Lifting appliance for gas turbine blade

Abstract

The lifting appliance comprises a lifting appliance main body, the lifting appliance main body comprises a transverse extension part, a first clamping jaw part and a second clamping jaw part, and the transverse extension part comprises a columnar transverse extension fixed part and a transverse extension moving part; the transverse extension fixed part is configured to be hollow so as to have an internal space for receiving a part of the transverse extension moving part, so that the transverse extension moving part can telescopically move in the transverse direction relative to the transverse extension fixed part, and the lifting appliance main body further comprises a first connecting mechanism arranged at the first end of the transverse extension fixed part; the first coupling mechanism is configured to detachably secure the laterally extending moving portion to the laterally extending fixed portion. Through the arrangement mode disclosed by the invention, convenient grasping can be realized, and the applicability of the lifting appliance to blades with different sizes is improved.

Description

Technical Field

[0001] The present disclosure relates to a hanger, in particular to a hanger for gas turbine blades. Background Art

[0002] Common gas turbine blades are heavier after processing (for example, 4000F V4 blades). When conducting torque tests, operators are required to carry the gas turbine blades to the test equipment each time and move them down after the test. Such repetitive handling operations every day are more harmful to the operator. Moreover, in the case of manual handling, there is a risk of falling from the hands and causing the product to be scrapped. In addition, the blade needs to be installed on the hanger with the back curve facing up. For example, for the 4000F V4 blade, the angle between the blade and the fixture is 20.05°, but conventional lifting tools cannot meet this requirement. Utility Model Content

[0003] In order to overcome the above-mentioned defects existing in the prior art, the present disclosure provides a hanger for a gas turbine blade, the gas turbine blade comprising a blade profile and a blade root connected to each other as an integral whole, the blade root having a protruding platform at a portion connected to the blade profile, the hanger comprising a hanger body, the hanger body comprising: a transverse extension portion, the transverse extension portion having a rod-like shape and extending in a transverse direction; and a first claw portion and a second claw portion, the first claw portion and the second claw portion being arranged at both ends of the transverse extension portion, the first claw portion and the second claw portion being configured to be able to be clamped on opposite transverse edges of the blade profile, the transverse extension portion comprising a columnar transverse extension fixing portion and a columnar transverse extension moving portion, the transverse extension fixing portion being configured to be hollow so as to have an internal space to receive a portion of the transverse extension moving portion, so that the The transversely extending movable portion can be telescopically moved along the transverse direction relative to the transversely extending fixed portion, each of the transversely extending fixed portion and the transversely extending movable portion has a first end and a second end opposite to each other, the first end of the transversely extending fixed portion has an opening, the opening is connected to the internal space of the transversely extending fixed portion, the first end of the transversely extending movable portion is inserted into the internal space of the transversely extending fixed portion via the opening, and the first claw portion and the second claw portion are respectively arranged at the second end of the transversely extending fixed portion and the second end of the transversely extending movable portion, and the sling body also includes a first connecting mechanism arranged at the first end of the transversely extending fixed portion, the first connecting mechanism is configured to enable the transversely extending movable portion to be detachably fixed to the transversely extending fixed portion. Accordingly, the sling can be conveniently grasped and the applicability of the sling to blades of different sizes is improved.

[0004] Further, the first connection mechanism includes: a first fastening screw; a through hole, the through hole being arranged at the first end of the transversely extending fixed portion; and a plurality of first screw holes, the plurality of first screw holes being arranged side by side along the transverse direction on the transversely extending movable portion and close to the first end of the transversely extending movable portion, the first fastening screw being configured to pass through the through hole and be connected to any one of the plurality of first screw holes. Accordingly, convenient assembly and disassembly of the transversely extending movable portion and the transversely extending fixed portion can be achieved.

[0005] Furthermore, the plurality of first screw holes are arranged at equal intervals from each other along the transverse direction. Accordingly, the interval between the two claw portions can be accurately adjusted.

[0006] Further, the first claw portion includes a first claw and a first connecting rod connected to each other, the first connecting rod extends in a vertical direction perpendicular to the lateral extension portion and is connected to the second end of the lateral extension fixing portion, and the second claw portion includes a second claw and a second connecting rod connected to each other, the second connecting rod extends in a vertical direction perpendicular to the lateral extension portion and is connected to the second end of the lateral extension moving portion. Accordingly, the hanger can be conveniently connected to the blade profile of the gas turbine blade.

