Transferring and turning-over device for movable guide vanes of water guide mechanism of hydropower station
By designing a transport and flip device for the guide vane of hydropower station, the combination of suspenders, pulleys, rotating hoisting and flip wheels is used to solve the problem of transport and flip of guide vanes, and the safety and work efficiency are improved , avoiding equipment damage and human operation difficulties.
Patent Information
- Application Number
- CN202421154770.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-24
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-05-24
AI Technical Summary
In hydroelectric generator sets, the irregular shape and weight of the guide vane lead to safety risks of rotation wear, crooked pulling and equipment collision damage during transfer and flip, and the prior art is difficult to effectively solve these problems.
A movable guide vane transport and flip device including suspended beams, rotary hoisting lugs, flip wheels and pulleys is designed, through the coordination of suspenders and pulleys, the connection between rotary hoisting lugs and threaded columns, and the lock of flip wheels The buckle system and length adjustment basket achieve stable lifting and flipping of guide vanes, reducing strap wear and improving operational convenience.
It effectively reduces the wear of the suspender, improves safety and the safety of equipment personnel, avoids crooked pulling and slanting, improves work efficiency, and extends the service life of the suspender.
Smart Images
Figure CN222293374U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of active guide vane repair tools, in particular to a movable guide vane transport and overturning device for a water guide mechanism of a hydropower station. Background Art
[0002] In each large hydroelectric generating unit, there are 24 guide vanes in total, which are shaped like kitchen knives, 4-6 meters long, weigh 13 tons, and have irregular shapes. When the unit is overhauled, the guide vanes need to be hoisted to the hall level for surface inspection and processing. After one side is processed, the back side needs to be turned up for further inspection and processing. Since the guide vanes are irregular in shape but heavy, transportation and turning over face great difficulties. Their center of gravity is asymmetrical with the lifting point. When the sling is used for lifting and transportation, the guide vanes rotate and wear the slings. When the guide vanes are turned over, since human power cannot push the guide vanes to rotate, external force is required to push the guide vanes to rotate and turn over, which is easy to cause crooked lifting and equipment collision damage, posing a safety risk. Due to the above reasons, a set of devices dedicated to the transportation and turning over of guide vanes is now designed to solve the problem of lifting and turning over the guide vanes, avoid crooked lifting and irregular operations, improve the safety of equipment and personnel, and improve work efficiency. Utility Model Content
[0003] In view of the deficiencies in the prior art, the utility model provides a device for transporting and turning over movable guide vanes of a water guide mechanism of a hydropower station. In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:
[0004] A device for transporting and turning over movable guide vanes of a water-guiding mechanism of a hydropower station comprises a hanging beam, a rotating hanging ear and a turning wheel, pulleys are respectively installed at both ends of the hanging beam, a hanging buckle is installed on the inner side of one of the pulleys, slings are installed on both pulleys, a hanging lock is installed on the hanging buckle, a threaded column is provided on the rotating hanging ear, the threaded column is threadedly connected to the end of the guide vane opening, a hanging ring is provided on the rotating hanging ear, the hanging ring is fixedly connected to the sling close to the side of the hanging lock, a circular hole is provided in the center of the turning wheel, two convex columns matching with the grooves on the end of the guide vane are fixedly connected on one end face of the turning wheel, the turning wheel is sleeved on the threaded column and fixed to the end of the guide vane through the rotating hanging ear, a locking buckle is also fixedly connected to the turning wheel, the locking buckle is fixedly connected to the hanging lock, and another sling is slidingly sleeved on the other end of the guide vane.
[0005] Furthermore, the lifting ring is rotatably connected to the end of the rotating lifting ear.
[0006] Furthermore, the turning wheel is provided with a plurality of connection holes arranged in a circular array, and the locking buckle is detachably mounted on the connection holes by means of bolts.
[0007] Furthermore, the end section of the rotating lifting ear is configured to be a regular hexagon.
[0008] Furthermore, a length-adjusting basket is fixedly installed between the pulley and the hanging beam.
[0009] Furthermore, a hand chain hoist is installed on the lifting lock.
[0010] Compared with the prior art, the utility model has the following beneficial effects:
[0011] 1. Use the sling and pulley together. When the guide vane is turned over, the sling set on one end of the guide vane rotates with the guide vane, which reduces the wear of the sling, improves the durability of the sling, and improves safety;
[0012] 2. Use two slings to lift the two ends of the guide vane, use the sling lock to contract to pull the lock on the flip wheel, and use the guide vane as the axis to rotate the flip wheel to achieve the flipping of the guide vane. The operation is more convenient and more labor-saving, avoiding crooked pulling and slanting lifting, improving the safety of equipment and personnel, and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] The utility model is further described below in conjunction with the accompanying drawings and embodiments:
[0014] Figure 1 This is a schematic diagram of the working of the flip guide vane in the embodiment of the utility model;
[0015] Figure 2 This is a schematic diagram of the matching structure of the rotating lifting lug and the guide vane in the embodiment of the utility model;
[0016] Figure 3 This is a schematic diagram of the rotating lifting ear structure of an embodiment of the utility model.
[0017] In the above drawings: hanging beam 1, rotating lifting ear 2, turning wheel 3, pulley 4, lifting belt 5, lifting buckle 6, lifting lock 7, threaded column 8, lifting ring 9, protruding column 10, locking buckle 11, connecting hole 12, length adjustment basket 13, hand winch 14. DETAILED DESCRIPTION
[0018] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and embodiments.
