Hoisting device for seat ring volute of water turbine of pumped storage water pump

Abstract

The invention relates to the technical field of energy storage generator set hoisting, in particular to a pumped storage pump turbine seat ring volute hoisting device which comprises a mounting block, and a steel wire rope is connected to one side of the bottom end of the mounting block in an equal-angle surrounding mode. When the lifting device for the seat ring volute of the pumped storage water pump turbine is used, an operator only needs to place a plurality of limiting covers on the surface of the volute in a clamping mode, then a motor is remotely controlled to drive wheels to walk so that positioning bolts in the limiting covers can be rotated to the positions above screw holes in different positions of the surface of the volute, and then the volute can be lifted. Then through cooperative operation of a stepping motor, a first gear, a second gear and a hydraulic telescopic cylinder, a positioning bolt can be automatically drilled into a screw hole, positioning is completed, and the hoisting assembly efficiency is improved; and the motor driving wheel is controlled to drive the multiple limiting covers to move and reset to the same position of the surface of the volute, then the multiple limiting covers are rapidly separated from the volute, and the overall operation is convenient and fast.

Description

Technical Field

[0001] The invention relates to the technical field of hoisting a pumped-storage generator set, in particular to a hoisting device for a seat ring and volute of a pumped-storage water pump turbine. Background Art

[0002] The core component of the pump-storage system is the pump-turbine, especially its seat ring and volute assembly. The components are large in size, so the volute needs to be hoisted by a hoisting device during transportation and installation.

[0003] When hoisting the volute assembly with the existing hoisting device, it is necessary to manually screw the bolts into the screw holes at different positions on the surface of the volute to ensure uniform force during lifting, and then use the wire rope and the shackle to fix the screwed bolts, and finally lift the volute for transportation through the connection between the crane and the wire rope. Due to the large size of the volute, it is inconvenient to manually screw the bolts into the screw holes at different positions on the surface of the volute, and the overall assembly and lifting efficiency is low. Summary of the invention

[0004] The object of the present invention is to provide a pumped-storage water pump turbine seat ring volute lifting device to solve the problem that the existing lifting device proposed in the above background technology requires manual screwing of bolts into the screw holes at different positions on the volute surface when lifting the volute assembly to ensure uniform force during lifting, and then uses wire rope and shackle to fix the screwed-in bolts, and finally lifts and transports the volute through the connection of a crane and the wire rope. Due to the large size of the volute, it is inconvenient to manually screw the bolts into the screw holes at different positions on the volute surface, and the overall assembly and lifting efficiency is low.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a pumped-storage water pump turbine seat ring volute lifting device, comprising a mounting block, a steel wire rope is connected and arranged at an equal angle on one side of the bottom end of the mounting block, and a limiting cover is arranged on one side of the bottom end of the steel wire rope, and a shackle is fixed on the top of the limiting cover, and one end of the shackle is connected and fixed to one end of the steel wire rope; a movable screwing mechanism, the movable screwing mechanism is arranged inside one side of the limiting cover, the movable screwing mechanism comprises a motor driving wheel and a positioning bolt, the motor driving wheels are evenly arranged inside the two sides of the limiting cover near the bottom end, the positioning bolts are symmetrically arranged longitudinally inside the limiting cover, and a cover release mechanism is arranged inside the side of the limiting cover near the positioning bolt; a lubricating mechanism, the lubricating mechanism is arranged outside one side of the positioning bolt.

[0006] Furthermore, the movable screwing mechanism includes a limit box, a motor drive wheel, a limit rod, a limit ring and a compression spring. The limit box is fixed on the side of the limit cover close to the motor drive wheel. The limit rod is slidably installed inside the limit box, and one end of the limit rod is fixed to one side of the motor drive wheel. The outside of one side of the limit rod is penetrated by a fixed limit ring, and the outside of one side of the limit rod is penetrated by an compression spring, and the two ends of the compression spring are respectively installed on one side of the limit box and the limit ring.

