A turbine blade hoisting device

Abstract

This utility model provides a turbine blade hoisting device. The turbine blade includes a blade body, a mounting hole extending radially from the root of the blade body, and a hoisting hole extending axially from the blade body. The device includes a first hoisting mechanism selectively disposed within the mounting hole, and a second hoisting mechanism selectively disposed within the hoisting hole. Both the first and second hoisting mechanisms are configured to allow relative fixation with a hoisting rope, thereby enabling the turbine blade to be hoisted in a balanced manner. In this way, the area of ​​the stress point on the blade body is increased when hoisting the blade body, thereby reducing the pressure generated on the blade body. Furthermore, with this configuration, the blade body can be hoisted in a balanced manner due to the presence of the first and second hoisting mechanisms.

Description

Technical Field

[0001] This utility model relates to the field of turbine blade lifting technology, and in particular to a turbine blade lifting device. Background Technology

[0002] like Figure 1 As shown, during the installation and maintenance of turbine blades 10, it is usually necessary to detach the blade body 101 from the turbine body (not shown in the figure) and move the blade body 101 to a horizontal plane (not shown in the figure), or to move the blade body 101 from the horizontal plane onto the turbine body. Due to the large weight of the blade body 101, in existing technology, hoisting equipment (not shown in the figure) is generally used to lift the blade body 101, thereby achieving the installation or removal of the blade body 101.

[0003] However, in practical industrial applications, the lifting rope is typically passed directly through the mounting holes 102 and 103, and then a force is applied to the lifting rope by the lifting equipment, thereby moving the blade body 101. While this method allows for the lifting of the blade body 101, the small contact area and high pressure generated by the direct contact between the lifting rope and the blade body 101 can easily damage it. Furthermore, this method can also cause the blade body 101 to tilt during lifting. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a turbine blade hoisting device. To achieve the above objectives, this utility model adopts the following technical solution:

[0005] A turbine blade hoisting device, wherein the turbine blade includes a blade body, a mounting hole extending radially from the root of the blade body, and a hoisting hole extending axially from the blade body.

[0006] The device includes a first lifting mechanism selectively disposed within a mounting hole, and a second lifting mechanism selectively disposed within a lifting hole. Both the first and second lifting mechanisms are configured to allow relative fixation with the lifting rope, thereby enabling the turbine blades to be lifted in a balanced manner.

[0007] Furthermore, the first hoisting mechanism includes a force-bearing part passing through the mounting hole, and a connecting part disposed on the force-bearing part for being fixed together with the hoisting rope in a selective manner.

[0008] Furthermore, the connecting portion includes a fastener that passes through the force-bearing portion and allows it to be fixed relative to the force-bearing portion, and a connector that is disposed on the fastener in a relative manner and extends outward and allows it to be connected to the hoisting rope.

[0009] Furthermore, the connector includes a fixing post fixedly mounted on the fixing member and extending outward, and a limiting disc mounted on the fixing post and extending radially outward along the fixing post to limit the lifting rope mounted on the fixing post.

[0010] Furthermore, the first hoisting mechanism also includes a compensation part disposed in the mounting hole. There are two compensation parts, each of which is constructed as a semi-ring structure. The force-bearing part includes an abutment part, the cross-section of which is trapezoidal, so that as the abutment part continues to enter the mounting hole, the force applied to the compensation part continuously increases.

[0011] Furthermore, the force-bearing part also includes a driving part connected to the abutting part. An external thread is provided on the driving part along the axial direction, and the external thread is allowed to cooperate with the fixing member so that after the fixing member and the compensation part abut together, continuous rotation of the fixing member can drive the abutting part to move within the mounting hole.

[0012] Furthermore, a radially outwardly extending limiting part is provided on the drive unit to restrict the continuous axial outward movement of the fixing member along the drive unit.

[0013] Furthermore, the second hoisting mechanism includes a receiving part for receiving the blade body, and a hoisting part provided on the receiving part and extending upward for passing through the hoisting hole. The hoisting part is also provided with a force-bearing hole for fixing together with the hoisting rope.

