Disassembling and assembling tool special for guide vane crank arm of water turbine

Abstract

The utility model discloses a special dismounting tool for a guide vane crank arm of a water turbine, which comprises a mounting component, a connecting frame and a fixing plate connected with the bottom of the connecting frame. And the moving assembly is arranged on the inner wall of the fixed plate and comprises a moving block and a connecting hole formed in the top of the moving block. And the positions of the connecting holes can be changed by pushing the moving blocks to connect the water turbine guide vane crank arms with different sizes, so that technicians are helped to quickly disassemble the water turbine guide vane crank arms with different sizes, and the disassembly efficiency of the water turbine guide vane crank arms is improved.

Description

Technical Field

[0001] This utility model relates to the field of guide vane crank arm disassembly and assembly, and in particular to a special disassembly and assembly tool for water turbine guide vane crank arms. Background Technology

[0002] During turbine maintenance, the turbine guide vane crank arm needs to be disassembled for a thorough inspection. Disassembling the turbine guide vane crank arm requires the use of gourd-shaped disassembly tools, wire ropes, and a crane to remove it.

[0003] During disassembly, a gourd-shaped disassembly tool is installed on the guide vane crank arm of the turbine. Then, a crane is connected to the gourd-shaped disassembly tool via a wire rope. The crane is then used to lift the disassembly tool, allowing the guide vane crank arm to be pulled out, thus completing the disassembly work.

[0004] Since the diameters of guide vanes for different sizes of water turbines are different, different sized disassembly tools are required when disassembling guide vane crank arms of different diameters. This makes it difficult for technicians to quickly disassemble guide vane crank arms of different sizes, thus affecting the disassembly efficiency of the guide vane crank arms. Utility Model Content

[0005] Therefore, the technical problem to be solved by this utility model is that the existing disassembly tools are difficult to quickly meet the needs of different sizes of turbine guide vane crank arms. When technicians disassemble different turbine guide vane crank arms, they need to find disassembly tools of different sizes, which will affect the disassembly efficiency of the turbine guide vane crank arms.

[0006] The above-mentioned technical problems are solved by the following technical solution: This utility model proposes a special disassembly and assembly tool for a water turbine guide vane crank arm, which includes an installation assembly, including a connecting frame and a fixing plate connected to the bottom of the connecting frame; and,

[0007] A movable component, disposed on the inner wall of the fixed plate, includes a movable block and a connecting hole disposed on the top of the movable block.

[0008] In a preferred embodiment of the special disassembly and assembly tool for the guide vane crank arm of the water turbine described in this utility model: a sliding groove is provided on the inner wall of the fixing plate, and the sliding groove passes through the fixing plate laterally.

[0009] In a preferred embodiment of the special disassembly and assembly tool for the guide vane crank arm of the present invention: a first through hole is provided on one side of the fixing plate, the first through hole vertically penetrates the fixing plate, and the first through hole is interconnected with the sliding groove.

[0010] In a preferred embodiment of the special disassembly and assembly tool for the guide vane crank arm of the water turbine described in this utility model: a second through hole is provided at the end of the fixing plate, the second through hole penetrates the fixing plate, and the second through hole is interconnected with the sliding groove.

[0011] In a preferred embodiment of the special disassembly and assembly tool for the guide vane crank arm of the present invention: a blocking block is provided on one side of the connecting frame, and a support block is provided between the connecting frame and the fixing plate.

[0012] In a preferred embodiment of the special disassembly and assembly tool for the guide vane crank arm of the present invention: the outer wall of the moving block is slidably connected to the inner wall of the sliding groove, and the area of ​​the moving block is larger than the area of ​​the first through hole.

[0013] In a preferred embodiment of the special disassembly and assembly tool for the guide vane crank arm of the present invention: a circular hole is provided on one side of the moving block, and the circular hole penetrates the moving block.

[0014] In a preferred embodiment of the special disassembly and assembly tool for the guide vane crank arm of the present invention: a connecting component is provided on the inner wall of the circular hole, the connecting component including a bolt, an upper locking plate connected to the top of the bolt, a lower locking plate connected to the bottom of the bolt, and a nut threadedly connected to the bottom of the bolt.

[0015] In a preferred embodiment of the special disassembly and assembly tool for the guide vane crank arm of the present invention: the outer wall of the bolt contacts the inner wall of the circular hole, the upper locking plate is located at the top of the fixing plate, and the lower locking plate is located at the bottom of the fixing plate.

