Lifting device for overhauling runner of axial-flow Kaplan turbine

Abstract

The utility model provides an axial flow Kaplan turbine runner maintenance lifting device, which belongs to the technical field of hydroelectric power generation equipment and comprises two groups of bottom plates and connecting plates fixedly connected to the side walls of the bottom plates, the bottom plates are symmetrically arranged relative to the central axis of the connecting plates, and the bottom walls of the bottom plates are connected with universal wheels. The top wall of the bottom plate is fixedly connected with a supporting plate, the inner wall of the supporting plate is slidably connected with lifting plates, the side walls of the two lifting plates are fixedly connected with a set of fixing rods, and the bottom walls of the fixing rods are connected with lifting parts used for lifting the rotating wheels; the side wall of the supporting plate is connected with an adjusting component used for adjusting the height of the lifting plate, the rotating wheel is conveniently prevented from shaking during lifting by arranging the lifting component, so that the safety is improved, the rotating wheel can be conveniently adapted to different use places through the adjusting component, and the applicability is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of hydroelectric power generation equipment, in particular to a device for repairing and lifting a runner of an axial-flow propeller-type water turbine. Background Art

[0002] In hydroelectric power generation equipment, the impeller of an axial-flow propeller turbine is one of the key components, and its operating status directly affects the efficiency and stability of the generator set. During daily maintenance and overhaul, the impeller needs to be lifted from the turbine to facilitate inspection and repair by staff, so a impeller lifting and overhaul lifting device is needed.

[0003] However, the prior art still has the following deficiencies: 1. During the lifting process of the turbine runner, due to the high height, the turbine runner is prone to rotate in the air, which poses certain safety hazards. At the same time, it is not convenient to adjust the deflection angle of the turbine runner according to maintenance needs, and the practicality is low; 2. Due to different maintenance needs, it is not convenient to adjust the height of the maintenance frame to adapt to different places of use, and the applicability is poor.

[0004] Therefore, there is an urgent need for an axial-flow propeller-type water turbine runner maintenance and lifting device to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to address the problems that, during the current lifting process of the turbine runner, the turbine runner is prone to rotate in the air due to its high height, thus posing certain safety hazards, and it is also inconvenient to adjust the deflection angle of the turbine runner according to maintenance needs, resulting in low practicality; due to different maintenance needs, it is inconvenient to adjust the height of the maintenance frame to adapt to different use sites, resulting in poor applicability.

[0006] In order to achieve the above-mentioned invention object, the utility model provides the following technical solutions:

[0007] The invention discloses an axial-flow propeller-type water turbine runner maintenance and lifting device to improve the above-mentioned problems.

[0008] The specific application is as follows:

[0009] A device for inspecting and lifting the runner of an axial-flow propeller turbine comprises a base plate and a connecting plate fixedly connected to the side wall of the base plate, the base plate is symmetrically arranged in two groups about the central axis of the connecting plate, the bottom wall of the base plate is connected to a universal wheel, the universal wheel is symmetrically arranged in two groups about the central axis of the base plate, the top wall of the base plate is fixedly connected to a support plate, the inner wall of the support plate is slidably connected to a lifting plate, the two groups of side walls of the lifting plates are fixedly connected to a group of fixing rods, the bottom wall of the fixing rods is connected to a lifting component for hoisting the runner, and the side wall of the support plate is connected to an adjusting component for adjusting the height of the lifting plate.

[0010] As a preferred technical solution of the present application, the lifting component includes a winding rack fixedly connected to the bottom wall of the fixed rod, and the winding rack is symmetrically arranged in two groups about the central axis of the fixed rod. The side wall of the winding rack is rotatably connected to a reel, and the side wall of the winding rack is fixedly connected to a first drive motor, and the output end of the first drive motor is fixedly connected to the reel.

[0011] As a preferred technical solution of the present application, the outer wall of the reel is connected with a steel wire rope, and two groups of the steel wire ropes are symmetrically arranged about the central axis of the reel.

[0012] As a preferred technical solution of the present application, the side walls of the support plate and the lifting plate are both provided with limiting grooves, the side walls of the limiting grooves are slidably connected with a group of integral plates, and the end of the wire rope away from the reel is also fixedly connected to the integral plate.

[0013] As a preferred technical solution of the present application, the top wall of the integral plate is fixedly connected to a servo motor, the bottom wall of the integral plate is rotatably connected to an adjustment plate, and the output end of the servo motor is fixedly connected to the adjustment plate.

[0014] As a preferred technical solution of the present application, a movable groove is opened on the bottom wall of the adjustment plate, a bidirectional screw is rotatably connected to the inner wall of the movable groove, a second drive motor is fixedly connected to the side wall of the adjustment plate, and the output end of the second drive motor is fixedly connected to the bidirectional screw.