[0007] Furthermore, the movable screwing mechanism also includes a mounting frame, a positioning bolt, a stepper motor, gear one, gear two and a hydraulic telescopic cylinder. A hydraulic telescopic cylinder is fixed to the top outside of the limit cover, and the output end of the hydraulic telescopic cylinder is fixed to the mounting frame. One end of the positioning bolt is embedded and rotatably installed inside one side of the bottom end of the mounting frame. A stepper motor is fixed to one side of the bottom end of the mounting frame, and gear one is fixed to the output end of the stepper motor. Gear two is fixed through the outside of one side of the positioning bolt, and one side of the gear two is meshed and connected with one side of gear one.

[0008] Furthermore, the lubrication mechanism includes a limit frame, a sponge ring, a liquid collecting cylinder and an auxiliary rod. The limit frame is sleeved through the outside of one side of the bottom end of the positioning bolt, and one end of the limit frame is fixedly installed inside one side of the limiting cover. A sponge ring is fixed on the inner wall of the limit frame close to the positioning bolt, a liquid collecting cylinder is arranged inside one side of the limiting cover, and an auxiliary rod is symmetrically and longitudinally fixed at the top edge of the liquid collecting cylinder.

[0009] Furthermore, the lubrication mechanism also includes an auxiliary block, a piston rod, a pull rod and a one-way liquid discharge valve tube. The top end of the auxiliary rod is fixedly installed inside one side of the top end of the limit cover. The piston rod is installed with a sliding seal inside the top end of the liquid collecting cylinder. The top end of the piston rod is fixed with an auxiliary block. The auxiliary block is slidably installed on the outside of one side of the auxiliary rod. A pull rod is longitudinally fixed on one side of the auxiliary block, and one side of the bottom end of the pull rod is in contact with one side of the bottom end of gear one. A one-way liquid discharge valve tube is provided through the bottom end of the liquid collecting cylinder, and the output end of the one-way liquid discharge valve tube passes through the limit frame and is inserted into one side of the sponge ring.

[0010] Furthermore, the lubrication mechanism also includes a one-way liquid inlet valve tube, a storage box and a reset spring. A reset spring is sleeved through the outside of one side of the auxiliary rod, and the two ends of the reset spring are respectively installed on one side of the auxiliary block and the liquid collecting cylinder. A storage box is fixed inside one side of the limit cover, and a one-way liquid inlet valve tube is installed through one side of the bottom end of the liquid collecting cylinder, and the input end of the one-way liquid inlet valve tube is installed through one side of the storage box.

[0011] Furthermore, the cover placing mechanism includes a fixed plate, a through hole, a guide frame and a threaded cover. The fixed plate is fixedly installed inside one side of the limit cover through a bracket. A through hole is penetrated through the middle position of the interior of the fixed plate. A guide frame is longitudinally fixed at equal angles around the top of the fixed plate near the through hole, and a plurality of threaded covers are stacked inside the guide frame.

[0012] Furthermore, the cover placing mechanism also includes a rotating shaft, a rotating block and a connecting frame. The fixed plate is provided with a plurality of rotating shafts that are rotatably mounted at equal angles around the top end of the through hole. A rotating block is fixed through one side of the bottom end of the rotating shaft, and the rotating block is arranged in an I-shape, and a connecting frame is rotatably mounted and connected between one end of each two rotating blocks.

[0013] Furthermore, the cover placing mechanism also includes a stopper and an electric telescopic rod, a stopper is fixed on one side of the top end of the rotating shaft, and the stopper and the rotating block are installed in an X shape when viewed from above, an electric telescopic rod is arranged parallel to the top side of the fixed plate close to one of the connecting frames, and one end of the electric telescopic rod is rotatably installed on the outside of one side of the top end of the fixed plate through a rotating seat, and the output end of the electric telescopic rod is installed and fixed to one side of the connecting frame on this side.

[0014] Furthermore, the cover placing mechanism also includes a gear ring and a rack. The gear ring is fixed through the outside of the top end of the threaded cover, and the rack is fixed to one side of the bottom end of the fixing plate.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. When in use, the operator only needs to snap and place multiple limit covers on the surface of the volute, and then remotely control the motor drive wheel to move so as to move the positioning bolts inside the limit covers to the screw holes at different positions on the surface of the volute, and then the stepper motor, gear 1, gear 2 and hydraulic telescopic cylinder work together to automatically drill the positioning bolts into the screw holes to complete the positioning, thereby improving the overall hoisting and assembly efficiency. After the hoisting is completed, the positioning bolts can be quickly removed and the motor drive wheel can be controlled to drive multiple limit covers to move and reset to the same position on the surface of the volute, and then the multiple limit covers can be quickly separated from the volute to complete the overall hoisting and transportation, and the overall operation is relatively convenient;