[0016] In a preferred embodiment of the special disassembly and assembly tool for the guide vane crank arm of the present invention: the nut is located at the bottom of the lower clamping plate.

[0017] The beneficial effects of this utility model are as follows: the position of the connecting hole can be changed by pushing the moving block to connect turbine guide vane crank arms of different sizes, thereby helping technicians to quickly disassemble turbine guide vane crank arms of different sizes and improving the disassembly efficiency of turbine guide vane crank arms. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments of this utility model will be briefly described below. Obviously, the drawings described below only relate to some embodiments of this utility model and are not intended to limit the scope of this utility model. Wherein:

[0019] Figure 1 The overall structure diagram is shown;

[0020] Figure 2A structural diagram of the installation components is shown;

[0021] Figure 3 A cross-sectional view of the installed components is shown;

[0022] Figure 4 A structural diagram of the moving component is shown;

[0023] Figure 5 A structural diagram of the connecting components is shown. Detailed Implementation

[0024] To enable those skilled in the art to better understand this utility model, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0025] The terminology used in this invention refers to those general terms currently widely used in the art in consideration of the functionality of this invention; however, these terms may vary according to the intent, precedent, or new technology of those skilled in the art. Furthermore, specific terms may be chosen by the applicant, and in such cases, their detailed meanings will be described in the detailed description of this invention. Therefore, the terminology used in this specification should not be construed as simple names, but rather based on the meaning of the terms and the overall description of this invention.

[0026] Reference Figures 1-5 This embodiment provides a special disassembly and assembly tool for a water turbine guide vane crank arm, including:

[0027] The installation assembly 100 includes a connecting frame 101 and a fixing plate 102 connected to the bottom of the connecting frame 101. The installation assembly 100 is the main body of the disassembly tool. The fixing plate 102 at its bottom is used to connect with the turbine guide vane crank arm. The connecting frame 101 is T-shaped with a certain curvature at its end. After the fixing plate 102 is installed on the turbine guide vane crank arm, a wire rope is looped onto the connecting frame 101, and the other end of the wire rope is connected to a crane. The crane can then lift the turbine guide vane crank arm and the installation assembly 100 together.

[0028] A blocking block 106 is provided on one side of the connecting frame 101, and a support block 107 is provided between the connecting frame 101 and the fixing plate 102.

[0029] As an optional embodiment, this embodiment provides a method for handling guide vane crank arms of different sizes in water turbines.

[0030] The movable component 200 is disposed on the inner wall of the fixed plate 102 and includes a movable block 201 and a connecting hole 202 disposed on the top of the movable block 201. The movable block 201 is rectangular in shape and has a connecting hole 202 of a certain length. This connecting hole 202 vertically penetrates the movable block 201, and a bolt can be passed through the connecting hole 202 and connected to a nut to fix the movable block 201 to the bolt component.

[0031] The inner wall of the fixed plate 102 is provided with a sliding groove 103, which extends horizontally through the fixed plate 102. The outer wall of the movable block 201 is slidably connected to the inner wall of the sliding groove 103. The movable block 201 can slide within the sliding groove 103. Therefore, when it is necessary to disassemble the turbine guide vane crank arm of different sizes, the movable block 201 can be moved to a suitable position, and then the bolts on the turbine guide vane crank arm can be passed through the connecting hole 202 and the nuts can be connected to fix the movable block 201 to the turbine guide vane crank arm. At this time, the connecting frame 101 can be lifted by a crane to lift the movable block 201 and the turbine guide vane crank arm, and then the turbine guide vane crank arm can be removed.

[0032] A first through hole 104 is provided on one side of the fixed plate 102. The first through hole 104 vertically penetrates the fixed plate 102 and is connected to the slide groove 103. The area of ​​the moving block 201 is larger than the area of ​​the first through hole 104. When dealing with turbine guide vane crank arms of different sizes, the position of the connecting hole 202 can be changed by pushing the moving block 201 in the first through hole 104. In this way, the connecting hole 202 can be connected to turbine guide vane crank arms of different sizes.

[0033] The fixed plate 102 has a second through hole 105 at its end. The second through hole 105 passes through the fixed plate 102 and is connected to the slide groove 103. When the size of the turbine guide vane crank arm is too large, the moving block 201 can be moved to the second through hole 105, so that the moving block 201 moves to the outermost edge of the fixed plate 102. This allows the connecting hole 202 to connect to a larger size turbine guide vane crank arm.

