Assembling and disassembling tool for guide vane safety device

Abstract

The utility model belongs to the technical field of water turbines, and particularly relates to a guide vane safety device assembling and disassembling tool which comprises a fixing support, one end of the fixing support is provided with a limiting supporting leg used for limiting a spring hook plate, and the other end of the fixing support is connected with a transmission support used for limiting the spring hook plate on the other side in a sliding mode. Grooves used for containing the spring hook plate are formed in the transmission support and the limiting supporting legs, limiting assemblies used for being matched with the grooves to lock the spring hook plate are installed on the transmission support and the limiting supporting legs, and a driving assembly used for driving the transmission support to move is installed on the fixing support. The transmission support and the limiting supporting legs are each provided with an adjusting assembly used for adjusting the position of the spring hook plate in the groove. In the installation process, a worker does not need to stretch the spring between the spring hook plates any more, the labor intensity is relieved, the installation efficiency is improved, the hand clamping risk of the worker in the installation process is relieved, and the safety coefficient in the installation process is increased.

Description

Technical Field

[0001] The utility model belongs to the technical field of hydraulic turbines, and particularly relates to a tool for assembling and disassembling a guide vane safety device. Background Art

[0002] The water quality of the river where the tubular turbine is located is relatively poor. During the power generation operation, foreign objects often pass through between the guide vanes along with the water flow. In order to ensure long-term stable operation, a spring connecting rod assembly with a guide vane safety device is usually adopted. When the governor closes the guide vanes by pushing the connecting rod assembly through the control ring, if a foreign object gets stuck between adjacent guide vanes, at this time, the guide vanes cannot continue to close, the connecting rod on the control ring side continues to move under the thrust and rotates relatively, the spring is stretched by the force, the position limit switch of the connecting rod sends a signal to the governor to give a guide vane opening command, the distance between adjacent guide vanes increases, the water flow flushes the foreign object downstream, the spring pulls the connecting rod back to the normal working state, and the limit switch sends a signal to the governor to control the guide vanes to continue to close normally.

[0003] In order to ensure the stability of the connecting rod assembly length during the normal opening or closing of the guide vanes, the spring needs to have a certain pre-tension force. Due to the large pre-tension force, it is impossible to ensure safe operation with manpower and traditional tools during the installation and disassembly process in the factory and on-site, and the operation is time-consuming and laborious, seriously affecting the loading and unloading efficiency. Summary of the Utility Model

[0004] The utility model aims to solve the above technical problems and further provides a tool for assembling and disassembling a guide vane safety device.

[0005] The specific technical solution of the utility model is as follows: A tool for assembling and disassembling a guide vane safety device includes a fixed bracket. One end of the fixed bracket is provided with a limit leg for limiting the spring hook plate, and the other end of the fixed bracket is slidably connected with a transmission bracket for limiting the spring hook plate on the other side. Grooves for accommodating the spring hook plate are opened on both the transmission bracket and the limit leg. Limiting components for cooperating with the grooves to lock the spring hook plate are installed on both the transmission bracket and the limit leg. A driving component for driving the transmission bracket to move is installed on the fixed bracket. Adjusting components for adjusting the position of the spring hook plate in the groove are installed on both the transmission bracket and the limit leg.

[0006] Further, the driving component is a threaded rod installed on the transmission bracket, and a nut threadedly connected with the threaded rod is rotatably connected to the fixed bracket.

[0007] Further, the limiting component includes a first cover plate, and the first cover plate is respectively installed on the transmission bracket and the limit leg through first bolts for pressing the hook plate.

[0008] Further, the limiting component includes a second cover plate which is rotatably connected to the transmission bracket and the limiting leg respectively. A second bolt is threadedly connected inside the second cover plate. A ball is slidably connected inside the second cover plate. The ball is connected to the second bolt through a spring. Arc grooves for accommodating the ball are formed in the transmission bracket and the limiting leg.

[0009] Further, the adjusting component includes screws which are symmetrically installed on both the transmission bracket and the limiting leg.

[0010] Further, rubber pads are installed on the screws.

[0011] Further, an oil tank is installed on the fixed bracket. A sponge in contact with the threaded rod is installed on the oil tank. The sponge communicates with the inside of the oil tank. Lubricating oil is provided inside the oil tank.