[0017] 2. In the process of drilling the positioning bolt into the screw hole on the surface of the volute, as the mounting frame drives the positioning bolt and gear 1 to descend, gear 1 drives the pull rod in contact with the bottom end to descend synchronously, thereby driving the piston rod to descend synchronously to squeeze the lubricating maintenance liquid inside the liquid collecting cylinder into the sponge ring in the limit frame, so that the surface of the positioning bolt passing through the sponge ring is adhered to the lubricating maintenance liquid, making it smoother to screw the positioning bolt into the screw hole, avoiding damage to the thread inside the screw hole on the surface of the volute, and achieving a better overall use effect;

[0018] 3. When the lifting is completed, when the motor driving wheel drives the limit cover to move and reset, when the limit cover passes the top of the screw hole on the surface of the volute, the electric telescopic rod is controlled to extend and retract once, so that one of the threaded covers accumulated between the guide frames is discharged and falls to the top of the screw hole on the surface of the volute, thereby isolating and protecting the inside of the screw hole from the outside world, and preventing some impurities from entering the inside of the screw hole during the volute assembly process and affecting subsequent use. When the threaded cover falls to the top of the screw hole on the surface of the volute, the motor driving wheel drives the limit cover to move again, and during the movement, the rack is engaged with the gear ring, thereby driving the gear ring outside the threaded cover to rotate, so that the threaded cover itself rotates synchronously and is screwed into the inside of the screw hole on the surface of the volute, so that the threaded cover has a better isolation and protection effect, is more firm, and is not easy to fall off. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the lifting device of the present invention;

[0020] Figure 2 This is a schematic diagram showing the lifting device of the present invention lifting the volute;

[0021] Figure 3 It is a schematic diagram of a partially cutaway three-dimensional structure of the limiting cover of the present invention;

[0022] Figure 4 It is a bottom-up stereoscopic structural diagram of the movable screwing mechanism and the limiting cover of the present invention;

[0023] Figure 5 For the present invention Figure 4 The enlarged structural diagram at A in the middle;

[0024] Figure 6 This is a schematic diagram showing the motor driving wheel of the present invention driving the limit cover to move on the surface of the volute;

[0025] Figure 7 It is a schematic diagram of the three-dimensional structure of the lubrication mechanism and the limit cover of the present invention;

[0026] Figure 8 For the present invention Figure 7 The enlarged structural diagram at B in the middle;

[0027] Fig. 9 It is a schematic diagram of a partially cutaway three-dimensional structure of the cover placing mechanism and the limiting cover installation of the present invention;

[0028] Fig.10 For the present invention Fig. 9 The enlarged structural diagram at C in the middle;

[0029] Fig.11 It is a schematic diagram of the top view of the installation structure of the fixing plate and the electric telescopic rod of the present invention.

[0030] In the figure: 1, mounting block; 2, wire rope; 3, limit cover; 4, shackle; 5, moving screwing mechanism; 501, limit box; 502, motor driving wheel; 503, limit rod; 504, limit ring; 505, extrusion spring; 506, mounting frame; 507, positioning bolt; 508, stepping motor; 509, gear 1; 5010, gear 2; 5011, hydraulic telescopic cylinder; 6, lubrication mechanism; 601, limit frame; 602, sponge ring; 603, liquid collecting cylinder; 60 4. One-way liquid inlet valve tube; 605. Storage box; 606. Auxiliary rod; 607. Auxiliary block; 608. Piston rod; 609. Pull rod; 6010. Return spring; 6011. One-way liquid discharge valve tube; 7. Cover placing mechanism; 701. Fixed plate; 702. Through hole; 703. Guide frame; 704. Threaded cover; 705. Rotating shaft; 706. Rotating block; 707. Stop block; 708. Connecting frame; 709. Electric telescopic rod; 7010. Gear ring; 7011. Rack. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] See also Figure 1-11 The present invention provides a technical solution: a pumped storage water pump turbine seat ring volute lifting device, comprising a mounting block 1, a steel wire rope 2 is connected and arranged at an equal angle on one side of the bottom end of the mounting block 1, and a limiting cover 3 is arranged on one side of the bottom end of the steel wire rope 2, and a shackle 4 is fixed on the top of the limiting cover 3, and one end of the shackle 4 is connected and fixed to one end of the steel wire rope 2; a movable screwing mechanism 5, the movable screwing mechanism 5 is arranged inside one side of the limiting cover 3, the movable screwing mechanism 5 includes a motor driving wheel 502 and a positioning bolt 507, the motor driving wheels 502 are evenly spaced inside the two sides of the limiting cover 3 near the bottom end, the positioning bolts 507 are symmetrically and longitudinally arranged inside the limiting cover 3, and a cover placing mechanism 7 is arranged inside the one side of the limiting cover 3 near the positioning bolt 507; a lubricating mechanism 6, the lubricating mechanism 6 is arranged outside one side of the positioning bolt 507.

