A water turbine guide vane transfer device and a water turbine guide vane transfer method

Abstract

The water turbine guide vane transfer device provided by the application comprises a lower mounting frame, an upper mounting frame and a fixing mechanism, the lower mounting frame is provided with lower supporting grooves, the lower supporting grooves are multiple and are arranged at intervals along a first direction and a second direction respectively, the upper mounting frame is pivotally connected to the lower mounting frame, the upper mounting frame is provided with upper supporting grooves, the upper supporting grooves are multiple and are arranged at intervals along the first direction and the second direction respectively, if the upper mounting frame is closed on the lower mounting frame, the upper supporting grooves are opposite to the lower supporting grooves, the upper supporting grooves and the corresponding lower supporting grooves form accommodating cavities, and the accommodating cavities are used for accommodating shaft bodies of water turbine guide vanes, the fixing mechanism is connected to the lower mounting frame and the upper mounting frame respectively, and is used for fixing the shaft bodies in the accommodating cavities. The water turbine guide vane transfer device provided by the application has multiple accommodating cavities, can strengthen the fixing and support of the shaft bodies, prevent the deformation of the shaft bodies and improve the stability in the guide vane transfer process, can accommodate multiple water turbine guide vanes at the same time and improve the transfer efficiency of the water turbine guide vanes.

Description

Technical Field

[0001] This invention relates to the field of transfer device technology, and more specifically, to a transfer device and transfer method for turbine guide vanes. Background Technology

[0002] Hydropower generates electricity by using the mechanical energy of flowing water to drive a generator. Therefore, hydropower is characterized by being clean, renewable, and highly economical. The turbine is the main device in hydropower generation. Its main components include the inlet mechanism, guide vane mechanism, runner mechanism, and spillway mechanism. Among these, the guide vanes, as a crucial component of the guide vane mechanism, adjust their opening according to changes in the unit's load, thereby controlling the turbine's flow rate and playing a vital role in the stability and safety of the entire unit's operation. The guide vane consists of a blade body and its long and short shafts at both ends. The traditional manufacturing process for guide vanes mainly includes casting, forging, flaw detection, scribing, and machining. Due to the large length, heavy weight, and mass production requirements of guide vanes, a transfer device is needed to move them between different processes to prevent damage from collisions during transport.

[0003] In the existing technology, due to the heavy weight of the guide vanes, they are difficult to handle. They are usually transported by crane lifting equipment and placed directly on the transport vehicle. This method of transportation can easily cause scratches and damage to the surface of the guide vanes, resulting in the need for later maintenance and repair, and reducing the efficiency of transportation. Summary of the Invention

[0004] The first aspect of the present invention provides a transfer device for turbine guide vanes, which solves the technical problems of scratch damage and low transfer efficiency in the prior art during the transfer process of guide vanes.

[0005] The present invention provides a transfer device for turbine guide vanes, comprising:

[0006] The lower mounting bracket is provided with a lower support groove, and the lower support groove is provided in multiple ways and is respectively spaced apart along a first direction and a second direction;

[0007] An upper mounting bracket is pivotally connected to the lower mounting bracket; the upper mounting bracket is provided with multiple upper support slots, which are spaced apart along the first direction and the second direction respectively; when the upper mounting bracket covers the lower mounting bracket, the upper support slots are directly opposite the lower support slots, and the upper support slots and the corresponding lower support slots enclose a receiving cavity, which is used to receive the shaft of the turbine guide vane; and...

[0008] A fixing mechanism, connected to the lower mounting bracket and the upper mounting bracket respectively, is used to fix the shaft in the receiving cavity;

[0009] Wherein, the first direction is the axial direction of the shaft, and the second direction is perpendicular to the first direction.

[0010] This invention provides a transfer device for turbine guide vanes, comprising multiple cavities formed by upper and lower support grooves. On one hand, this increases the contact area between the cavities and the turbine guide vane shaft, strengthening the fixed support and preventing shaft deformation, thus improving stability during guide vane transfer. On the other hand, it can simultaneously accommodate multiple turbine guide vanes, increasing transfer efficiency. A fixing mechanism secures the turbine guide vanes within the cavities, preventing movement during transfer and enhancing stability and safety, thus avoiding damage. Furthermore, an upper mounting frame is pivotally connected to a lower mounting frame, with multiple upper support grooves on the upper frame and multiple lower support grooves on the lower frame. The upper mounting frame covers the lower mounting frame, facilitating simultaneous positioning of multiple shafts. The upper mounting frame opens onto the lower mounting frame, facilitating the hoisting of the turbine guide vanes.

[0011] Furthermore, the upper mounting bracket includes a mounting plate and a rotating shaft, the rotating shaft being fixed to the mounting plate and pivotally connected to the lower mounting bracket; the upper support groove is provided on the mounting plate.