[0007] Furthermore, the sling body further comprises a longitudinal extension portion, the longitudinal extension portion extending in a longitudinal direction perpendicular to the transverse direction and fixed to the transverse extension fixing portion, and a through hole extending in the transverse direction is provided in the longitudinal extension portion for connecting a lifting ring. Accordingly, a firm and stable lifting of the sling can be achieved.

[0008] Furthermore, the hanger further includes a longitudinal extension rod extending in a longitudinal direction perpendicular to the transverse direction and having a first end and a second end opposite to each other, the first end of the longitudinal extension rod being fixed to the transverse extension fixing portion; and a second connection mechanism provided at the second end of the longitudinal extension rod, the second connection mechanism being configured to removably fix the hanger to the gas turbine blade. Accordingly, the connection stability between the hanger and the gas turbine blade can be further improved.

[0009] Further, the second connection mechanism includes: a connection mechanism body, the connection mechanism body includes a vertical screw and a U-shaped component connected to each other, the U-shaped component includes a base and two vertical wings extending downward from both ends of the base in a vertical direction perpendicular to the longitudinal extension rod, one end of the vertical screw is provided with a screw head and the other end of the vertical screw is fixed to the base of the U-shaped component, the vertical screw is configured to be rotatably connected to the longitudinal extension rod through a vertical through hole provided at the second end of the longitudinal extension rod; and two second fastening screws facing each other, the two second fastening screws respectively pass through second screw holes provided in the two vertical wings, so that the protruding platform of the blade root can be clamped between the two second fastening screws. Accordingly, the clamping and releasing of the blade root of the gas turbine blade by the hanger can be conveniently achieved.

[0010] Furthermore, the position where the longitudinal extension part is connected to the transverse extension fixing part is closer to the first end of the transverse extension fixing part than the position where the longitudinal extension rod is connected to the transverse extension fixing part. Accordingly, the lifting can be made more stable.

[0011] Furthermore, the lifting device further comprises a handle portion, and the handle portion is fixed at the first end of the transversely extending fixing portion. Accordingly, it is convenient for a user to manually support the gas turbine blade during lifting.

[0012] Furthermore, the transversely extending fixed portion and the transversely extending movable portion have a square column shape or a cylindrical shape. Accordingly, the processing of the sling body can be facilitated. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the present disclosure. The illustrative embodiments of the present disclosure and their descriptions are used to explain the present disclosure and do not constitute an improper limitation on the present disclosure. In the accompanying drawings:

[0014] Figure 1 is a schematic perspective view showing a gas turbine blade of the present disclosure, wherein the gas turbine blade is clamped by the hanger of the present disclosure;

[0015] Figure 2 is a schematic perspective view showing a spreader of the present disclosure;

[0016] Figure 3 yes Figure 2 A schematic side view of the spreader is shown;

[0017] Figure 4 yes Figure 2 A schematic top view of the spreader shown; and

[0018] Figure 5 yes Figure 2 A schematic rear view of the spreader is shown.

[0019] Reference numerals list

[0020] 10 Gas turbine blades

[0021] 101 Leaf Type

[0022] 101a Horizontal edge

[0023] 102 Leaf Root

[0024] 102a Extended platform

[0025] 100 Spreader

[0026] 1. Lifting device body

[0027] 11 lateral extension

[0028] 111 Laterally extending fixing portion

[0029] 112 Horizontal extension moving part

[0030] 12a First claw portion

[0031] 12a1 First jaw

[0032] 12a2 First connecting rod

[0033] 12b: second claw portion

[0034] 12b1 Second jaw

[0035] 12b2 Second connecting rod

[0036] 13 longitudinal extension

[0037] 2 Longitudinal extension rods

[0038] 3 handle part

[0039] C1 first connection mechanism

[0040] C2 second connection mechanism

[0041] C21 Connector body

[0042] C211 Vertical Screw

[0043] C211a Screw head

[0044] C212 base

[0045] C213 Vertical Wing

[0046] B1 first fastening screw

[0047] B2 Second fastening screw

[0048] R-ring

[0049] X-horizontal direction

[0050] Y longitudinal direction

[0051] Z vertical direction DETAILED DESCRIPTION

[0052] The technical solutions in the embodiments of the present disclosure will be described in detail below in conjunction with the drawings in the embodiments of the present disclosure. It should be noted that the embodiments and features in the embodiments of the present disclosure can be combined with each other without conflict.