[0014] Furthermore, the lifting part extends upward along the center of the receiving part so that the centers of gravity of the lifting part and the receiving part are aligned with each other.

[0015] Furthermore, radially outward-extending reinforcing ribs are provided on the receiving and lifting parts to reinforce the connection between them.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] This invention includes a first lifting mechanism and a second lifting mechanism, which are respectively located in the mounting hole and the lifting hole, and respectively abut against each other. Furthermore, the first and second lifting mechanisms are configured to be fixed relative to the lifting ropes. This increases the area of ​​the stress points on the blade body during lifting, thereby reducing the pressure on the blade body. In addition, this configuration allows for balanced lifting of the blade body due to the presence of the first and second lifting mechanisms. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0019] Figure 1 This is a schematic diagram of the overall structure of a water turbine blade in the prior art;

[0020] Figure 2 This is a schematic diagram of the overall structure of the first hoisting mechanism according to an embodiment of the present utility model;

[0021] Figure 3 This is a schematic diagram of the overall structure of the second hoisting mechanism according to an embodiment of the present invention;

[0022] In the above figures: turbine blade 10, blade body 101, mounting hole 102, lifting hole 103, first lifting mechanism 1, force-bearing part 11, abutment part 111, drive part 112, limiting part 113, connecting part 12, fixing part 121, connecting part 122, fixing column 1221, limiting plate 1222, compensation part 13, second lifting mechanism 2, receiving part 21, lifting part 22, force-bearing hole 23, reinforcing rib 24. Detailed Implementation

[0023] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0024] To better understand the purpose, structure, and function of this utility model, the following detailed description of a turbine blade hoisting device is provided in conjunction with the accompanying drawings.

[0025] like Figure 1 As shown, the turbine blade 10 includes a blade body 101, a mounting hole 102 extending radially from the root of the blade body 101, and a lifting hole 103 extending axially from the blade body 101. The mounting hole 102 is configured to correspond to a mounting position on the turbine body (not shown in the figure).

[0026] In this way, the mounting hole 102 and the mounting position of the turbine body together form a space to accommodate the mounting component (not shown in the figure). This allows the turbine blades 10 and the turbine body to be fixed together relatively. It should be noted that the structure of the turbine blades 10, the turbine body, and the mounting component, as well as their connection relationships, are well known to those skilled in the art.

[0027] Figure 2 , 3 The schematic diagram illustrates the overall structure of the turbine blade hoisting device according to this utility model. (The remaining text appears to be incomplete and possibly contains errors.) Figure 2 In the embodiment shown, the turbine blade hoisting device includes a first hoisting mechanism 1, which is configured to allow selective placement within the mounting hole 102 and to be fixed relative to the blade body 101.

[0028] At the same time, such as Figure 3 As shown, the device further includes a second lifting mechanism 2, which is configured to be selectively disposed in the lifting hole 103 and to be fixed relative to the blade body 101. It should be noted that both the first lifting mechanism 1 and the second lifting mechanism 2 are configured to be fixed relative to a lifting rope (not shown in the figure), and the lifting rope is configured to be interconnected with lifting equipment (cranes and the like).

[0029] In this way, the first lifting mechanism 1 and the second lifting mechanism 2 can each become a fulcrum of force when lifting the blade body 101. Specifically, in this configuration, the force from the lifting equipment can be transmitted along the lifting rope to the first lifting mechanism 1 and the second lifting mechanism 2 respectively, thereby driving the blade body 101 to move.

[0030] Furthermore, it should be noted that during this process, the magnitude of the applied force can be adjusted by adjusting the lever arm formed by the hoisting rope with the first hoisting mechanism 1 and the second hoisting mechanism 2, thereby hoisting the blade body 101 in a balanced manner.