[0012] Furthermore, the rotating shaft is connected to a rotating mechanism, which is mounted on the lower mounting bracket. The rotating mechanism drives the rotating shaft to rotate, thereby causing the mounting plate to move in the direction of closing or opening on the lower mounting bracket. This configuration enables the mounting plate to automatically close or open on the lower mounting bracket, improving the efficiency of closing and opening the mounting plate.

[0013] Furthermore, the mounting plate includes a pressure plate and a first connecting plate. The pressure plate has multiple plates spaced apart along the first direction or the second direction, and multiple upper support grooves are provided on the pressure plate. The first connecting plate is fixed to the end of the multiple pressure plates on the same side, and the rotating shaft is fixed to the first connecting plate. This configuration increases the rigidity of the mounting plate, reduces its deformation, and ensures that when the mounting plate is closed on the lower mounting frame, the center lines of the upper and lower support grooves are collinear, thereby enhancing the support and fixation of the guide vane shaft.

[0014] Furthermore, the rotating mechanism includes a drive unit, a worm gear, and a worm wheel. The drive unit is mounted on the lower mounting bracket, the worm gear is mounted on the lower mounting bracket and is tractively connected to the power output end of the drive unit, and the worm wheel is fixed to one end of the rotating shaft and meshes with the worm gear.

[0015] Furthermore, the lower mounting frame includes a bracket and a shelf. The bracket includes a support plate and a column. The column has at least three columns, and its bottom end is fixedly fixed to the support plate at intervals. The shelf is fixed to the column.

[0016] Furthermore, the lower support slot is provided on the shelf.

[0017] Furthermore, the shelf includes a shelf and a second connecting plate. The shelf has multiple shelves and is spaced apart along the first direction or the second direction. The multiple lower support grooves are provided on the shelf. The second connecting plate has two plates, which are respectively fixed to the column and respectively fixed to the ends of the multiple shelves.

[0018] Furthermore, the lower mounting bracket also includes support feet, which are at least three in number and fixed at intervals to the lower end of the support plate.

[0019] Furthermore, the mounting plate has a plurality of first through holes, which are spaced apart along the first direction and the second direction, respectively; the shelf has a plurality of second through holes, which correspond one-to-one with the first through holes; the fixing mechanism includes a screw and a locking nut, and if the mounting plate covers the shelf, the screw passes through the second through holes and the first through holes and protrudes from the upper surface of the mounting plate; the locking nut is threadedly engaged with the screw to fix the shaft in the receiving cavity.

[0020] The turbine guide vane transfer device provided by the present invention uses a fixing mechanism with screws and locking nuts, which facilitates disassembly and assembly and can be reused multiple times.

[0021] Furthermore, the fixing mechanism also includes a support frame disposed between the shelf and the tray, with the lower ends of the plurality of screws fixed to the support frame; a buffer assembly is provided below the support frame, the lower end of which is connected to the upper surface of the tray, and the buffer assembly is always capable of driving the support frame to move away from the shelf, so that the screws protrude below the first through hole. This buffer assembly provides support for the support frame and automatic reset.

[0022] Furthermore, the first through hole is located between any two adjacent upper support slots; the second through hole is located between any two adjacent lower support slots.

[0023] Furthermore, the support frame includes a top plate and a third connecting plate. The top plate has multiple plates and is spaced apart along the first direction or the second direction. The third connecting plate has two plates and is fixed to the ends of the multiple top plates respectively.

[0024] Furthermore, the support frame is connected to a lifting mechanism. When the mounting plate is placed on the shelf, the lifting mechanism drives the support frame to sequentially pass through the second through hole and the first through hole, protruding from the upper surface of the mounting plate. This arrangement enables the support frame to be raised and lowered, thereby allowing the screw to pass through or retract from the upper end of the mounting plate, facilitating the installation and separation of the mounting plate from the shelf.

[0025] Furthermore, the buffer assembly includes a plurality of springs, which are spaced apart, with the upper end of each spring connected to the lower surface of the support frame and the lower end of each spring connected to the upper surface of the tray.

[0026] Furthermore, the mounting plate is provided with a cantilever;

[0027] The lifting mechanism includes a drive shaft and a lifting assembly. The lifting assembly includes a pressure rod, a top rod, and a connecting rod. The drive shaft is pivotally connected to the bracket. The pressure rod and the top rod are respectively fixed on the circumferential surface of the drive shaft and are located on both sides of the central axis of the drive shaft. One end of the connecting rod is hinged to the top rod, and the other end is hinged to the support frame.

[0028] The position and number of the pressure rods correspond to those of the cantilever arms. If the mounting plate moves in the direction of covering the shelf, the cantilever arms can press down against the upper surface of the pressure rods and drive the pressure rods to rotate the drive shaft. The drive shaft drives the top rod and the connecting rod to move upward, so that the support frame moves in the direction close to the shelf.