[0053] In the following detailed description, reference is made to the accompanying drawings that form a part of this specification, in which specific embodiments in which the present disclosure may be implemented are shown by way of example. With respect to the accompanying drawings, directional terms such as "top", "bottom", "inside", "outside", "up", "down", "front", "back", etc. are used with reference to the direction of the accompanying drawings being described. Since the components of the embodiments of the present disclosure may be placed in many different directions, the directional terms are used for illustration only and are not intended to be limiting. It should be understood that other embodiments may be used and that structural or logical changes may be made without departing from the scope of the present disclosure. Therefore, the following detailed description should not be construed in a limiting sense, and the present disclosure is defined by the appended claims.

[0054] With reference to the accompanying drawings, the present disclosure provides a hanger 100 for a gas turbine blade 10. Figure 1 As shown, the gas turbine blade 10 may include an airfoil 101 and a blade root 102 connected to each other as an integral whole, and the blade root 102 has a protruding platform 102 a at a portion connected to the airfoil 101 .

[0055] refer to Figures 2 to 5 As shown, the hanger 100 may include a hanger body 1, and the hanger body 1 may generally include a transverse extension portion 11 and a first claw portion 12a and a second claw portion 12b. The transverse extension portion 11 may have a rod-like shape and extend along the transverse direction X. The first claw portion 12a and the second claw portion 12b may be provided at both ends of the transverse extension portion 11, and the first claw portion 12a and the second claw portion 12b are configured to be able to be clamped on opposite transverse edges 101a of the airfoil 101.

[0056] The transversely extending portion 11 may include a columnar transversely extending fixed portion 111 and a columnar transversely extending movable portion 112. The transversely extending fixed portion 111 is configured to be hollow so as to have an internal space to receive a portion of the transversely extending movable portion 112, so that the transversely extending movable portion 112 can telescopically move relative to the transversely extending fixed portion 111 along the transverse direction X. Each of the transversely extending fixed portion 111 and the transversely extending movable portion 112 has a first end and a second end opposite to each other, the first end of the transversely extending fixed portion 111 has an opening, the opening is connected to the internal space of the transversely extending fixed portion 111, and the first end of the transversely extending movable portion 112 is inserted into the internal space of the transversely extending fixed portion 111 via the opening. The first claw portion 12a and the second claw portion 12b are respectively disposed at the second end of the transversely extending fixed portion 111 and the second end of the transversely extending movable portion 112. The spreader body 1 may further include a first connection mechanism C1 disposed at a first end of the laterally extending fixing portion 111 , the first connection mechanism C1 being configured to detachably fix the laterally extending moving portion 112 to the laterally extending fixing portion 111 .

[0057] Preferably, the first connection mechanism C1 may include: a first fastening screw B1; a through hole provided at the first end of the transversely extending fixed portion 111; and a plurality of first screw holes arranged side by side on the transversely extending movable portion 112 along the transverse direction X and close to the first end of the transversely extending movable portion 112. The first fastening screw B1 is configured to pass through the through hole and connect to any one of the plurality of first screw holes. Of course, the specific form of the first connection mechanism C1 of the present disclosure is not limited thereto, for example, the first connection mechanism C1 may also have other forms such as a buckle and a clamp.

[0058] In particular, the plurality of first screw holes may be arranged along the transverse direction X at equal intervals from each other.

[0059] Preferably, the first claw portion 12a may include a first claw 12a1 and a first connecting rod 12a2 connected to each other, the first connecting rod 12a2 extends along a vertical direction Z perpendicular to the lateral extension portion 11 and is connected to the second end of the lateral extension fixing portion 111, and the second claw portion 12b may include a second claw 12b1 and a second connecting rod 12b2 connected to each other, the second connecting rod 12b2 extends along a vertical direction Z perpendicular to the lateral extension portion 11 and is connected to the second end of the lateral extension moving portion 112.

[0060] In addition, the sling body 1 may further include a longitudinal extension portion 13, which extends along a longitudinal direction Y perpendicular to the transverse direction X and is fixed to the transverse extension fixing portion 111. A through hole extending along the transverse direction X is provided in the longitudinal extension portion 13 to connect a lifting ring R so as to be lifted by a lifting machine.