[0031] In this configuration, when the blade body 101 needs to be hoisted, the first hoisting mechanism 1 and the second hoisting mechanism 2 are respectively installed in the mounting hole 102 and the hoisting hole 103, and the first hoisting mechanism 1 and the second hoisting mechanism 2 are respectively fixed to the blade body 101.

[0032] Simultaneously, lifting ropes (not shown in the figure) are fixedly installed on the first lifting mechanism 1 and the second lifting mechanism 2, respectively, and the lengths between the lifting ropes and the first lifting mechanism 1 and the second lifting mechanism 2 are adjusted until the lever arm formed between the lifting ropes and the first lifting mechanism 1 and the second lifting mechanism 2 allows the blade body 101 to be lifted in a balanced manner. Furthermore, the lifting ropes and lifting equipment (not shown in the figure) are connected together. This completes the arrangement of the device.

[0033] At this point, the hoisting equipment is activated, causing it to continuously exert force on the hoisting ropes. During this process, the force is transmitted along the hoisting ropes to the first hoisting mechanism 1 and the second hoisting mechanism 2, thereby causing the first hoisting mechanism 1 and the second hoisting mechanism 2 to move the blade body 101. Thus, the blade body 101 is hoisted in a balanced manner.

[0034] In one embodiment, such as Figure 2 As shown, the first hoisting mechanism 1 includes a force-receiving part 11 passing through the mounting hole 102, and a connecting part 12 disposed on the force-receiving part 11 for selectively fixing to the hoisting rope. In this way, the force from the connecting part 12 can be transmitted to the force-receiving part 11, thereby driving the blade body 101 to move.

[0035] In this embodiment, as Figure 2 As shown, the connecting portion 12 includes a fixing member 121 that passes through the force-bearing portion 11 and allows it to be fixed relative to the force-bearing portion 11, and a connecting member 122 that is disposed on the fixing member 121 and extends outward in a relative manner and allows it to be connected to the lifting rope. In this way, the lifting rope can be connected to the connecting members 122 located on both sides of the fixing member 121.

[0036] This further increases the number of fulcrums for lifting the blade body 101. Specifically, in this configuration, both connecting parts 122 and the second lifting mechanism 2 can all serve as fulcrums. This enables three-point lifting, thereby further balancing the movement of the blade body 101.

[0037] In one embodiment, such as Figure 2 As shown, the connector 122 includes a fixing post 1221 fixedly mounted on the fixing member 121 and extending outward, and a limiting plate 1222 mounted on the fixing post 1221 and extending radially outward along the fixing post 1221. The lifting rope can be selectively mounted on the fixing post 1221. In this way, the limiting plate 1222 can limit the movement of the lifting rope, thereby preventing the lifting rope from disengaging from the first lifting mechanism 1.

[0038] According to a preferred embodiment of the present invention, such as Figure 2 As shown, the first hoisting mechanism 1 further includes a compensation part 13 disposed within the mounting hole 102. Two compensation parts 13 are provided, each constructed as a semi-ring structure, with the curvature of its outer radial side approximately equal to the curvature of the mounting hole 102. In this manner, when the compensation part 13 is disposed within the mounting hole 102, its outer radial side can abut against the mounting hole 102.

[0039] At the same time, such as Figure 2 As shown, the force-bearing part 11 includes an abutment part 111. In this embodiment, the cross-section of the abutment part 111 is trapezoidal. With this configuration, as the abutment part 111 continues to enter the mounting hole 102, the abutment part 111 will continuously increase the force applied to the compensation part 13. This allows the compensation part 13 to further abut against the mounting hole 102, thereby further strengthening the connection between the first lifting mechanism 1 and the blade body 101.

[0040] In one embodiment, such as Figure 2 As shown, the force-receiving part 11 also includes a driving part 112 connected to the abutment part 111. An external thread is provided on the driving part 112 along the axial direction, allowing the external thread to engage with the fixing member 121. In this way, after the fixing member 121 abuts against the compensation part 13, continuous rotation of the fixing member 121 can drive the abutment part 111 to move within the mounting hole 102. Simultaneously, this arrangement also allows the fixing member 121 and the force-receiving part 11 to be relatively fixed together.