[0029] The turbine guide vane transfer device provided by this invention, by setting a cantilever on the mounting plate, enables the cantilever to press down on the pressure rod during the rotation of the mounting plate near the shelf, thereby driving the drive shaft to rotate, which in turn drives the top rod and connecting rod to move upward, thus enabling the support frame to move in the direction close to the shelf, so that the upper end of the screw passes through the upper surface of the mounting plate. On the one hand, it eliminates the need for an additional lifting mechanism, resulting in low cost and simple structure; on the other hand, it improves the convenience of fixed installation.

[0030] Furthermore, the first through hole is a strip-shaped hole, and the length of the strip-shaped hole extends perpendicular to the axis of the rotating shaft. This design prevents the mounting plate from being obstructed from moving closer to the shelf during the screw's ascent.

[0031] Furthermore, the lifting mechanism comprises two sets, which are respectively located on both sides of the lower mounting frame along the first direction. This arrangement improves the stability and reliability of the lifting of the support frame.

[0032] Furthermore, the number of lifting components is at least two, with the two lifting components located at both ends of the drive shaft along its axial direction.

[0033] Furthermore, both the upper and lower support grooves are arc-shaped grooves, with the center of the arc-shaped groove coinciding with the center of the shaft. This design ensures a tight fit between the arc-shaped groove and the shaft, enhancing its support and fixation.

[0034] Furthermore, both the lower and upper support slots are provided with protective layers. This design enhances the protective effect of the protective layers and also facilitates replacement.

[0035] Furthermore, a reinforcing plate is provided between the outer walls of any adjacent upper support groove; a reinforcing plate is also provided between the outer walls of any adjacent lower support groove. This arrangement increases the clamping force of the receiving cavity formed by the upper and lower support grooves on the shaft of the guide vane.

[0036] A second aspect of the present invention provides a method for transferring turbine guide vanes, applied to the aforementioned turbine guide vane transfer device, the transfer method comprising the following steps:

[0037] The turbine guide vanes are hoisted onto the lower mounting frame, and the shaft of the turbine guide vanes is accommodated in the lower support groove.

[0038] The upper mounting bracket is placed over the lower mounting bracket, and the upper bracket abuts against the shaft.

[0039] The shaft is fixed in the receiving cavity by the fixing mechanism. Attached Figure Description

[0040] Figure 1 A schematic diagram of the open state of the transfer device for the turbine guide vanes provided in an embodiment of the present invention;

[0041] Figure 2 A schematic diagram of the covered state of the transfer device for the turbine guide vanes provided in an embodiment of the present invention;

[0042] Figure 3 This is a schematic diagram of the assembly structure of the transfer device for the water turbine guide vanes provided in this embodiment of the invention;

[0043] Explanation of reference numerals in the attached figures:

[0044] 1. Upper mounting bracket; 11. Mounting plate; 111. Upper bracket slot; 112. Reinforcing plate; 12. Rotating shaft; 13. Cantilever; 2. Lower mounting bracket; 21. Bracket; 22. Shelf; 221. Lower bracket slot; 3. Guide vane; 4. Fixing mechanism; 41. Support frame; 42. Screw; 43. Locking nut; 5. Lifting mechanism; 51. Drive shaft; 52. Pressure rod; 53. Top rod; 54. Connecting rod; 6. Spring; 7. Rotating mechanism; 71. Worm gear; 72. Worm wheel; 73. Drive unit. Detailed Implementation

[0045] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the following description is provided in conjunction with the accompanying drawings. Figure 1-3 Specific embodiments of the present invention will be described in detail below.

[0046] In this invention, the terms "inner", "outer", "upper", "lower", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0047] See appendix Figure 1 and Figure 2 This invention provides a transfer device for a turbine guide vane, comprising a lower mounting frame 2, an upper mounting frame 1, and a fixing mechanism 4. The lower mounting frame 2 is provided with a lower support groove 221, which has multiple grooves and is spaced apart along a first direction and a second direction, respectively. The upper mounting frame 1 is pivotally connected to the lower mounting frame 2. The upper mounting frame 1 is provided with an upper support groove 111, which has multiple grooves and is spaced apart along a first direction and a second direction, respectively. When the upper mounting frame 1 covers the lower mounting frame 2, the upper support groove 111 is directly opposite the lower support groove 221, and the upper support groove 111 and the corresponding lower support groove 221 enclose a receiving cavity for accommodating the shaft of the turbine guide vane 3. The fixing mechanism 4 is connected to the lower mounting frame 2 and the upper mounting frame 1, respectively, for fixing the shaft in the receiving cavity. The first direction is the axial direction of the shaft, and the second direction is perpendicular to the first direction.

[0048] It should be noted that multiple accommodating cavities are provided along the first direction, which increases the contact area between the accommodating cavity and the shaft of the turbine guide vane 3, strengthens the fixed support of the shaft, prevents the deformation of the shaft, and improves the stability of the guide vane 3 during the transfer process; multiple accommodating cavities are provided along the second direction, which realizes the simultaneous accommodation of multiple turbine guide vane 3 shafts and improves the transfer efficiency of the guide vane 3.