[0012] Further, the contact end of the sponge with the threaded rod is serrated.

[0013] Further, a scale is provided on the fixed bracket. An indicating slider vertically corresponding to the scale is installed on the transmission bracket.

[0014] Further, a third bolt is threadedly connected to the indicating slider.

[0015] Beneficial effects:

[0016] In this application, a limiting leg for limiting the spring hook plate is installed at one end of the fixed bracket. A transmission bracket for limiting the spring hook plate on the other side is slidably connected to the other end of the fixed bracket. Grooves for accommodating the spring hook plate are formed on both the transmission bracket and the limiting leg. Limiting components for cooperating with the grooves to lock the spring hook plate are installed on both the transmission bracket and the limiting leg. A driving component for driving the transmission bracket to move is installed on the fixed bracket. Adjusting components for adjusting the position of the spring hook plate in the groove are installed on both the transmission bracket and the limiting leg. The spring hook plates on the left and right sides are respectively locked in the grooves of the transmission bracket and the limiting leg by the limiting components. Then, the transmission bracket is driven to move by the driving component, so that the transmission bracket drives the locked spring hook plate to move away from one end of the limiting leg, and the distance between the transmission bracket and the limiting leg increases. By utilizing the cooperation between the transmission bracket and the limiting leg, the spring between the two spring hook plates is stretched. Then, the mounting holes on the spring hook plates are aligned with the connecting rod for installation. After the installation is completed, the worker operates the limiting component to leave the upper end of the groove. Then, the worker moves the fixed bracket to separate the spring hook plate from the groove. Then, the driving component is used to reset the transmission bracket. Thus, during the installation process, it is no longer necessary for the worker to stretch the spring between the spring hook plates, reducing the labor intensity, improving the installation efficiency, reducing the risk of pinching the worker's hand during installation, and thus increasing the safety factor during installation. Description of the drawings

[0017] Figure 1 Structural schematic diagram of the present utility model;

[0018] Figure 2 Structural schematic diagram of the second cover plate and the ball in the present utility model;

[0019] Figure 3 For the present utility model Figure 1 Partial enlarged view of A in the present utility model;

[0020] Figure 4 For the present utility model Figure 1 Partial enlarged view of B in the present utility model;

[0021] Figure 5 Structural schematic diagram of the scale and the indicating slider in the present utility model.

[0022] Description of the markings in the figure:

[0023] Fixed bracket 1, spring hook plate 2, limit leg 3, transmission bracket 4, groove 5, limit assembly 6, first cover plate 611, first bolt 612, second cover plate 621, second bolt 622, ball 623, arc groove 624, drive assembly 7, threaded rod 711, nut 712, adjustment assembly 8, screw 811, rubber pad 812, fuel tank 9, sponge 10, scale 11, indicating slider 12, third bolt 13. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0025] In the description of the present utility model, it should be understood that the terms "upper", "middle", "outer", "inner", etc. indicating the orientation or position relationship are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0026] Embodiment 1: In combination with Figures 1 to 3A tool for installing and disassembling a guide vane safety device is described, which includes a fixed bracket 1. One end of the fixed bracket 1 is equipped with a limit leg 3 for restricting the spring hook plate 2. The other end of the fixed bracket 1 is slidably connected with a transmission bracket 4 for restricting the spring hook plate 2 on the other side. Grooves 5 for accommodating the spring hook plate 2 are provided on both the transmission bracket 4 and the limit leg 3. Limit components 6 for cooperating with the grooves 5 to lock the spring hook plate 2 are installed on both the transmission bracket 4 and the limit leg 3. A driving component 7 for driving the transmission bracket 4 to move is installed on the fixed bracket 1. Adjusting components 8 for adjusting the position of the spring hook plate 2 in the groove 5 are installed on both the transmission bracket 4 and the limit leg 3.

[0027] Among them, the groove 5 is L-shaped. The bend at the end of the groove 5 hooks the side of the spring hook plate 2, making the connection between the groove 5 and the spring hook plate 2 more stable. Then, the spring hook plate 2 is placed in the grooves 5 provided on the limit leg 3 and the transmission bracket 4. Then, the spring hook plates 2 on the left and right sides are respectively locked in their respective grooves 5 through the limit components 6, preventing the spring hook plate 2 from detaching from the groove 5. Further, the connection between the spring hook plates 2 on the left and right sides and the limit leg 3 or the transmission bracket 4 on the same side is made more stable, improving safety and making installation more convenient.