[0015] As a preferred technical solution of the present application, the bottom wall of the adjustment plate is slidably connected with a lifting block via a movable groove, and two groups of the lifting blocks are symmetrically arranged about the central axis of the adjustment plate.

[0016] As a preferred technical solution of the present application, the inner wall of the lifting block is slidably connected with a fitting plate, the top wall of the fitting plate is fixedly connected with a first extrusion block, and the top wall of the lifting block is fixedly connected with a second extrusion block.

[0017] As a preferred technical solution of the present application, the top wall of the lifting block is fixedly connected with a first cylinder, the output end of the first cylinder is fixedly connected to the bonding plate, and the bidirectional screw is threadedly connected to the lifting block.

[0018] As a preferred technical solution of the present application, the adjusting component includes a second cylinder fixedly connected to the side wall of the support plate, and the output end of the second cylinder is fixedly connected to the lifting plate.

[0019] In the scheme of this application:

[0020] 1. The integral plate is limited by the limiting groove, so that the integral plate can reduce shaking when it is lifted and lowered, which improves safety. The servo motor can drive the adjusting plate to rotate, so that the angle of the turbine runner can be adjusted through the adjusting plate, which improves the convenience during maintenance. It solves the problem that in the prior art, the turbine runner is easy to rotate in the air due to the high height during the lifting process of the turbine runner, which poses certain safety hazards. At the same time, it is not convenient to adjust the deflection angle of the turbine runner according to maintenance needs, and the practicality is low.

[0021] 2. The second cylinders on both sides can drive the lifting plate to move up and down, thereby facilitating the adjustment of the height of the fixed rod, facilitating adaptation to different places of use, and having stronger applicability. This solves the problem in the prior art that it is inconvenient to adjust the height of the maintenance frame due to different maintenance needs, thereby adapting to different places of use and having poor applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is one of the overall structural schematic diagrams of an axial-flow propeller-type water turbine runner maintenance and lifting device provided in this application;

[0023] Figure 2 The second overall structural schematic diagram of an axial-flow propeller-type water turbine runner maintenance and lifting device provided in the present application;

[0024] Figure 3 The third overall structural schematic diagram of an axial-flow propeller-type water turbine runner maintenance and lifting device provided in this application;

[0025] Figure 4 A device for repairing and lifting an axial-flow propeller-type water turbine runner is provided in this application. Figure 2 A magnified view of the structure in the middle;

[0026] Figure 5 A device for repairing and lifting an axial-flow propeller-type water turbine runner is provided in this application. Figure 3 A magnified view of the structure in middle B.

[0027] Indications in the figure: 100, bottom plate; 101, connecting plate; 102, universal wheel; 103, supporting plate; 104, lifting plate; 105, fixing rod; 110, winding frame; 111, reel; 112, first driving motor; 113, wire rope; 114, limiting groove; 115, integral plate; 116, servo motor; 117, adjusting plate; 118, moving groove; 119, bidirectional screw; 120, second driving motor; 121, lifting block; 122, laminating plate; 123, first extrusion block; 124, second extrusion block; 125, first cylinder; 126, second cylinder. DETAILED DESCRIPTION

[0028] To make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments.

[0029] like Figure 1-2 As shown, the present embodiment proposes an axial-flow propeller turbine runner maintenance and lifting device, comprising a base plate 100 and a connecting plate 101 fixedly connected to the side wall of the base plate 100, the base plate 100 is symmetrically arranged with two groups about the central axis of the connecting plate 101, the bottom wall of the base plate 100 is connected with a universal wheel 102, and the universal wheel 102 is symmetrically arranged with two groups about the central axis of the base plate 100, the top wall of the base plate 100 is fixedly connected with a support plate 103, the inner wall of the support plate 103 is slidably connected with a lifting plate 104, the side walls of the two groups of lifting plates 104 are fixedly connected with a group of fixing rods 105, the bottom wall of the fixing rods 105 is connected with a lifting component for hoisting the runner, the side wall of the support plate 103 is connected with an adjusting component for adjusting the height of the lifting plate 104, and the lifting plate 104 is slidably connected to the inner wall of the support plate 103, so that the height of the fixing rod 105 can be adjusted according to the use needs, thereby improving the applicability.

[0030] like Figure 1-5 As shown, as a preferred embodiment, on the basis of the above-mentioned method, further, the lifting component includes a winding frame 110 fixedly connected to the bottom wall of the fixed rod 105, and the winding frame 110 is symmetrically arranged with two groups about the central axis of the fixed rod 105. The side wall of the winding frame 110 is rotatably connected to the reel 111, and the side wall of the winding frame 110 is fixedly connected to the first drive motor 112, and the output end of the first drive motor 112 is fixedly connected to the reel 111. The reel 111 is driven to rotate by the first drive motor 112 to facilitate the convenience of lifting the turbine runner.