[0033] When the pumped storage water pump turbine seat ring volute lifting device provided by the present invention is actually used, the mounting block 1 is first connected to an external crane, and then a plurality of limit covers 3 connected with a steel wire rope 2 and a shackle 4 are centrally engaged and placed on one side of the top of the volute, and then the movement screwing mechanism 5 inside each limit cover 3 is controlled by an existing remote control mechanism to operate, so that the plurality of limit covers 3 are automatically moved to different positions on the surface of the volute (such as Figure 6 As shown), it ensures the uniformity of force during subsequent hoisting and the stability of hoisting. At the same time, a high-definition positioning camera can be installed inside the limit cover 3, making the device more convenient to use and more accurate in positioning. When the limit cover 3 moves to the specified position, it can automatically drill the internal positioning bolt 507 into the corresponding screw hole to complete the positioning. At the same time, when the positioning bolt 507 is drilled into the screw hole, the lubrication mechanism 6 will be triggered to run automatically, so that the surface of the positioning bolt 507 is adhered to the lubricating maintenance liquid, so that the positioning bolt 507 is smoother when screwed into the screw hole, avoiding the thread inside the screw hole on the surface of the volute from being stuck. The whole lifting and transportation is completed, and the overall operation is more convenient. When the lifting is completed, when the limit cover 3 is moved and reset, the cover placing mechanism 7 can be synchronously controlled to operate, so as to seal and isolate the top ends of the screw holes on the surface of the volute, so as to avoid some impurities from entering the inside of the screw holes during the assembly of the volute, affecting the subsequent use.

[0034] In some embodiments, the movable screwing mechanism 5 includes a limit box 501, a motor drive wheel 502, a limit rod 503, a limit ring 504 and an extrusion spring 505. The limit box 501 is fixed on the side of the limit cover 3 close to the motor drive wheel 502. The limit rod 503 is slidably installed inside the limit box 501, and one end of the limit rod 503 is fixed to one side of the motor drive wheel 502. The limit ring 504 is fixed on the outside of one side of the limit rod 503, and the extrusion spring 505 is sleeved on the outside of one side of the limit rod 503, and the two ends of the extrusion spring 505 are respectively installed on one side of the limit box 501 and the limit ring 504.

[0035] Combination Figure 2 and Figure 5 As shown, when in use, the device applies a clamping force to the limit rod 503 and the motor drive wheel 502 on one side through the rebound squeezing of the squeezing spring 505, so that the motor drive wheel 502 can better contact and fit with the surface of the volute, making the motor drive wheel 502 more stable and smooth when moving on the surface of the volute, and not easy to fall off, and the overall use effect is better.

[0036] In some embodiments, the movable screwing mechanism 5 also includes a mounting frame 506, a positioning bolt 507, a stepper motor 508, a gear one 509, a gear two 5010 and a hydraulic telescopic cylinder 5011. The hydraulic telescopic cylinder 5011 is fixed to the top outside of the limiting cover 3, and the output end of the hydraulic telescopic cylinder 5011 is fixed to the mounting frame 506. One end of the positioning bolt 507 is embedded and rotatably installed inside one side of the bottom end of the mounting frame 506. The stepper motor 508 is fixed to one side of the bottom end of the mounting frame 506, and the output end of the stepper motor 508 is fixed to gear one 509. Gear two 5010 is fixed through the outside of one side of the positioning bolt 507, and one side of gear two 5010 is meshed and connected with one side of gear one 509.