[0028] Among them, the driving component 7 is a self-locking driving device. When the driving component 7 is not used to drive the transmission bracket 4 to move, the driving component 7 can lock the transmission bracket 4 to prevent the transmission bracket 4 from changing its position, thereby making it more labor-saving and safe to adjust the distance between the spring hook plates 2 on both sides.

[0029] In this application, a limiting leg 3 for limiting the spring hook plate 2 is installed at one end of the fixed bracket 1. The other end of the fixed bracket 1 is slidably connected with a transmission bracket 4 for limiting the spring hook plate 2 on the other side. Grooves 5 for accommodating the spring hook plate 2 are provided on both the transmission bracket 4 and the limiting leg 3. Limiting components 6 for cooperating with the grooves 5 to lock the spring hook plate 2 are installed on both the transmission bracket 4 and the limiting leg 3. A driving component 7 for driving the transmission bracket 4 to move is installed on the fixed bracket 1. Adjusting components 8 for adjusting the position of the spring hook plate 2 in the groove 5 are installed on both the transmission bracket 4 and the limiting leg 3. The spring hook plates 2 on the left and right sides are respectively locked in the grooves 5 of the transmission bracket 4 and the limiting leg 3 by the limiting components 6. Then, the transmission bracket 4 is driven to move by the driving component 7, so that the transmission bracket 4 drives the locked spring hook plate 2 away from one end of the limiting leg 3, and the distance between the transmission bracket 4 and the limiting leg 3 increases. By using the cooperation between the transmission bracket 4 and the limiting leg 3, the spring between the two spring hook plates 2 is stretched. Then, the mounting holes on the spring hook plate 2 are aligned with the connecting rod for mounting. After the installation is completed, the worker operates the limiting component 6 to leave the upper end of the groove 5. Then, the worker moves the fixed bracket 1 to separate the spring hook plate 2 from the groove 5. Then, the driving component 7 is used to reset the transmission bracket 4. Therefore, during the installation process, it is no longer necessary for the worker to stretch the spring between the spring hook plates 2, which reduces the labor intensity, improves the installation efficiency, reduces the risk of pinching the worker's hand during installation, and thus increases the safety factor during installation.

[0030] Embodiment 2: Based on Embodiment 1 and in combination with Figure 1 it is described that the driving component 7 is a threaded rod 711 installed on the transmission bracket 4, and a nut 712 threadedly connected with the threaded rod 711 is rotatably connected to the fixed bracket 1.

[0031] Among them, the driving component 7 can also be a combination of a pull rod and a ratchet. By providing a plurality of tooth grooves on the pull rod, and then using a torsion spring to make the ratchet catch in one of the tooth grooves. Then, the worker pulls the pull rod, and the pull rod drives the locked spring hook plate 2 on the transmission bracket 4 away from the limiting leg 3. When the worker relaxes the force, the ratchet will catch the pull rod through the card slot to prevent the spring from driving the transmission bracket 4 to reset. Thus, the worker is kept away from the spring position during installation, reducing the risk of being pinched, and thus increasing the safety factor.

[0032] In this application, a threaded rod 711 is provided on the transmission bracket 4, and a nut 712 that is in threaded connection with the threaded rod 711 is rotatably connected to the fixed bracket 1. By rotating the nut 712, the worker utilizes the thread fit between the nut 712 and the threaded rod 711 to make the threaded rod 711 pull the transmission bracket 4 away from the limit leg 3, thereby stretching the spring between the two spring hook plates 2. It is more labor-saving for the worker to rotate the nut 712 with a wrench. At the same time, the fit between the nut 712 and the threaded rod 711 is simpler, reducing the occurrence of faults and making maintenance more convenient. Furthermore, the safety during installation is improved, the operation is more convenient, and the installation efficiency is increased.

[0033] Embodiment 3: Based on Embodiment 1 and combined with Figure 1 and Figure 2 for description, the limiting component 6 includes a first cover plate 611. The first cover plate 611 is respectively installed on the transmission bracket 4 and the limit leg 3 through first bolts 612 and is used to cover the spring hook plate 2.