[0049] It should be noted that the upper mounting frame 1 is pivotally connected to the lower mounting frame 2, multiple upper support slots 111 are provided on the upper mounting frame 1, and multiple lower support slots 221 are provided on the lower mounting frame 2. The upper mounting frame 1 covers the lower mounting frame 2, which facilitates the simultaneous limiting of multiple shafts. The upper mounting frame 1 opens to the lower mounting frame 2, which facilitates the hoisting of the turbine guide vanes 3.

[0050] It should be noted that the fixing mechanism 4 can be connected by a screw 42 and a nut, or by a snap-fit ​​connection.

[0051] This invention provides a transfer device for turbine guide vanes, comprising multiple cavities formed by upper support grooves 111 and lower support grooves 221. On one hand, this increases the contact area between the cavities and the shaft of the turbine guide vane 3, strengthens the fixed support to the shaft, prevents shaft deformation, and improves the stability of the guide vane 3 during transfer. On the other hand, it can simultaneously accommodate multiple turbine guide vanes 3, improving the transfer efficiency of the turbine guide vanes 3. A fixing mechanism 4 is used to fix the turbine guide vanes 3 in the cavities, preventing movement of the turbine guide vanes 3 during transfer, improving the stability and safety of the turbine guide vanes 3 during transfer, and avoiding damage to the turbine guide vanes 3. Furthermore, the upper mounting frame 1 is pivotally connected to the lower mounting frame 2, multiple upper support grooves 111 are provided on the upper mounting frame 1, and multiple lower support grooves 221 are provided on the lower mounting frame 2. The upper mounting frame 1 covers the lower mounting frame 2, facilitating simultaneous positioning of multiple shafts. The upper mounting frame 1 opens onto the lower mounting frame 2, facilitating the hoisting of the turbine guide vanes 3.

[0052] See appendix Figure 1 and Figure 2 In this embodiment of the invention, the upper mounting bracket 1 includes a mounting plate 11 and a rotating shaft 12. The rotating shaft 12 is fixed to the mounting plate 11 and pivotally connected to the lower mounting bracket 2. The upper support groove 111 is provided on the mounting plate 11.

[0053] See appendix Figure 1 and Figure 2 In this embodiment of the invention, a rotating shaft 12 is connected to a rotating mechanism 7, which is mounted on the lower mounting frame 2. The rotating mechanism 7 drives the rotating shaft 12 to rotate, thereby causing the mounting plate 11 to move in the direction of closing or opening on the lower mounting frame 2. This configuration enables the mounting plate 11 to automatically close or open on the lower mounting frame 2, improving the efficiency of closing and opening the mounting plate 11.

[0054] In this embodiment of the invention, the mounting plate 11 includes a pressure plate and a first connecting plate. The pressure plate has multiple plates spaced apart along a first direction or a second direction, and multiple upper support grooves 111 are provided on the pressure plate. The first connecting plate is fixed to the end of the multiple pressure plates on the same side, and the rotating shaft 12 is fixed to the first connecting plate. This configuration increases the rigidity of the mounting plate 11, reduces the deformation of the mounting plate 11, and ensures that when the mounting plate 11 covers the lower mounting frame 2, the center lines of the upper support grooves 111 and the lower support grooves 221 are collinear, thereby enhancing the support and fixing effect on the shaft of the guide vane 3.

[0055] In one specific embodiment of the present invention, the first mounting plate 11 is provided with mounting holes, the rotating shaft 12 is fixedly connected to the mounting holes, and both ends of the rotating shaft 12 pass through the mounting holes and are rotatably connected to the lower mounting bracket 2 through the mounting seat.

[0056] See appendix Figure 1 and Figure 2 In this embodiment of the invention, the rotating mechanism 7 includes a drive unit 73, a worm 71, and a worm wheel 72. The drive unit 73 is mounted on the lower mounting frame 2, the worm 71 is mounted on the lower mounting frame 2 and is connected to the power output end of the drive unit 73, and the worm wheel 72 is fixed to one end of the rotating shaft 12 and meshes with the worm 71.

[0057] In this embodiment of the invention, the drive unit 73 is a motor.

[0058] It should be noted that before installing the turbine guide vane 3, the motor is started to drive the worm gear 71 to rotate, which in turn drives the worm wheel 72 meshing with the worm gear 71 to rotate, thereby driving the rotating shaft 12 connected to the worm wheel 72 to rotate, which in turn drives the mounting plate 11 to rotate around the rotating shaft 12, causing the mounting plate 11 to flip away from the lower mounting frame 2; then the turbine guide vane 3 is hoisted so that the guide vane 3 shaft is installed in the lower support groove 221. Then the motor rotates in the opposite direction, driving the worm gear 71 to rotate in the opposite direction, driving the worm wheel 72 to rotate in the opposite direction, thereby driving the mounting plate 11 to rotate above the lower mounting frame 2.