[0031] like Figure 1-5As shown, as a preferred embodiment, on the basis of the above method, further, the outer wall of the reel 111 is connected with a steel wire rope 113, and two groups of steel wire ropes 113 are symmetrically arranged about the central axis of the reel 111. By arranging two groups of steel wire ropes 113, the stability during lifting is improved.

[0032] like Figure 1-3 As shown, as a preferred embodiment, on the basis of the above-mentioned method, further, the side walls of the support plate 103 and the lifting plate 104 are provided with limiting grooves 114, and the side walls of the limiting grooves 114 are slidably connected with a group of integral plates 115, and the end of the wire rope 113 away from the reel 111 is also fixedly connected to the integral plate 115. By setting the limiting grooves 114, it is convenient to improve the stability of the integral plate 115 when lifting, and the practicality is stronger.

[0033] like Figure 1-2 As shown, as a preferred embodiment, on the basis of the above-mentioned method, further, the top wall of the integral plate 115 is fixedly connected to a servo motor 116, the bottom wall of the integral plate 115 is rotatably connected to an adjustment plate 117, and the output end of the servo motor 116 is fixedly connected to the adjustment plate 117. By setting the servo motor 116, the adjustment plate 117 can be driven to rotate, which is more convenient for maintenance.

[0034] like Figure 1-3 As shown, as a preferred embodiment, on the basis of the above-mentioned method, further, a movable groove 118 is opened on the bottom wall of the adjustment plate 117, and a bidirectional screw 119 is rotatably connected to the inner wall of the movable groove 118, and a second drive motor 120 is fixedly connected to the side wall of the adjustment plate 117, and the output end of the second drive motor 120 is fixedly connected to the bidirectional screw 119, and the bidirectional screw 119 is driven to rotate by the second drive motor 120, thereby facilitating the provision of driving force to the bidirectional screw 119.

[0035] like Figure 1-4 As shown, as a preferred embodiment, on the basis of the above-mentioned method, further, the bottom wall of the adjusting plate 117 is slidably connected with a lifting block 121 through a movable groove 118, and two groups of the lifting blocks 121 are symmetrically arranged about the central axis of the adjusting plate 117. By arranging the lifting blocks 121, it is easy to adapt to turbine impellers of different sizes, and the applicability is stronger.

[0036] like Figure 1-4 As shown, as a preferred embodiment, on the basis of the above method, further, the inner wall of the lifting block 121 is slidably connected with a fitting plate 122, the top wall of the fitting plate 122 is fixedly connected with a first extrusion block 123, and the top wall of the lifting block 121 is fixedly connected with a second extrusion block 124. By setting the first extrusion block 123 and the second extrusion block 124, it is convenient to fix the hoisting position of the turbine, so as to improve the hoisting efficiency.

[0037] like Figure 1-3 As shown, as a preferred embodiment, on the basis of the above method, further, the top wall of the lifting block 121 is fixedly connected with the first cylinder 125, the output end of the first cylinder 125 is fixedly connected to the bonding plate 122, and the bidirectional screw 119 is threadedly connected to the lifting block 121. By setting the bidirectional screw 119, the lifting block 121 can be driven synchronously or in reverse motion, which is beneficial to improve synchronization.

[0038] like Figure 1-2 As shown, as a preferred embodiment, on the basis of the above method, further, the adjusting component includes a second cylinder 126 fixedly connected to the side wall of the support plate 103, and the output end of the second cylinder 126 is fixedly connected to the lifting plate 104. By setting the second cylinder 126, the lifting plate 104 can be driven to slide out of the support plate 103, so as to adapt to different usage conditions.

[0039] Specifically, when the present axial-flow propeller turbine runner maintenance and lifting device is in use: first, the base plate 100 is pushed to the position where it needs to be used through the universal wheel 102, and then the second cylinder 126 is started according to the use needs to push the lifting plate 104 to move upward, thereby realizing the adjustment of the height of the fixing rod 105, which is convenient for adapting to different use places. When hoisting is required, the first drive motor 112 is started at the same time to drive the reel 111 to unwind, thereby realizing the adjustment of the height of the overall plate 115, and adjusting the lifting block 121 to a position that fits the turbine runner, and then the second drive motor 120 is started to drive the bidirectional screw 119 to rotate, and the bidirectional screw 119 simultaneously drives the lifting block 121 to move to both sides, so that the turbine runner is fixed. The position is adjusted to between the first extrusion block 123 and the second extrusion block 124, and then the first cylinder 125 is started to push forward, and the bonding plate 122 is driven to slide by the first cylinder 125, so that the turbine runner hoisting position is squeezed and fixed by the first extrusion block 123 and the second extrusion block 124, thereby realizing the lifting of the turbine, and then the first drive motor 112 is started to drive the reel 111 to reel the wire rope 113, and drive the overall plate 115 to slide through the limit groove 114, so as to prevent the overall plate 115 from shaking during lifting, thereby improving the stability during lifting, and the servo motor 116 is started to drive the adjustment plate 117 to rotate, so that the angle of the turbine can be adjusted by the adjustment plate 117, which improves the convenience during maintenance.