[0037] Combination Figure 2 , Figure 4 , Figure 6 As shown, when the motor driving wheel 502 inside each limit cover 3 is controlled to run through the existing remote control mechanism, and the multiple limit covers 3 are automatically moved to different positions on the surface of the volute, the stepping motor 508 on one side is started to run, and the output shaft of the stepping motor 508 rotates to drive the gear 1 509 on the bottom side to rotate, and the rotation of the gear 1 509 drives the meshing gear 2 5010 on both sides to rotate synchronously, and the rotation of the gear 2 5010 drives the positioning bolt 507 to rotate synchronously, and at the same time controls the hydraulic telescopic cylinder 5011 to slowly rotate. It is slowly extended, thereby driving the mounting frame 506 and the rotating positioning bolt 507 at the bottom thereof to synchronously descend and be screwed into the corresponding screw hole at the top of the volute, completing the fixation between the positioning bolt 507 and the volute, ensuring stability during subsequent lifting. At the same time, after the lifting is completed, the hydraulic telescopic cylinder 5011 can be slowly recovered and the stepper motor 508 can be reversed, so that the positioning bolt 507 is screwed out from the inside of the screw hole, thereby completing the disassembly of the positioning bolt 507 and the volute, making the overall disassembly and assembly convenient, reducing the work pressure of the staff, and the overall use effect is good.

[0038] In some embodiments, the lubrication mechanism 6 includes a limit frame 601, a sponge ring 602, a liquid collecting cylinder 603 and an auxiliary rod 606. The limit frame 601 is sleeved through the outside of one side of the bottom end of the positioning bolt 507, and one end of the limit frame 601 is fixedly installed inside one side of the limiting cover 3. A sponge ring 602 is fixed on the inner wall of the limit frame 601 on the side close to the positioning bolt 507. A liquid collecting cylinder 603 is arranged inside one side of the limiting cover 3, and an auxiliary rod 606 is symmetrically fixed longitudinally at the top edge of the liquid collecting cylinder 603; the lubrication mechanism 6 also includes an auxiliary block 607, a piston rod 608, a pull rod 609 and a one-way discharge valve pipe 601 1. The top of the auxiliary rod 606 is fixedly installed inside the top side of the limit cover 3, the top of the liquid collecting cylinder 603 is internally slidably sealed with a piston rod 608, the top of the piston rod 608 is fixed with an auxiliary block 607, the auxiliary block 607 is slidably installed on the outside of one side of the auxiliary rod 606, a pull rod 609 is longitudinally fixed on one side of the auxiliary block 607, and the bottom end of the pull rod 609 is in contact with the bottom end of the gear 509, the bottom end of the liquid collecting cylinder 603 is passed through and connected with a one-way discharge valve pipe 6011, the output end of the one-way discharge valve pipe 6011 passes through the limit frame 601 and is inserted into one side of the sponge ring 602.

[0039] Combination Figure 7 and Figure 8 As shown, in the process of drilling the positioning bolt 507 into the screw hole on the surface of the volute, as the mounting frame 506 drives the positioning bolt 507 and gear 509 to descend, the gear 509 drives the pull rod 609 at the bottom to descend synchronously, thereby driving the auxiliary block 607 and the piston rod 608 to descend synchronously, thereby squeezing the lubricating maintenance liquid originally drawn into the liquid collecting cylinder 603 into the sponge ring 602 in the limiting frame 601, so that the surface of the positioning bolt 507 passing through the sponge ring 602 is adhered to the lubricating maintenance liquid, so that the positioning bolt 507 can be screwed into the screw hole more smoothly, avoiding the damage to the thread inside the screw hole on the surface of the volute, and the overall use effect is better.

[0040] In some embodiments, the lubrication mechanism 6 also includes a one-way liquid inlet valve tube 604, a storage box 605 and a reset spring 6010. The reset spring 6010 is sleeved through the outside of one side of the auxiliary rod 606, and the two ends of the reset spring 6010 are respectively installed on one side of the auxiliary block 607 and the liquid collecting cylinder 603. A storage box 605 is fixed inside one side of the limiting cover 3, and a one-way liquid inlet valve tube 604 is installed through one side of the bottom end of the liquid collecting cylinder 603, and the input end of the one-way liquid inlet valve tube 604 is installed inside one side of the storage box 605.