[0034] As an optional embodiment, this embodiment provides a method for fixing the moving block 201 after it has been moved.

[0035] A circular hole 203 is provided on one side of the movable block 201, penetrating the movable block 201. A connecting assembly 300 is provided on the inner wall of the circular hole 203. The connecting assembly 300 includes a bolt 301, an upper locking plate 302 connected to the top of the bolt 301, a lower locking plate 303 connected to the bottom of the bolt 301, and a nut 304 threadedly connected to the bottom of the bolt 301. The outer wall of the bolt 301 contacts the inner wall of the circular hole 203. The upper locking plate 302 is located at the top of the fixed plate 102, the lower locking plate 303 is located at the bottom of the fixed plate 102, and the nut 304 is located at the bottom of the lower locking plate 303. When it is necessary to fix the movable block 201... Tightening nut 304 will compress the lower clamping plate 303, causing it to fit tightly against the bottom of the fixing plate 102. At the same time, bolt 301 will also compress the upper clamping plate 302 under the action of the thread, thus making the upper clamping plate 302 fit tightly against the top of the fixing plate 102. The upper and lower clamping plates 302 and 303 will clamp the fixing plate 102, thus fixing the moving block 201 to the fixing plate 102. When the moving block 201 needs to be moved, simply loosen nut 304 to release the clamping force between the upper and lower clamping plates 302 and 303, allowing the moving block 201 to move.

[0036] Finally, it should be noted that the methods and devices described in detail above are merely embodiments, and those skilled in the art can modify these embodiments in different ways as long as they do not depart from the scope of this utility model.

Claims

1. A special tool for disassembling and assembling a guide vane crank arm of a water turbine, characterized in that: include, The mounting assembly (100) includes a connecting bracket (101) and a fixing plate (102) connected to the bottom of the connecting bracket (101); and, The movable component (200) is disposed on the inner wall of the fixed plate (102) and includes a movable block (201) and a connecting hole (202) disposed on the top of the movable block (201).

2. The special disassembly and assembly tool for turbine guide vane crank arms according to claim 1, characterized in that: The inner wall of the fixing plate (102) is provided with a sliding groove (103), which transversely penetrates the fixing plate (102).

3. The special disassembly and assembly tool for turbine guide vane crank arms according to claim 2, characterized in that: The fixing plate (102) has a first through hole (104) on one side, the first through hole (104) vertically penetrates the fixing plate (102), and the first through hole (104) is connected to the slide groove (103).

4. The special disassembly and assembly tool for turbine guide vane crank arms according to claim 3, characterized in that: The fixing plate (102) has a second through hole (105) at its end. The second through hole (105) passes through the fixing plate (102) and is connected to the slide groove (103).

5. The special disassembly and assembly tool for turbine guide vane crank arms according to claim 4, characterized in that: A blocking block (106) is provided on one side of the connecting frame (101), and a support block (107) is provided between the connecting frame (101) and the fixing plate (102).

6. The special disassembly and assembly tool for turbine guide vane crank arms according to claim 5, characterized in that: The outer wall of the movable block (201) is slidably connected to the inner wall of the groove (103), and the area of ​​the movable block (201) is larger than the area of ​​the first through hole (104).

7. The special disassembly and assembly tool for turbine guide vane crank arms according to claim 6, characterized in that: A circular hole (203) is provided on one side of the movable block (201), and the circular hole (203) passes through the movable block (201).

8. The special disassembly and assembly tool for turbine guide vane crank arms according to claim 7, characterized in that: The inner wall of the circular hole (203) is provided with a connecting assembly (300), which includes a bolt (301), an upper locking plate (302) connected to the top of the bolt (301), a lower locking plate (303) connected to the bottom of the bolt (301), and a nut (304) threadedly connected to the bottom of the bolt (301).

9. The special disassembly and assembly tool for turbine guide vane crank arms according to claim 8, characterized in that: The outer wall of the bolt (301) is in contact with the inner wall of the circular hole (203), the upper locking plate (302) is located at the top of the fixing plate (102), and the lower locking plate (303) is located at the bottom of the fixing plate (102).

10. The special disassembly and assembly tool for turbine guide vane crank arms according to claim 9, characterized in that: The nut (304) is located at the bottom of the lower locking plate (303).

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