[0040] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. Although the present invention has been described in detail with reference to the above embodiments, the present invention is not limited to the above specific implementation methods. Therefore, any modification or equivalent replacement of the present invention; and all technical solutions and improvements thereof that do not depart from the spirit and scope of the invention are included in the scope of the claims of the present invention.

Claims

1. An axial-flow propeller turbine runner maintenance and lifting device, comprising a bottom plate (100) and a connecting plate (101) fixedly connected to a side wall of the bottom plate (100), characterized in that: The bottom plate (100) is symmetrically arranged in two groups about the central axis of the connecting plate (101); the bottom wall of the bottom plate (100) is connected to a universal wheel (102); the universal wheel (102) is symmetrically arranged in two groups about the central axis of the bottom plate (100); the top wall of the bottom plate (100) is fixedly connected to a support plate (103); the inner wall of the support plate (103) is slidably connected to a lifting plate (104); the side walls of the two groups of lifting plates (104) are fixedly connected to a group of fixing rods (105); the bottom wall of the fixing rods (105) is connected to a lifting component for hoisting the rotating wheel; the side wall of the support plate (103) is connected to an adjusting component for adjusting the height of the lifting plate (104).

2. The axial flow propeller turbine runner maintenance and lifting device according to claim 1 is characterized in that: The lifting component comprises a winding frame (110) fixedly connected to the bottom wall of the fixed rod (105); the winding frame (110) is symmetrically arranged in two groups about the central axis of the fixed rod (105); the side wall of the winding frame (110) is rotatably connected to a reel (111); the side wall of the winding frame (110) is fixedly connected to a first driving motor (112); and the output end of the first driving motor (112) is fixedly connected to the reel (111).

3. The axial flow propeller turbine runner maintenance and lifting device according to claim 2 is characterized in that: The outer wall of the reel (111) is connected to a steel wire rope (113), and two groups of the steel wire rope (113) are symmetrically arranged about the central axis of the reel (111).

4. The axial flow propeller turbine runner maintenance and lifting device according to claim 3 is characterized in that: The side walls of the support plate (103) and the lifting plate (104) are both provided with limiting grooves (114), and the side walls of the limiting grooves (114) are slidably connected to a group of integral plates (115), and one end of the steel wire rope (113) away from the reel (111) is also fixedly connected to the integral plate (115).

5. The axial flow propeller turbine runner maintenance and lifting device according to claim 4 is characterized in that: The top wall of the integral plate (115) is fixedly connected to a servo motor (116), the bottom wall of the integral plate (115) is rotatably connected to an adjustment plate (117), and the output end of the servo motor (116) is fixedly connected to the adjustment plate (117).

6. The axial flow propeller turbine runner maintenance and lifting device according to claim 5, characterized in that: The bottom wall of the adjustment plate (117) is provided with a movable groove (118), the inner wall of the movable groove (118) is rotatably connected to a bidirectional screw rod (119), the side wall of the adjustment plate (117) is fixedly connected to a second drive motor (120), and the output end of the second drive motor (120) is fixedly connected to the bidirectional screw rod (119).

7. The axial-flow propeller turbine runner maintenance and lifting device according to claim 6, characterized in that: The bottom wall of the adjustment plate (117) is slidably connected to a lifting block (121) via a movable groove (118), and two groups of the lifting blocks (121) are symmetrically arranged about the central axis of the adjustment plate (117).

8. The axial-flow propeller turbine runner maintenance and lifting device according to claim 7, characterized in that: The inner wall of the lifting block (121) is slidably connected to a bonding plate (122), the top wall of the bonding plate (122) is fixedly connected to a first extrusion block (123), and the top wall of the lifting block (121) is fixedly connected to a second extrusion block (124).

9. The axial-flow propeller turbine runner maintenance and lifting device according to claim 8, characterized in that: The top wall of the lifting block (121) is fixedly connected to a first cylinder (125); an output end of the first cylinder (125) is fixedly connected to the bonding plate (122); and the bidirectional screw (119) is threadedly connected to the lifting block (121).

10. The axial-flow propeller turbine runner maintenance and lifting device according to claim 1, characterized in that: The adjusting component comprises a second cylinder (126) fixedly connected to the side wall of the support plate (103), and an output end of the second cylinder (126) is fixedly connected to the lifting plate (104).

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