[0059] See appendix Figure 1 and Figure 2 In this embodiment of the invention, the lower mounting frame 2 includes a support 21 and a shelf 22. The support 21 includes a tray and a column. There are at least three columns, and their bottom ends are fixed to the tray at intervals. The shelf 22 is fixed to the column.

[0060] In one specific embodiment of the present invention, the number of columns is four, which are respectively fixed at the four corner points of the support plate.

[0061] In this embodiment of the invention, the lower support groove 221 is provided on the shelf 22.

[0062] In this embodiment of the invention, the motor is mounted on the column via a mounting bracket.

[0063] In this embodiment of the invention, the shelf 22 includes a shelf and a second connecting plate. The shelf has multiple shelves and is spaced apart along a first direction or a second direction. Multiple lower support grooves 221 are provided on the shelf. The second connecting plate has two plates, which are respectively fixed to the column and respectively fixed to the ends of the multiple shelves.

[0064] In this embodiment of the invention, the lower mounting bracket 2 further includes support feet, which are at least three in number and fixed at intervals to the lower end of the support plate.

[0065] In one specific embodiment of the present invention, the number of support feet is four, which are located at the four corners of the lower end of the tray.

[0066] See appendix Figure 2 In this embodiment of the invention, the mounting plate 11 has a plurality of first through holes, which are spaced apart along a first direction and a second direction respectively; the shelf 22 has a plurality of second through holes, which correspond one-to-one with the first through holes; the fixing mechanism 4 includes a screw 42 and a locking nut 43. If the mounting plate 11 covers the shelf 22, the screw 42 passes through the second through holes and the first through holes and protrudes from the upper surface of the mounting plate 11; the locking nut 43 is threadedly engaged with the screw 42 to fix the shaft in the receiving cavity.

[0067] The turbine guide vane transfer device provided in this embodiment of the invention uses a fixing mechanism 4 with screw 42 and locking nut 43 for easy disassembly and assembly, and can be reused multiple times.

[0068] See appendix Figure 3 In this embodiment of the invention, the fixing mechanism 4 further includes a support frame 41, which is disposed between the shelf 22 and the tray. The lower ends of a plurality of screws 42 are fixed to the support frame 41. A buffer assembly is provided below the support frame 41, and the lower end of the buffer assembly is connected to the upper surface of the tray. The buffer assembly always drives the support frame 41 to move away from the shelf 22, so that the screws 42 pass through to the bottom of the first through hole. This buffer assembly provides support for the support frame 41 and automatic reset.

[0069] See appendix Figure 2 and Figure 3 In this embodiment of the invention, the buffer assembly includes multiple springs 6, which are spaced apart. One end of each spring 6 is fixed to the lower end of the support frame 41, and the other end is fixed to the upper surface of the tray.

[0070] It should be noted that before installing the turbine guide vane 3, the spring 6 is in its natural state; after the shaft body of the turbine guide vane 3 is installed in the lower support groove 221 of the lower mounting frame 2, the mounting plate 11 rotates and closes on the shelf 22, the support frame 41 moves upward close to the shelf 22, the spring 6 undergoes tensile deformation, the screw rod 42 rises and penetrates through the upper surface of the mounting plate 11, the locking nut 43 is installed on the screw rod 42, the mounting plate 11 is locked and fixed on the shelf 22, and thus the shaft body of the guide vane 3 is clamped and fixed in the accommodating cavity; when transported to the target position, the locking nut 43 is removed, the spring 6 returns to its natural state under the action of the deformation force, driving the support frame 41 to descend, so that the screw rod 42 moves downward below the mounting plate 11.

[0071] In the embodiment of the present invention, the first through holes are provided between any adjacent upper support grooves 111; the second through holes are provided between any adjacent lower support grooves 221. With this setting, the fixing effect of the accommodating groove formed by each upper support groove 111 and lower support groove 221 on the shaft body of the guide vane 3 is enhanced.

[0072] In the embodiment of the present invention, the support frame 41 includes a top plate and a third connecting plate. There are multiple top plates spaced along the first direction or the second direction, and there are 2 third connecting plates respectively fixed at the ends of the multiple top plates.

[0073] In the embodiment of the present invention, the buffer assembly is fixed on the lower surface of the top plate.

[0074] In a specific embodiment of the present invention, the mounting plate 11 is of an "E" - shaped structure, including three pressing plates spaced along the first direction and a first connecting plate fixed at the same - side ends of the pressing plates; the shelf 22 is of a "day" - shaped structure, including three shelves spaced along the first direction and second connecting plates respectively fixed at the two ends of the shelves; the top plate is of a "day" - shaped structure, including three top plates spaced along the first direction and third connecting plates respectively fixed at the two ends of the top plates.

