surface of the arc-shaped lifting plate 1. Each two cylindrical pins 3 abut against the two end surfaces of the arc-shaped lifting plate 1, which can limit the circumferential position of the arc-shaped lifting plate 1, avoid the circumferential movement of the arc-shaped lifting plate 1 during lifting, and ensure the reliability of lifting.

[0039] In order to facilitate the insertion and removal of the cylindrical pin 3, the transition fit is adopted between the cylindrical pin 3 and the pin hole 2a. The transition fit allows a certain gap or interference during assembly, which makes the components easier to install and disassemble, and reduces the difficulty of assembly and disassembly

[0040] In combination Figure 6 As shown in the drawings, the arc-shaped lifting plate 1 is processed by cutting a ring member, and in the top view direction, the arc length of each arc-shaped lifting plate 1 is 1 / 4-1 / 3 of a full circle. In order to facilitate the machining of the first arc-shaped protrusion 1d and the second arc-shaped protrusion 1e, the first arc-shaped protrusion 1d and the second arc-shaped protrusion 1e are turned on the ring member, and then the whole ring member is cut to form a single arc-shaped lifting plate 1.

[0041] In the embodiment, the arc length of the arc-shaped hanging plate 1 is 1 / 4 of a whole circle, that is, the included angle α of the arc-shaped hanging plate 1 is 90 degrees. The number of the arc-shaped hanging plates 1 is two.

[0042] In combination Figure 7 As shown in the drawings, the central hole of the lining cylinder 2 is a stepped hole, and a step 2b is formed at the position of the upper end hole. When the lining cylinder 2 is inserted into the through hole formed by the plurality of arc-shaped hanging plates 1, the worker can hold the step 2b with the back and slowly lower the lining cylinder 2 for insertion. Therefore, the purpose of setting the step 2b is to facilitate the operation of the worker.

[0043] In combination Figure 7 As shown in the drawings, an inverted bevel 2c is arranged at the lower end edge of the outer cylindrical surface of the lining cylinder 2. The inverted bevel 2c plays a guiding role, facilitating the insertion of the lining cylinder 2 into the through hole formed by the plurality of arc-shaped hanging plates 1.

[0044] On the other hand, the embodiment also provides a lifting method for the blisk, which adopts the lifting device and comprises the following steps:

[0045] S1, inserting a plurality of arc-shaped hanging plates 1 into the central hole of the hub 100 of the blisk, and allowing the clamping groove 1a of the arc-shaped hanging plate 1 to be clamped on the hub 100;

[0046] S3, inserting the lining cylinder 2 into the through hole formed by the plurality of arc-shaped hanging plates 1, and allowing the outer cylindrical surface of the lining cylinder 2 to abut against the inner arc surface 1b of the arc-shaped hanging plate 1;

[0047] S4, installing the lifting rope in the lifting hole 1c of the arc-shaped hanging plate 1, so that the lifting can be performed.

[0048] In the step S2, after the lining cylinder 2 is inserted into the through hole formed by the plurality of arc-shaped hanging plates 1, a plurality of cylindrical pins 3 are inserted into the side wall of the lining cylinder 2, so that the cylindrical pins 3 abut against the two end surfaces of the arc-shaped hanging plate 1 and the cylindrical pins 3 are arranged on the top surface of the hub 100. The cylindrical pins 3 have two functions. One is to limit the circumferential position of the arc-shaped hanging plate 1, so as to avoid the circumferential movement of the arc-shaped hanging plate 1 during lifting. The other is to limit the downward sliding of the lining cylinder 2, so as to avoid the sliding of the lining cylinder 2 out of the arc-shaped hanging plate 1.

[0049] The above only describes the preferred embodiments of the present application, and does not limit the patent scope of the present application. Any equivalent structural transformation based on the inventive concept of the present application, or direct / indirect application in other related technical fields is included in the patent protection scope of the present application.

Claims

1. A method for lifting an integral bladed disk, characterized in that, The lifting device includes multiple arc-shaped lifting plates (1) and a liner (2). A slot (1a) is provided on the outer cylindrical surface of the arc-shaped lifting plate (1). The liner (2) is inserted into the through hole formed by the multiple arc-shaped lifting plates (1), and the outer cylindrical surface of the liner (2) abuts against the inner arc surface (1b) of the arc-shaped lifting plate (1). A lifting hole (1c) is provided on the arc-shaped lifting plate (1). Multiple pin holes (2a) are provided on the side wall of the liner (2), and cylindrical pins (3) are inserted into the pin holes (2a); the cylindrical pins (3) abut against the end face of the arc-shaped hanging plate (1); Includes the following steps: S1. Insert multiple arc-shaped hanging plates (1) into the center hole of the hub (100) of the integral bladed disk, and make the slot (1a) of the arc-shaped hanging plate (1) lock onto the hub (100); S3. Insert the liner (2) into the through hole formed by multiple arc-shaped hanging plates (1), and the outer cylindrical surface of the liner (2) abuts against the inner arc surface (1b) of the arc-shaped hanging plate (1); after the liner (2) is inserted into the through hole formed by multiple arc-shaped hanging plates (1), insert multiple cylindrical pins (3) into the side wall of the liner (2), so that the cylindrical pins (3) abut against the two end faces of the arc-shaped hanging plate (1), and the cylindrical pins (3) rest on the top surface of the hub (100); S4. Install lifting ropes in the lifting holes (1c) of the arc-shaped hanging plate (1) to carry out lifting.

2. The method for lifting an integral bladed disk as described in claim 1, characterized in that, The outer cylindrical surface of the arc-shaped hanging plate (1) is integrally formed with a first arc-shaped protrusion (1d) and a second arc-shaped protrusion (1e), which are arranged at intervals to form the slot (1a).

3. The method for lifting an integral bladed disk as described in claim 1, characterized in that, The cylindrical pin (3) and the pin hole (2a) are fitted with a transition fit.

4. The method for lifting an integral bladed disk as described in claim 1, characterized in that, The arc-shaped hanging plate (1) is made by cutting a ring-shaped part. In the top view, the arc length of each arc-shaped hanging plate (1) is 1 / 4 to 1 / 3 of the whole circle.

5. The method for lifting an integral bladed disk as described in claim 4, characterized in that, The arc length of the arc-shaped hanging plate (1) is 1 / 4 of the full circle, and there are two arc-shaped hanging plates (1).

6. The method for lifting an integral bladed disk as described in claim 1, characterized in that, The central hole of the liner (2) is a stepped hole, forming a step (2b) at the upper end of the hole.

7. The method for lifting an integral bladed disk as described in claim 1, characterized in that, A chamfer (2c) is provided at the lower edge of the outer cylindrical surface of the liner (2).

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