[0041] Specifically, in this configuration, the abutment portion 111 can be moved along the mounting hole 102 by rotating the fixing member 121. As a result, the compensation portion 13 can be stably abutted against the mounting hole 102 or disengaged from the mounting hole 102, thereby allowing the first lifting mechanism 1 to be installed on the blade body 101 or removed from the blade body 101.

[0042] According to a preferred embodiment of the present invention, such as Figure 2 As shown, the axial length of the compensation part 13 is set to be approximately equal to the axial length of the mounting hole 102. With this configuration, when the compensation part 13 is positioned within the mounting hole 102, its inner axial side can abut against the mounting hole 102. Therefore, when the fixing member 121 and the compensation part 13 abut against each other, the compensation part 13 can stably support the fixing member 121 axially, thereby preventing the fixing member 121 from driving the compensation part 13 to move during rotation.

[0043] In one embodiment, such as Figure 2 As shown, a limiting part 113 extending radially outward is also provided on the driving part 112. The limiting part 113 is configured to allow it to abut against the fixing member 121 to limit the continuous axial outward movement of the fixing member 121 along the driving part 112.

[0044] In one embodiment, such as Figure 3 As shown, the second hoisting mechanism 2 includes a receiving portion 21 for receiving the blade body 101, and a hoisting portion 22 disposed on the receiving portion 21 and extending upward, the hoisting portion 22 being configured to allow passage through the hoisting hole 103.

[0045] Specifically, such as Figure 3 As shown, the radial distance of the receiving part 21 is set to be greater than that of the lifting part 22. Meanwhile, the lifting part 22 is also provided with force-receiving holes 23 for fixing relative to the lifting rope. In this way, the force from the lifting rope can be transmitted along the lifting part 22 to the receiving part 21, thereby causing the receiving part 21 to drive the blade body 101 to move.

[0046] According to a preferred embodiment of the present invention, such as Figure 3 As shown, the lifting part 22 extends upward along the center position of the receiving part 21, so that the centers of gravity of the lifting part 22 and the receiving part 21 are aligned with each other. This allows the lifting part 22 and the receiving part 21 to be stably connected together.

[0047] According to a preferred embodiment of the present invention, such as Figure 3 As shown, radially outwardly extending reinforcing ribs 24 are also provided on the receiving part 21 and the lifting part 22. In this embodiment, the reinforcing ribs are distributed in a corresponding manner. In this way, the connection between the receiving part 21 and the lifting part 22 can be further strengthened.

[0048] The operation of the turbine blade hoisting device according to this utility model is as follows.

[0049] First, the compensation part 13 is disposed within the mounting hole 102, with its radially outer side and axially inner side respectively abutting against the mounting hole 102. Simultaneously, the force-bearing part 11 is inserted into the mounting hole 102, with the abutting part 111 and the fixing member 121 abutting against the radially inner side and axially outer side of the compensation part 13 respectively. At this time, a force is applied to the fixing member 121, causing it to rotate.

[0050] During this process, the fixing member 121 continuously engages with the driving part 112, thereby driving the abutment part 111 to move inward in the mounting hole 102. During this process, the abutment part 111 continuously applies force to the compensation part 13, causing the compensation part 13 and the mounting hole 102 to abut against each other. Thus, the first lifting mechanism 1 is mounted on the blade body 101.

[0051] Furthermore, the lifting part 22 is passed through the lifting hole 103, and the receiving part 21, which is connected to the lifting hole 103, and the blade body 101 are brought into contact with each other. At this time, lifting ropes (not shown) are respectively placed on the stress hole 23 and the fixing post 1221, and the lifting ropes are fixed to the stress hole 23 and the fixing post 1221 respectively. Then, the lifting ropes and the lifting equipment (not shown) are connected to each other. Thus, the arrangement of this device is completed.