[0075] See attached Figure 2 and Figure 3 In the embodiment of the present invention, the support frame 41 is connected with a lifting mechanism 5. If the mounting plate 11 is closed on the shelf 22, the lifting mechanism 5 is used to drive the support frame 41 to drive the screw rod 42 to sequentially pass through the second through hole and the first through hole and protrude above the upper surface of the mounting plate 11. With this setting, the lifting of the support frame 41 is realized, and further the screw rod 42 can penetrate or withdraw from the upper end of the mounting plate 11, facilitating the installation and separation of the mounting plate 11 and the shelf.

[0076] See attached Figures 1-3In this embodiment of the invention, the mounting plate 11 is provided with a cantilever 13; the lifting mechanism 5 includes a drive shaft 51 and a lifting assembly, the lifting assembly includes a pressure rod 52, a top rod 53 and a connecting rod 54, the drive shaft 51 is pivotally connected to the bracket 21, the pressure rod 52 and the top rod 53 are respectively fixed on the circumferential surface of the drive shaft 51 and are respectively located on both sides of the central axis of the drive shaft 51; one end of the connecting rod 54 is hinged to the top rod 53 and the other end is hinged to the support frame 41; wherein, the position and number of the pressure rod 52 and the cantilever 13 correspond, if the mounting plate 11 moves in the direction of covering the shelf 22, the cantilever 13 can press down and abut against the upper surface of the pressure rod 52 and drive the pressure rod 52 to drive the drive shaft 51 to rotate, the drive shaft 51 drives the top rod 53 and the connecting rod 54 to move upward, so that the support frame 41 moves in the direction close to the shelf 22.

[0077] It should be noted that when the mounting plate 11 rotates to a position close to the shelf 22, the lower end of the cantilever 13 contacts the upper surface of the pressure rod 52. As the mounting plate 11 continues to rotate, the lower end of the cantilever 13 continues to move downward and press down on the pressure rod 52, driving the drive shaft 51 to rotate, which in turn drives the top rod 53 to rotate upward, thereby causing the connecting rod 54 hinged to the top rod 53 to move upward, so that the support frame 41 moves in the direction close to the shelf 22, driving the screw 42 fixed to the support frame 41 to pass through the upper surface of the mounting plate 11. By installing the locking nut 43 on the screw 42, the mounting plate 11 is locked onto the shelf 22, thereby fixing the shaft of the guide vane 3 in the receiving cavity.

[0078] The turbine guide vane transfer device provided in this embodiment of the invention, by setting a cantilever 13 on the mounting plate 11, enables the cantilever 13 to press down the pressure rod 52 during the rotation of the mounting plate 11 near the shelf 22, thereby driving the drive shaft to rotate, which in turn drives the top rod 53 and the connecting rod 54 to move upward, thus enabling the support frame 41 to move in the direction near the shelf 22, so that the upper end of the screw 42 passes through the upper surface of the mounting plate 11. On the one hand, it does not require an additional lifting mechanism 5 to drive, resulting in low cost and simple structure; on the other hand, it improves the convenience of fixed installation.

[0079] In this embodiment of the invention, the cantilever 13 includes a horizontal plate and a bent plate connected to each other. One end of the horizontal plate is connected to the outer wall of the pressure plate, and the bent plate extends downward along the surface of the horizontal plate and is suspended above the pressure rod 52.

[0080] In this embodiment of the invention, the first through hole is a strip-shaped hole, and the length of the strip-shaped hole extends perpendicular to the axis of the rotating shaft 12. This design prevents the screw 42 from hindering the mounting plate 11 from continuing to move closer to the shelf during its ascent.

[0081] In this embodiment of the invention, there are two sets of lifting mechanisms 5, which are respectively located on both sides of the lower mounting frame 2 along the first direction. This arrangement improves the stability and reliability of the lifting of the support frame 41.

[0082] In this embodiment of the invention, the number of lifting components is at least two, wherein the two lifting components are located at both ends of the drive shaft 51 along its axial direction.

[0083] In this embodiment of the invention, both the upper support groove 111 and the lower support groove 221 are arc-shaped grooves, with the center of the arc-shaped groove coinciding with the center of the shaft. This arrangement ensures a tight fit between the arc-shaped groove and the shaft, enhancing the support and fixation of the shaft.

[0084] In this embodiment of the invention, both the lower support groove 221 and the upper support groove 111 are provided with protective layers.

[0085] It should be noted that the protective layer can be made of cushioning materials, such as rubber, foam plastic or silicone.

[0086] The turbine guide vane transfer device provided in this embodiment of the invention enhances the protection of the protective layer by setting a protective layer in the lower support groove 221 and the upper support groove 111; in addition, it facilitates replacement.

[0087] In this embodiment of the invention, a reinforcing plate 112 is provided between the outer wall surfaces of any adjacent upper support groove 111; a reinforcing plate 112 is also provided between the outer wall surfaces of any adjacent lower support groove 221. This arrangement increases the clamping force of the receiving cavity formed by the upper support groove 111 and the lower support groove 221 on the shaft of the guide vane 3.

[0088] In this embodiment of the invention, the cross-sectional shape of the reinforcing plate 112 is rectangular.