[0034] In this application, the first cover plate 611 installed on the transmission bracket 4 and the limit leg 3 is used to install the first cover plate 611 on the transmission bracket 4 and the limit leg 3 through the first bolts 612, so as to press the spring hook plate 2 in the groove 5, further preventing the spring hook plate 2 from separating from the groove 5. When the worker installs, the spring hook plate 2 is placed in the groove 5, and then the first cover plate 611 is used to press the spring hook plate 2 in the groove 5, and the first bolts 612 are used to tightly press the first cover plate 611 in the groove 5, thereby improving safety, facilitating the worker to install the spring hook plate 2, and increasing the installation efficiency.

[0035] Embodiment 4: Based on Embodiment 1 and combined with Figure 2 for description, the limiting component 6 includes a second cover plate 621. The second cover plate 621 is respectively rotatably connected to the transmission bracket 4 and the limit leg 3. A second bolt 622 is in threaded connection inside the second cover plate 621. A ball 623 is slidably connected inside the second cover plate 621. The ball 623 is connected to the second bolt 622 through a spring. Arc grooves 624 for accommodating the ball 623 are provided on the transmission bracket 4 and the limit leg 3.

[0036] In this application, a second cover plate 621 is rotatably connected to the transmission support 4 and the limit support leg 3. The worker places the spring hook plate 2 into the groove 5, and then rotates the second cover plate 621, causing the second cover plate 621 to drive the ball 623 to move together. After the ball 623 moves above the arc groove 624, the spring will push the ball 623 into the arc groove 624. The rotation of the second cover plate 621 is restricted by the mutual cooperation between the ball 623 and the arc groove 624. The second cover plate 621 presses on the upper part of the spring hook plate 2, locking the spring hook plate 2 in the groove 5. Then, the worker moves the fixed support 1 and the locked spring hook plate 2 to the installation position. After that, the installation holes on the spring hook plate 2 are aligned with the installation positions of the connecting rod. After the installation is completed, the worker only needs to rotate the second cover plate 621 to make the ball 623 overcome the elastic force of the spring and separate from the arc groove 624 and retract into the second cover plate 621. Then, the upper end of the transmission support 4 will block the lower end of the second cover plate 621 to prevent the ball 623 from falling out. Thus, it is not necessary for the worker to operate in a narrow space, improving the comfort during installation. By rotating the second bolt 622 threadedly connected in the second cover plate 621, the second bolt 622 moves downward, reducing the distance between the second bolt 622 and the ball 623. Consequently, the elastic force between the second bolt 622 and the ball 623 is increased. By adjusting the second bolt 622, the ball can still have the ability to cooperate with the arc groove 624 to lock the second cover plate 621 after multiple uses, thereby extending the service life, reducing the maintenance cost, facilitating loading and unloading, and improving the installation efficiency and safety factor.

[0037] Embodiment 5: Based on Embodiment 1 or 2 and combined with Figure 2 and Figure 3 for description, the adjusting assembly 8 includes screws 811, and screws 811 are symmetrically installed on both the transmission support 4 and the limit support leg 3.

[0038] In this application, screws 811 are symmetrically installed on both the transmission support 4 and the limit support leg 3. When installing the spring hook plate 2, after the connecting rod is used multiple times, it will cause slight deformation. After installing one end of the spring hook plate 2, the installation holes of the spring hook plate 2 at the other end do not correspond to the installation positions of the connecting rod. The worker can rotate the screws 811 to squeeze the spring hook plate 2 in the groove 5. By rotating the screws 811 on both sides, the installation holes on the spring hook plate 2 are made to correspond to the installation positions on the connecting rod, enabling the spring hook plate 2 to be more stably installed on the connecting rod, facilitating the operation and installation of the worker, making the installation more labor-saving, and improving the installation efficiency and safety factor.