[0041] Combination Figure 7 and Figure 8As shown, after the lifting is completed, the hydraulic telescopic cylinder 5011 slowly retracts to drive the positioning bolt 507 to be screwed out from the inside of the screw hole. At this time, the piston rod 608 and the pull rod 609 are lifted synchronously as a whole through the rebound of the reset spring 6010. At the same time, the one-way liquid inlet valve tube 604 and the storage box 605 are connected, so that the piston rod 608 will draw the lubricating maintenance liquid inside the storage box 605 into the inside of the liquid collecting cylinder 603 again when it is lifted, so that when it is used again later, there is still lubricating maintenance liquid inside the liquid collecting cylinder 603 that can be squeezed out, so that the whole can be reused.

[0042] In some embodiments, the cover placing mechanism 7 includes a fixed plate 701, a through hole 702, a guide frame 703 and a threaded cover 704. The fixed plate 701 is fixedly installed on one side of the limit cover 3 through a bracket. The through hole 702 is penetrated in the middle position of the inner part of the fixed plate 701. The guide frame 703 is longitudinally fixed at an equal angle around the top of the fixed plate 701 near the through hole 702. A plurality of threaded covers 704 are stacked and placed inside the guide frame 703; the cover placing mechanism 7 also includes a rotating shaft 705, a rotating block 706 and a connecting frame 708. The fixed plate 701 is rotatably installed with a plurality of rotating shafts 705 at an equal angle around the top of the through hole 702. The bottom end of the rotating shaft 705 is penetrated and fixed with a rotating block 706, and the rotating block 706 is arranged in an in-shaped shape, and every two rotating blocks 70 6 are rotatably installed and connected with a connecting frame 708; the cover placing mechanism 7 also includes a stopper 707 and an electric telescopic rod 709, and a stopper 707 is fixed on one side of the top of the rotating shaft 705, and the stopper 707 and the rotating block 706 are installed in an X shape when viewed from above, and an electric telescopic rod 709 is arranged parallel to the top side of the fixed plate 701 close to one of the connecting frames 708, and one end of the electric telescopic rod 709 is rotatably installed on the outside of the top side of the fixed plate 701 through a rotating seat, and the output end of the electric telescopic rod 709 is fixed to one side of the connecting frame 708 on this side; the cover placing mechanism 7 also includes a gear ring 7010 and a rack 7011, and a gear ring 7010 is fixed to the outside of the top of the threaded cover 704, and a rack 7011 is fixed to one side of the bottom end of the fixed plate 701.

[0043] Combination Fig. 9 , Fig.10 and Fig.11As shown, when the lifting is completed, the motor driving wheel 502 drives the limit cover 3 to move, reset and disassemble on the surface of the volute. When the limit cover 3 passes the top of the screw hole on the surface of the volute, the motor driving wheel 502 is controlled to stop running. Then, the electric telescopic rod 709 is controlled to extend. When the electric telescopic rod 709 is extended, it will drive the connecting frame 708 on one side to move synchronously. At this time, the installation of multiple connecting frames 708 and the rotating block 706 is coordinated, so that the rotating block 706 on the outside of the through hole 702 rotates synchronously by a certain angle. After rotating by a certain angle, one end of the rotating block 706 no longer restricts the threaded cover 704 at the bottom end of the guide frame 703, so that the threaded cover 704 at the bottom end is discharged and falls to the top of the screw hole on the surface of the volute, thereby isolating and protecting the inside of the screw hole from the outside world, avoiding some impurities from entering the inside of the screw hole during the assembly process of the volute, affecting subsequent use.

[0044] When the rotating block 706 is rotated to a certain angle, the stopper 707 will be driven to rotate a certain angle synchronously, so that when the threaded cap 704 at the bottom end of the guide frame 703 is discharged, the second to last threaded cap 704 in the guide frame 703 will be blocked by the stopper 707 rotated to a certain angle, thereby preventing all the threaded caps 704 in the guide frame 703 from falling off, thereby ensuring stable operation. When the electric telescopic rod 709 is recovered, the rotating block 706 and the stopper 707 will be driven to rotate and reset. After the stopper 707 is rotated and reset, the second to last threaded cap 704 intercepted at its top end will no longer be resisted by the stopper 707 and will fall to the top side of the rotating block 706 that has been rotated and reset, so that when the rotating block 706 is rotated again, the threaded cap 704 at its top end will fall and be discharged again, so that the discharge quantity of the threaded caps 704 can be controlled as a whole, thereby ensuring the overall operation stability.