[0089] A second aspect of the present invention provides a method for transferring a turbine guide vane, applied to the aforementioned turbine guide vane transfer device. The transfer method includes the following steps: hoisting the turbine guide vane 3 onto the lower mounting frame 2, such that the shaft of the turbine guide vane 3 is accommodated in the lower support groove 221; covering the lower mounting frame 2 with the upper mounting frame 1, such that the upper support groove 111 abuts against the shaft; and fixing the shaft in the accommodating cavity by means of the fixing mechanism 4.

[0090] The present invention provides a method for transferring guide vanes of a water turbine, which specifically includes the following steps:

[0091] The turbine guide vane 3 is hoisted onto the lower mounting frame 2, and the shaft of the turbine guide vane 3 is accommodated in the lower support groove 221 of the shelf 22, with the spring 6 in its natural state.

[0092] The rotating mechanism 7 drives the mounting plate 11 of the upper mounting bracket 1 to cover the shelf 22, and causes the upper support groove 111 of the mounting plate 11 to abut against the shaft of the turbine guide vane 3.

[0093] The cantilever 13 fixed to the mounting plate 11 moves downward to press down the pressure rod 52. The pressure rod 52 drives the drive shaft 51 to rotate, which in turn drives the top rod 53 and the connecting rod 54 to move upward, thereby driving the support frame 41 to rise. At this time, the spring 6 is stretched and deformed, and the screw 42 fixed to the support frame 41 rises and passes through the upper surface of the mounting plate 11. The locking nut 43 is installed on the screw 42, locking the mounting plate 11 onto the shelf 22, thereby clamping and fixing the shaft of the turbine guide vane 3 into the receiving cavity formed by the upper support groove 111 and the lower support groove 221.

[0094] After being transported to the target location, the locking nut 43 is removed. The spring 6 returns to its natural state under the action of deformation force. The spring 6 drives the support frame 41 to descend. The support frame 41 drives the connecting rod 54 and the top rod 53 to move downward, thereby driving the drive shaft 51 to rotate. The pressure rod 52 rotates to the initial position, and the screw 42 fixed to the support frame 41 moves downward below the mounting plate 11.

[0095] The rotating mechanism 7 drives the mounting plate 11 to open on the shelf 22, and hoists the turbine guide vane 3 to the designated position.

[0096] While the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

Claims

1. A transfer device for water turbine guide vanes, characterized in that, include: The lower mounting bracket (2) includes a support (21) and a shelf (22). The support (21) includes a tray, and the shelf (22) is provided with a lower support groove (221). The lower support groove (221) has multiple grooves and is spaced apart along a first direction and a second direction, respectively. An upper mounting frame (1) is pivotally connected to a lower mounting frame (2); the upper mounting frame (1) is provided with an upper support groove (111), having multiple grooves spaced apart along the first direction and the second direction respectively; if the upper mounting frame (1) covers the lower mounting frame (2), the upper support groove (111) is directly opposite the lower support groove (221), the upper support groove (111) and the corresponding lower support groove (221) enclose to form a receiving cavity, the receiving cavity being used to receive the shaft of the turbine guide vane (3); the upper mounting frame (1) includes a mounting plate (11) and a rotating shaft (12), the mounting plate (11) is provided with a cantilever (13); the rotating shaft (12) is fixed to the mounting plate (11) and pivotally connected to the lower mounting frame (2); the upper support groove (111) is provided on the mounting plate (11). A fixing mechanism (4) is connected to the lower mounting bracket (2) and the upper mounting bracket (1) respectively, for fixing the shaft body in the receiving cavity; the fixing mechanism (4) also includes a support frame (41), which is disposed between the shelf (22) and the tray; and, The lifting mechanism (5) includes a drive shaft (51) and a lifting assembly. The lifting assembly includes a pressure rod (52), a top rod (53), and a connecting rod (54). The drive shaft (51) is pivotally connected to the bracket (21). The pressure rod (52) and the top rod (53) are respectively fixed on the circumferential surface of the drive shaft (51) and are located on both sides of the central axis of the drive shaft (51). One end of the connecting rod (54) is hinged to the top rod (53), and the other end is hinged to the support frame (41). If the mounting plate (11) covers the shelf (22), the lifting mechanism (5) is used to drive the support frame (41) to move the support frame (44). 1) The screw (42) passes through the second through hole of the shelf (22) and the first through hole of the mounting plate (11) in sequence and protrudes from the upper surface of the mounting plate (11); the position and number of the pressure rod (52) correspond to the cantilever (13). If the mounting plate (11) moves in the direction of covering the shelf (22), the cantilever (13) can press down against the upper surface of the pressure rod (52) and drive the pressure rod (52) to drive the drive shaft (51) to rotate. The drive shaft (51) drives the top rod (53) and the connecting rod (54) to move upward so that the support frame (41) moves in the direction close to the shelf (22); Wherein, the first direction is the axial direction of the shaft, and the second direction is perpendicular to the first direction.