[0039] Embodiment 6: Based on Embodiment 5 and combined with Figure 2 and Figure 3It is described that a rubber pad 812 is installed on the screw 811. In this application, by installing a rubber pad 812 at the bottom end of the screw 811, it can reduce the wear of the screw 811 on the spring hook plate 2 when the screw 811 presses the spring hook plate 2, and can also improve the service life of the screw 811. The rubber pad 812 at the bottom end of the screw 811 can increase the friction between the screw 811 and the spring hook plate 2. When the screws 811 on both sides are tightened towards the middle at the same time, the screws 811 on both sides can further lock the spring hook plate 2, making the spring hook plate 2 more stably locked in the groove 5, further improving safety and installation efficiency.

[0040] Embodiment 7: Based on Embodiment 1 or 2, it is combined with Figure 4 It is described that an oil tank 9 is installed on the fixed bracket 1, and a sponge 10 in contact with the threaded rod 711 is installed on the oil tank 9. The sponge 10 is in internal communication with the oil tank 9, and lubricating oil is provided in the oil tank 9. In this application, by installing an oil tank 9 on the fixed bracket 1, a sponge 10 in contact with the threaded rod 711 is installed on the oil tank 9, the sponge 10 is in internal communication with the oil tank 9, and lubricating oil is provided in the oil tank 9. The lubricating oil in the oil tank 9 seeps out from the sponge 10 through capillary action. Then, the sponge 10 comes into contact with the threaded rod 711, and the lubricating oil seeping out from the surface of the sponge 10 will come into contact with the threaded rod 711. The lubricating oil is applied to the surface of the threaded rod 711 through the sponge 10, reducing the friction between the threaded rod 711 and the nut 712, making it easier for the worker to rotate the nut 712, facilitating the worker to drive the transmission bracket 4 to move, thereby extending the service life, making it more labor-saving for the worker to install, more convenient to operate, and improving the installation efficiency.

[0041] Embodiment 8: Based on Embodiment 7, it is combined with Figure 4 It is described that the contact end of the sponge 10 with the threaded rod 711 is set to be serrated. In this application, by setting the contact end of the sponge 10 with the threaded rod 711 to be serrated, the serrated sponge 10 can fully contact the thread on the threaded rod 711. The serrated sponge 10 can further clean the dust on the threaded rod 711, prevent jamming between the threaded rod 711 and the nut 712, and can also make the lubricating oil more evenly applied to the threaded rod 711, further extending the service life, facilitating the worker to operate and install, and improving the installation efficiency and safety factor.

[0042] Embodiment 9: Based on Embodiment 1 or 2, it is combined with Figure 5The fixed bracket 1 is provided with a scale 11, and an indicating slider 12 vertically corresponding to the scale 11 is installed on the transmission bracket 4. In this application, by providing a scale 11 on the fixed bracket 1 and installing an indicating slider 12 vertically corresponding to the scale 11 on the transmission bracket 4, when the transmission bracket 4 moves, it will drive the indicating slider 12 to move together. The worker can first measure to find the optimal position for installing the spring hook plate 2, and then record the value. By observing the relative position of the indicating slider 12 on the scale 11, the transmission bracket 4 can be driven to pre-move the locked spring hook plate 2 to the optimal installation relative distance, making the installation more accurate and convenient, improving the installation efficiency, and reducing the labor intensity of the worker.

[0043] Example 10: Based on Example 9, combined with Figure 5 The indicating slider 12 is threadedly connected with a third bolt 13. In this application, by threadedly connecting a third bolt 13 to the indicating slider 12, when the indicating slider 12 moves to a suitable position on the scale 11, the worker tightens the third bolt 13 so that the bottom end of the third bolt 13 contacts the fixed bracket 1, further locking the transmission bracket 4 through the third bolt 13 and the indicating slider 12, improving the locking of the transmission bracket 4, making the transmission bracket 4 more stable when installing the spring hook plate 2, facilitating the installation, and improving the installation efficiency and safety factor.