[0045] When the threaded cover 704 falls to the top of the screw hole on the surface of the volute, the motor driving wheel 502 drives the limit cover 3 to move again, so that the tops of all the screw holes on the surface of the volute are covered with the threaded cover 704. During the movement of the limit cover 3 again, the rack 7011 is engaged with the gear ring 7010, thereby driving the gear ring 7010 outside the threaded cover 704 to rotate, so that the threaded cover 704 itself rotates synchronously and is screwed into the screw hole on the surface of the volute, so that the threaded cover 704 has a better isolation and protection effect, is more firm, and is not easy to fall off.

[0046] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The content not described in detail in this specification belongs to the prior art known to professional and technical personnel in this field.

[0047] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pumped storage water pump turbine seat ring volute lifting device, comprising a mounting block (1), characterized in that: A steel wire rope (2) is connected and arranged around one side of the bottom end of the installation block (1) at an equal angle, and a limit cover (3) is arranged on one side of the bottom end of the steel wire rope (2), and a shackle (4) is fixed on the top end of the limit cover (3), and one end of the shackle (4) is connected and fixed to one end of the steel wire rope (2); A movable screwing mechanism (5), the movable screwing mechanism (5) being arranged inside one side of the limiting cover (3), the movable screwing mechanism (5) comprising a motor drive wheel (502) and a positioning bolt (507), the motor drive wheels (502) being arranged at equal intervals inside the two sides of the limiting cover (3) close to the bottom end, the positioning bolts (507) being symmetrically arranged longitudinally inside the limiting cover (3), and a cover placing mechanism (7) being arranged inside one side of the limiting cover (3) close to the positioning bolt (507); A lubricating mechanism (6), wherein the lubricating mechanism (6) is arranged outside one side of the positioning bolt (507).

2. A pumped storage water pump turbine seat ring volute lifting device according to claim 1, characterized in that: The movable screwing mechanism (5) comprises a limit box (501), a motor drive wheel (502), a limit rod (503), a limit ring (504) and a compression spring (505); a limit box (501) is fixed on one side of the limit cover (3) close to the motor drive wheel (502); a limit rod (503) is slidably installed through the interior of the limit box (501); one end of the limit rod (503) is fixedly installed on one side of the motor drive wheel (502); a limit ring (504) is fixedly installed through the exterior of one side of the limit rod (503); a compression spring (505) is sleeved through the exterior of one side of the limit rod (503); and two ends of the compression spring (505) are respectively installed on one side of the limit box (501) and the limit ring (504).

3. A pumped storage water pump turbine seat ring volute lifting device according to claim 1, characterized in that: The movable screwing mechanism (5) further comprises a mounting frame (506), a positioning bolt (507), a stepping motor (508), a gear 1 (509), a gear 2 (5010) and a hydraulic telescopic cylinder (5011); the hydraulic telescopic cylinder (5011) is fixed to the top of the limiting cover (3), and the output end of the hydraulic telescopic cylinder (5011) is fixed to the mounting frame (506); one end of the positioning bolt (507) is embedded and rotatably mounted inside one side of the bottom end of the mounting frame (506); the stepping motor (508) is fixed to one side of the bottom end of the mounting frame (506), and the output end of the stepping motor (508) is fixed to the gear 1 (509); the gear 2 (5010) is penetrated and fixed to one side of the positioning bolt (507), and one side of the gear 2 (5010) is meshedly connected with one side of the gear 1 (509).

4. A pumped storage water pump turbine seat ring volute lifting device according to claim 3, characterized in that: The lubricating mechanism (6) comprises a limiting frame (601), a sponge ring (602), a liquid collecting cylinder (603) and an auxiliary rod (606); the limiting frame (601) is sleeved through the outside of one side of the bottom end of the positioning bolt (507), and one end of the limiting frame (601) is fixedly mounted inside one side of the limiting cover (3); a sponge ring (602) is fixed on the inner wall of the limiting frame (601) on the side close to the positioning bolt (507); a liquid collecting cylinder (603) is arranged inside one side of the limiting cover (3), and an auxiliary rod (606) is symmetrically and longitudinally fixed at the top edge of the liquid collecting cylinder (603).