2. The turbine guide vane transfer device according to claim 1, characterized in that, The rotating shaft (12) is connected to a rotating mechanism (7), which is mounted on the lower mounting frame (2). The rotating mechanism (7) is used to drive the rotating shaft (12) to rotate, so as to drive the mounting plate (11) to move in the direction of covering or opening the lower mounting frame (2).

3. The turbine guide vane transfer device according to claim 1, characterized in that, The mounting plate (11) includes a pressure plate and a first connecting plate. The pressure plate has multiple plates and is spaced apart along the first direction or the second direction. Multiple upper brackets (111) are provided on the pressure plate. The first connecting plate is fixed to the end of the multiple pressure plates on the same side. The rotating shaft (12) is fixed to the first connecting plate.

4. The turbine guide vane transfer device according to claim 2, characterized in that, The rotating mechanism (7) includes a drive unit (73), a worm (71) and a worm wheel (72). The drive unit (73) is mounted on the lower mounting bracket (2). The worm (71) is mounted on the lower mounting bracket (2) and is connected to the power output end of the drive unit (73). The worm wheel (72) is fixed to one end of the rotating shaft (12) and meshes with the worm (71).

5. The turbine guide vane transfer device according to claim 4, characterized in that, The support (21) includes columns, the columns having at least three and their bottom ends fixed to the support plate at intervals, and the shelf (22) fixed to the columns.

6. The turbine guide vane transfer device according to claim 5, characterized in that, The shelf (22) includes a shelf and a second connecting plate. The shelf has multiple shelves and is spaced apart along the first direction or along the second direction. Multiple lower support grooves (221) are provided on the shelf. The second connecting plate has two plates, which are respectively fixed to the column and respectively fixed to the ends of the multiple shelves. And / or, the lower mounting bracket (2) further includes support feet, the support feet having at least three and being fixed at intervals to the lower end of the tray.

7. The turbine guide vane transfer device according to claim 5, characterized in that, The mounting plate (11) has a plurality of first through holes, which are spaced apart along the first direction and the second direction respectively; the shelf (22) has a plurality of second through holes, which correspond one-to-one with the first through holes; the fixing mechanism (4) includes a screw (42) and a locking nut (43). If the mounting plate (11) covers the shelf (22), the screw (42) passes through the second through hole and the first through hole and protrudes from the upper surface of the mounting plate (11); the locking nut (43) is threaded into the screw (42) to fix the shaft in the receiving cavity.

8. The turbine guide vane transfer device according to claim 7, characterized in that, The lower ends of the plurality of screws (42) are fixed to the support frame (41); a buffer assembly is provided below the support frame (41), the lower end of the buffer assembly is connected to the upper surface of the tray, and the buffer assembly always drives the support frame (41) to move away from the shelf (22) so that the screws (42) pass through to the lower part of the first through hole; The first through hole is located between any two adjacent upper support slots (111); the second through hole is located between any two adjacent lower support slots (221).

9. The transfer device for turbine guide vanes according to claim 8, characterized in that, The support frame (41) includes a top plate and a third connecting plate. The top plate has multiple plates and is spaced apart along the first direction or the second direction. The third connecting plate has two plates and is fixed to the ends of the multiple top plates respectively. And / or, the buffer assembly includes a plurality of springs (6) spaced apart, the upper end of the springs (6) being connected to the lower surface of the support frame, and the lower end of the springs (6) being connected to the upper surface of the tray.

10. The turbine guide vane transfer device according to claim 1, characterized in that, The first through hole is a strip-shaped hole, and the length of the strip-shaped hole extends perpendicular to the axis of the rotating shaft (12); And / or, the number of the lifting mechanisms (5) is 2 sets, and the 2 sets of lifting mechanisms (5) are respectively located on both sides of the lower mounting frame (2) along the first direction; And / or, the number of the lifting components is at least two, wherein the two lifting components are located at both ends of the drive shaft (51) along its axial direction.

11. The transfer device for turbine guide vanes according to claim 1, characterized in that, Both the upper support groove (111) and the lower support groove (221) are arc-shaped grooves, and the center of the arc-shaped groove coincides with the center of the shaft; and / or, both the lower support groove (221) and the upper support groove (111) are provided with a protective layer; And / or, a reinforcing plate (112) is provided between the outer wall surfaces of any adjacent upper brackets (111).

12. A method for transferring turbine guide vanes, applied to the turbine guide vane transfer device according to any one of claims 1-11, characterized in that, The transfer method includes the following steps: The turbine guide vane (3) is hoisted onto the lower mounting frame (2), and the shaft of the turbine guide vane (3) is accommodated in the lower support groove (221); The upper mounting bracket (1) is placed over the lower mounting bracket (2), and the upper bracket (111) abuts against the shaft. The shaft is fixed in the receiving cavity by the fixing mechanism (4).

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