[0044] Working process:

[0045] When installing the spring hook plate 2, place the spring hook plates 2 on both sides into the grooves 5 of the limiting legs 3 and the transmission bracket 4. Then rotate the second cover plate 621, so that the second cover plate 621 drives the ball 623 to move towards the arc groove 624. After the ball 623 moves above the arc groove 624, the spring will push the ball 623 into the arc groove 624. The rotation of the second cover plate 621 is restricted by the mutual cooperation between the ball 623 and the arc groove 624. Then rotate the nut 712, and the nut 712 will drive the threaded rod 711 away from the limiting leg 3 through the threaded cooperation with the threaded rod 711, so that the spring hook plates 2 on both sides move towards both sides against the elastic force of the spring between them. Then align the installation holes on the spring hook plate 2 with the installation holes on the connecting rod for installation. After the installation is completed, rotate the second cover plate 621 in the reverse direction. The second cover plate 621 drives the ball 623 to separate from the arc groove 624 against the elastic force of its spring and retract into the second cover plate 621. The second cover plate 621 no longer covers the upper end of the groove 5. Then remove the fixed bracket 1 to separate the spring hook plate 2 from the groove 5, thus completing the loading and unloading of the spring hook plate 2. The operation is convenient and labor-saving, improving safety and installation efficiency.

[0046] In the description of this specification, the descriptions referring to the terms "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0047] The preferred embodiments of the present utility model disclosed above are only used to help explain the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can well understand and utilize the present utility model. The present utility model is only limited by the claims and their full scope and equivalents.

Claims

1. A tool for installing and disassembling a guide vane safety device, characterized in that, It includes a fixed bracket (1). One end of the fixed bracket (1) is equipped with a limiting leg (3) for limiting the spring hook plate (2). The other end of the fixed bracket (1) is slidably connected with a transmission bracket (4) for limiting the spring hook plate (2) on the other side. Grooves (5) for accommodating the spring hook plate (2) are provided on both the transmission bracket (4) and the limiting leg (3). Limiting components (6) for cooperating with the grooves (5) to lock the spring hook plate (2) are installed on both the transmission bracket (4) and the limiting leg (3). A driving component (7) for driving the transmission bracket (4) to move is installed on the fixed bracket (1). Adjusting components (8) for adjusting the position of the spring hook plate (2) in the groove (5) are installed on both the transmission bracket (4) and the limiting leg (3).

2. The disassembling and assembling tool for a guide vane safety device according to claim 1, characterized in that, The driving component (7) is a threaded rod (711) installed on the transmission bracket (4). A nut (712) threadedly connected with the threaded rod (711) is rotatably connected to the fixed bracket (1).

3. The disassembly and assembly tool for a guide vane safety device according to claim 1, characterized in that, The limiting component (6) includes a first cover plate (611). The first cover plate (611) is installed on the transmission bracket (4) and the limiting leg (3) respectively through first bolts (612) for pressing and covering the spring hook plate (2).

4. A disassembling and assembling tool for a guide vane safety device according to claim 1, characterized in that The limiting component (6) includes a second cover plate (621). The second cover plate (621) is rotatably connected to the transmission bracket (4) and the limiting leg (3) respectively. A second bolt (622) is threadedly connected inside the second cover plate (621). A ball (623) is slidably connected inside the second cover plate (621). The ball (623) is connected to the second bolt (622) through a spring. Arc grooves (624) for accommodating the ball (623) are provided on the transmission bracket (4) and the limiting leg (3).

5. A disassembling and assembling tool for a guide vane safety device according to claim 1 or 2, characterized in that, The adjusting component (8) includes screws (811). Screws (811) are symmetrically installed on both the transmission bracket (4) and the limiting leg (3).

6. A disassembly and assembly tool for a guide vane safety device according to claim 5, characterized in that, A rubber pad (812) is installed on the screw (811).

7. A disassembling and assembling tool for a guide vane safety device according to claim 1 or 2, characterized in that, An oil tank (9) is installed on the fixed bracket (1). A sponge (10) in contact with the threaded rod (711) is installed on the oil tank (9). The sponge (10) is internally connected to the oil tank (9). Lubricating oil is provided inside the oil tank (9).

8. A disassembling and assembling tool for a guide vane safety device according to claim 7, characterized in that, The contact end of the sponge (10) with the threaded rod (711) is set to be serrated.

9. A disassembling and assembling tool for a guide vane safety device according to claim 1 or 2, characterized in that, A scale (11) is provided on the fixed bracket (1). An indicating slider (12) vertically corresponding to the scale (11) is installed on the transmission bracket (4).

10. A disassembling and assembling tool for a guide vane safety device according to claim 9, characterized in that, A third bolt (13) is threadedly connected to the indicating slider (12).

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