[0061] In addition, the hanger 100 may further include a longitudinally extending rod 2 and a second connection mechanism C2 provided at a second end of the longitudinally extending rod 2. The longitudinally extending rod 2 may extend along a longitudinal direction Y perpendicular to the transverse direction X and have a first end and a second end opposite to each other, and the first end of the longitudinally extending rod 2 is fixed to the transversely extending fixing portion 111. The second connection mechanism C2 may be configured to removably fix the hanger 100 to the gas turbine blade 10.

[0062] In particular, the second connection mechanism C2 may include a connection mechanism body C21 and two second fastening screws B2 facing each other. The connection mechanism body C21 includes a vertical screw rod C211 and a U-shaped component connected to each other, and the U-shaped component includes a base C212 and two vertical wings C213 extending downward from both ends of the base C212 in a vertical direction Z perpendicular to the longitudinal extension rod 2. One end of the vertical screw rod C211 is provided with a screw head C211a and the other end of the vertical screw rod C211 is fixed to the base C212 of the U-shaped component, and the vertical screw rod C211 is configured to be rotatably connected to the longitudinal extension rod 2 through a vertical through hole provided at the second end of the longitudinal extension rod 2. The two second fastening screws B2 pass through the second screw holes provided in the two vertical wings C213, respectively, so that the protruding platform 102a of the blade root 102 can be clamped between the two second fastening screws B2. In particular, another screw head is provided near the middle of the vertical screw rod C211, and when the connecting mechanism body C21 is connected to the longitudinal extension rod 2, the screw head C211a and the other screw head respectively contact the top surface and the bottom surface of the longitudinal extension rod 2. In particular, the vertical screw rod C211 can be centrally arranged between the two vertical wings C213.

[0063] like Figure 4 As best shown, the location where the longitudinal extending portion 13 is connected to the transverse extending fixing portion 111 may be closer to the first end of the transverse extending fixing portion 111 than the location where the longitudinal extending rod 2 is connected to the transverse extending fixing portion 111 .

[0064] In addition, the sling 100 may further include a handle portion 3, which is fixed at a first end of the transversely extending fixing portion 111. In particular, the handle portion 3 may have a curved shape as shown in the figure, but the present disclosure is not limited thereto, and for example, the handle portion 3 may also be straight. In particular, the handle portion 3 and the first fastening screw B1 may be arranged on opposite sides of the transversely extending fixing portion 111.

[0065] In particular, the laterally extending fixed portion 111 and the laterally extending moving portion 112 may have a square column shape or a cylindrical shape.

[0066] The above description is only a preferred embodiment of the present disclosure and is not intended to limit the present disclosure. For those skilled in the art, the present disclosure may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. A hanger for a gas turbine blade, the gas turbine blade (10) comprising a blade profile (101) and a blade root (102) connected to each other as one body, the blade root (102) having a protruding platform (102a) at a portion connected to the blade profile (101), the hanger (100) comprising a hanger body (1), the hanger body (1) comprising: a transverse extension portion (11), the transverse extension portion (11) having a rod-like shape and extending along a transverse direction (X); as well as a first claw portion (12a) and a second claw portion (12b), wherein the first claw portion (12a) and the second claw portion (12b) are arranged at two ends of the transverse extension portion (11), and the first claw portion (12a) and the second claw portion (12b) are configured to be clamped on opposite transverse edges (101a) of the blade profile (101), The invention is characterized in that the transverse extension portion (11) comprises a columnar transverse extension fixing portion (111) and a columnar transverse extension movable portion (112), wherein the transverse extension fixing portion (111) is configured to be hollow so as to have an internal space for receiving a part of the transverse extension movable portion (112), so that the transverse extension movable portion (112) can be telescopically moved relative to the transverse extension fixing portion (111) along the transverse direction (X), Each of the transversely extending fixed portion (111) and the transversely extending movable portion (112) has a first end and a second end opposite to each other, the first end of the transversely extending fixed portion (111) has an opening, the opening is communicated with the internal space of the transversely extending fixed portion (111), the first end of the transversely extending movable portion (112) is inserted into the internal space of the transversely extending fixed portion (111) via the opening, and the first claw portion (12a) and the second claw portion (12b) are respectively arranged at the second end of the transversely extending fixed portion (111) and the second end of the transversely extending movable portion (112), and The sling body (1) further comprises a first connection mechanism (C1) arranged at the first end of the transversely extending fixed portion (111), wherein the first connection mechanism (C1) is configured to enable the transversely extending movable portion (112) to be detachably fixed to the transversely extending fixed portion (111).