[0052] At this point, the hoisting equipment is activated, causing it to continuously exert force on the hoisting rope. During this process, the force is transmitted along the hoisting rope to the force-receiving hole 23 and the fixed column 1221, thereby causing the first hoisting mechanism 1 and the second hoisting mechanism 2 to move the blade body 101. Thus, the blade body 101 is hoisted in a balanced manner.

[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A turbine blade hoisting device, wherein the turbine blade (10) includes a blade body (101), a mounting hole (102) disposed at the root of the blade body (101) and extending radially, and a hoisting hole (103) disposed on the blade body (101) and extending axially. characterized in that The device includes a first hoisting mechanism (1) selectively disposed in a mounting hole (102) and a second hoisting mechanism (2) selectively disposed in a hoisting hole (103), both the first hoisting mechanism (1) and the second hoisting mechanism (2) being configured to allow relative fixation with the hoisting rope, thereby enabling the turbine blade (10) to be hoisted in a balanced manner.

2. The hydraulic turbine blade hoisting device according to claim 1, characterized in that The first hoisting mechanism (1) includes a force-bearing part (11) passing through the mounting hole (102) and a connecting part (12) provided on the force-bearing part (11) for being fixed together with the hoisting rope in a selective manner.

3. The hydraulic turbine blade hoisting device according to claim 2, characterized in that The connecting part (12) includes a fastener (121) that passes through the force-bearing part (11) and allows it to be fixed relative to the force-bearing part (11), and a connector (122) that is disposed on the fastener (121) and extends outward in a relative manner and allows it to be connected to the hoisting rope.

4. The hydraulic turbine blade hoisting device according to claim 3, characterized in that The connector (122) includes a fixing post (1221) fixedly mounted on the fixing member (121) and extending outward, and a limiting plate (1222) mounted on the fixing post (1221) and extending outward radially along the fixing post (1221) to limit the hoisting rope mounted on the fixing post (1221).

5. The hydraulic turbine blade hoisting device of claim 4, wherein The first hoisting mechanism (1) further includes a compensation part (13) disposed in the mounting hole (102). The compensation part (13) is provided in two parts, and both are constructed as a semi-ring structure. The force-bearing part (11) includes an abutment part (111). The cross section of the abutment part (111) is set as a trapezoid, so as the abutment part (111) continues to enter the mounting hole (102), the force applied to the compensation part (13) will continuously increase.

6. The hydraulic turbine blade hoist apparatus of claim 5, wherein, The force-bearing part (11) also includes a drive part (112) connected to the abutment part (111). An external thread is provided on the drive part (112) along the axial direction, and the external thread allows it to cooperate with the fixing member (121) so that after the fixing member (121) and the compensation part (13) abut together, continuous rotation of the fixing member (121) can drive the abutment part (111) to move in the mounting hole (102).

7. The hydraulic turbine blade hoist apparatus of claim 6, wherein, A radially outwardly extending limiting part (113) is also provided on the drive part (112) to limit the continuous axial outward movement of the fixing member (121) along the drive part (112).

8. The hydraulic turbine blade hoist apparatus of claim 1, wherein, The second hoisting mechanism (2) includes a receiving part (21) for receiving the blade body (101) and a hoisting part (22) provided on the receiving part (21) and extending upward for passing through the hoisting hole (103). The hoisting part (22) is also provided with a force-bearing hole (23) for fixing together with the hoisting rope.

9. The hydraulic turbine blade hoist apparatus of claim 8, wherein, The lifting part (22) extends upward along the center of the receiving part (21) so that the centers of gravity of the lifting part (22) and the receiving part (21) are aligned with each other.

10. The hydraulic turbine blade hoist apparatus of claim 9, wherein, A radially outwardly extending reinforcing rib (24) is also provided on the receiving part (21) and the lifting part (22) to reinforce the connection between the receiving part (21) and the lifting part (22).

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