5. A pumped storage water pump turbine seat ring volute lifting device according to claim 4, characterized in that: The lubricating mechanism (6) further comprises an auxiliary block (607), a piston rod (608), a pull rod (609) and a one-way liquid discharge valve tube (6011); the top end of the auxiliary rod (606) is fixedly mounted inside the top side of the limit cover (3); the top end of the liquid collecting cylinder (603) is internally slidably sealed with a piston rod (608); the top end of the piston rod (608) is fixedly mounted with an auxiliary block (607); the auxiliary block (607) penetrates the sliding It is installed on the outside of one side of the auxiliary rod (606), a pull rod (609) is longitudinally fixed on one side of the auxiliary block (607), and the bottom end of the pull rod (609) is in contact with the bottom end of the gear 1 (509). The bottom end of the liquid collecting cylinder (603) is penetrated by a one-way liquid discharge valve tube (6011), and the output end of the one-way liquid discharge valve tube (6011) passes through the limit frame (601) and is inserted into the inside of one side of the sponge ring (602).

6. A pumped storage water pump turbine seat ring volute lifting device according to claim 5, characterized in that: The lubricating mechanism (6) further comprises a one-way liquid inlet valve tube (604), a storage box (605) and a reset spring (6010); a reset spring (6010) is sleeved through one side of the auxiliary rod (606), and two ends of the reset spring (6010) are respectively mounted on one side of the auxiliary block (607) and the liquid collecting cylinder (603); a storage box (605) is fixed to one side of the limit cover (3); a one-way liquid inlet valve tube (604) is installed through one side of the bottom end of the liquid collecting cylinder (603), and an input end of the one-way liquid inlet valve tube (604) is installed through one side of the storage box (605).

7. A pumped storage water pump turbine seat ring volute lifting device according to claim 1, characterized in that: The cap placing mechanism (7) comprises a fixing plate (701), a through hole (702), a guide frame (703) and a threaded cap (704); the fixing plate (701) is fixedly mounted inside one side of the limiting cover (3) via a bracket; a through hole (702) is penetrated through the middle position of the fixing plate (701); a guide frame (703) is longitudinally fixed at equal angles around the top end of the through hole (702) of the fixing plate (701); and a plurality of threaded caps (704) are stacked and placed inside the guide frame (703).

8. A pumped storage water pump turbine seat ring volute lifting device according to claim 7, characterized in that: The lid placing mechanism (7) further includes a rotating shaft (705), a rotating block (706) and a connecting frame (708). A plurality of rotating shafts (705) are rotatably installed around the top end of the fixing plate (701) near the through hole (702) at equal angles. One side of the bottom end of each rotating shaft (705) is fixedly penetrated with a rotating block (706), and the rotating block (706) is arranged in a V shape. A connecting frame (708) is rotatably installed between one ends of every two rotating blocks (706).

9. A pumped storage water pump turbine seat ring volute lifting device according to claim 8, characterized in that: The lid placing mechanism (7) further includes a stop block (707) and an electric telescopic rod (709). One side of the top end of each rotating shaft (705) is fixedly provided with a stop block (707), and the installation of the stop block (707) and the rotating block (706) is in an X shape when viewed from above. An electric telescopic rod (709) is arranged in parallel on one side of the top end of the fixing plate (701) near one of the connecting frames (708). One end of the electric telescopic rod (709) is rotatably installed outside the top end of one side of the fixing plate (701) through a rotating seat, and the output end of the electric telescopic rod (709) is fixedly installed with one side of the connecting frame (708) on this side.

10. A pumped storage water pump turbine seat ring volute lifting device according to claim 7, characterized in that: The lid placing mechanism (7) further includes a toothed ring (7010) and a rack (7011). The toothed rings (7010) are fixedly penetrated through the outer part of the top end of the threaded lid (704). A rack (7011) is fixedly provided on one side of the bottom end of the fixing plate (701).

Images