2. The hanger for gas turbine blades according to claim 1, characterized in that: The first connecting mechanism (C1) comprises: First fastening screw (B1); a through hole, the through hole being arranged at the first end of the transversely extending fixing portion (111); and a plurality of first screw holes, the plurality of first screw holes being arranged side by side along the transverse direction (X) on the transversely extending movable portion (112) and close to the first end of the transversely extending movable portion (112), The first fastening screw (B1) is configured to be connectable to any one of the plurality of first screw holes through the through hole.

3. The hanger for gas turbine blades according to claim 2, characterized in that: The plurality of first screw holes are arranged at equal intervals from each other along the transverse direction (X).

4. The hanger for gas turbine blades according to claim 1, characterized in that: The first claw portion (12a) includes a first claw (12a1) and a first connecting rod (12a2) connected to each other, the first connecting rod (12a2) extending in a vertical direction (Z) perpendicular to the transverse extension portion (11) and connected to the second end of the transverse extension fixing portion (111), and The second claw portion (12b) includes a second claw (12b1) and a second connecting rod (12b2) connected to each other, and the second connecting rod (12b2) extends along a vertical direction (Z) perpendicular to the transverse extension portion (11) and is connected to the second end of the transverse extension moving portion (112).

5. The hanger for gas turbine blades according to claim 1, characterized in that: The sling body (1) also includes a longitudinal extension portion (13), which extends along a longitudinal direction (Y) perpendicular to the transverse direction (X) and is fixed to the transverse extension fixing portion (111), and a through hole extending along the transverse direction (X) is provided in the longitudinal extension portion (13) for connecting a sling ring (R).

6. The hanger for gas turbine blades according to claim 5, characterized in that: The sling (100) further comprises: a longitudinal extension rod (2), the longitudinal extension rod (2) extending along a longitudinal direction (Y) perpendicular to the transverse direction (X) and having a first end and a second end opposite to each other, the first end of the longitudinal extension rod (2) being fixed to the transverse extension fixing portion (111); and A second connection mechanism (C2) is provided at the second end of the longitudinally extending rod (2), the second connection mechanism (C2) being configured to removably secure the hanger (100) to the gas turbine blade (10).

7. The hanger for gas turbine blades according to claim 6, characterized in that: The second connection mechanism (C2) comprises: A connecting mechanism body (C21), the connecting mechanism body (C21) comprising a vertical screw rod (C211) and a U-shaped component connected to each other, the U-shaped component comprising a base (C212) and two vertical wings (C213) extending downward from both ends of the base (C212) along a vertical direction (Z) perpendicular to the longitudinal extension rod (2), one end of the vertical screw rod (C211) is provided with a screw head (C211a) and the other end of the vertical screw rod (C211) is fixed to the base (C212) of the U-shaped component, and the vertical screw rod (C211) is configured to pass through a vertical through hole provided at the second end of the longitudinal extension rod (2) so as to be rotatably connected to the longitudinal extension rod (2); and Two second fastening screws (B2) facing each other, the two second fastening screws (B2) respectively pass through second screw holes arranged in the two vertical wing portions (C213), so that the protruding platform (102a) of the blade root (102) can be clamped between the two second fastening screws (B2).

8. The hanger for gas turbine blades according to claim 6, characterized in that: The position where the longitudinal extension portion (13) is connected to the transverse extension fixing portion (111) is closer to the first end of the transverse extension fixing portion (111) than the position where the longitudinal extension rod (2) is connected to the transverse extension fixing portion (111).

9. The hanger for gas turbine blades according to claim 1, characterized in that: The lifting device (100) further comprises a handle portion (3), wherein the handle portion (3) is fixed at the first end of the transversely extending fixing portion (111).

10. The hanger for gas turbine blades according to claim 1, characterized in that: The transversely extending fixed portion (111) and the transversely extending movable portion (112) have a square column shape or a cylindrical shape.

Images