[0019] Example 1
[0020] Please refer to Figure 1-3As shown, a movable guide vane transport and turning device of a water guide mechanism of a hydropower station comprises a hanging beam 1, a rotating lifting ear 2, and a turning wheel 3. Pulleys 4 are respectively installed at both ends of the hanging beam 1, a hanging buckle 6 is installed on the inner side of one of the pulleys 4, and a lifting belt 5 is installed on both pulleys 4. A telescopic lifting lock 7 is installed on the lifting buckle 6. The rotating lifting ear 2 is provided with a threaded column 8, and the threaded column 8 is threadedly connected to the end of the guide vane opening. The rotating lifting ear 2 is provided with a lifting ring 9, and the lifting ring 9 is fixedly connected to the lifting belt 5 on the side close to the lifting lock 7. A circular hole is opened in the center of the turning wheel 3, and two convex columns 10 matching the grooves on the end of the guide vane are fixedly connected to one end face of the turning wheel 3. The turning wheel 3 is sleeved on the threaded column 8 and fixed to the end of the guide vane through the rotating lifting ear 2. A lock buckle 11 is also fixedly connected to the turning wheel 3, and the lock buckle 11 is fixedly connected to one end of the lifting lock 7. Another lifting belt 5 is slidably sleeved on the other end of the guide vane.
[0021] When using, Figure 1 As shown, the circular hole of the overturning wheel 3 is matched with the hole at the end of the guide vane, so that the convex column 10 of the overturning wheel 3 is stuck in the groove of the guide vane, and the threaded column 8 of the rotating ear 2 is threadedly matched with the hole at the end of the guide vane, so that the rotating ear 2 presses the overturning wheel 3 to the end of the guide vane, and the lifting beam 1 is lowered, and the lifting belt 5 close to one end of the lifting lock 7 is fixed on the lifting ring 9 of the rotating ear 2, and the telescopic lifting lock 7 is fixed on the lock 11 of the overturning wheel 3, and the other lifting belt 5 is sleeved on the other end of the guide vane, and the lifting beam 1 is raised to lift the guide vane, and then the lifting lock 7 is retracted. The lifting lock 7 pulls the lock 11 on the overturning wheel 3, and the overturning wheel 3 is rotated with the guide vane as the axis to realize the overturning of the guide vane. The operation is more convenient and labor-saving, and it avoids crooked pulling and slanting, improves the safety of equipment and personnel, and improves work efficiency. During this process, the sling 5 sleeved on the other end of the guide vane rotates along with the guide vane, which reduces the wear of the sling 5, improves the durability of the sling 5, and improves safety.
[0022] In this embodiment, if Figure 2 As shown, the lifting ring 9 is rotatably connected to the end of the rotating lifting ear 2. When the guide vane is turned over, the rotating lifting ring 9 reduces the shaking of the guide vane and improves the safety of operation.
[0023] In this embodiment, if Figure 2 As shown, the flip wheel 3 is provided with a plurality of connection holes 12 arranged in a circular array, and the lock buckle 11 is detachably mounted on the connection hole 12 by bolts. According to the position where the guide vane is lifted, the lock buckle 11 can be mounted on the connection hole 12 at the lower side of the flip wheel 3, or the lock buckle 11 can be mounted on all the connection holes 12, and the lifting lock 7 is fixedly connected to the lock buckle 11 at the lower side of the flip wheel 3, so as to flip the guide vane for easy operation.
[0024] In this embodiment, if Figure 2 , Figure 3 As shown, the end section of the rotating lifting lug 2 is set to be a regular hexagon, so as to facilitate the use of tools to fix the rotating lifting lug 2 to the end of the guide vane.
[0025] In this embodiment, if Figure 1 As shown, a length adjustment basket 13 is fixedly installed between the pulley 4 and the hanging beam 1. The height position of the two pulleys 4 is adjusted by the length adjustment basket 13, thereby adjusting the horizontal position of the two ends of the guide vane suspended by the sling 5, so as to facilitate adjusting the guide vane to a horizontal level, facilitate turning over the guide vane, and improve safety during the turning process.
[0026] In this embodiment, if Figure 1 As shown, a hand chain hoist 14 is installed on the lifting lock 7, and an electric hydraulic cylinder can also be connected to the lifting lock 7. The hand chain hoist 14 or the electric hydraulic cylinder is used to stretch the lifting lock 7, which is more labor-saving and convenient to operate.
[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.
Claims
1. A device for transporting and turning over movable guide vanes of a water guide mechanism of a hydropower station, characterized in that: It includes a hanging beam, a rotating lifting ear, and a flipping wheel, wherein pulleys are respectively installed at both ends of the hanging beam, a lifting buckle is installed on the inner side of one of the pulleys, and slings are installed on both pulleys, and a telescopic lifting lock is installed on the lifting buckle, the rotating lifting ear is provided with a threaded column, and the threaded column is threadedly connected to the end of the guide vane opening, and a lifting ring is provided on the rotating lifting ear, and the lifting ring is fixedly connected to the sling close to the side of the lifting lock, a circular hole is opened in the center of the flipping wheel, and two convex columns matching with the grooves on the end of the guide vane are fixedly connected on one end face of the flipping wheel, the flipping wheel is sleeved on the threaded column and fixed to the end of the guide vane through the rotating lifting ear, and a locking buckle is also fixedly connected to the flipping wheel, and the locking buckle is fixedly connected to one end of the lifting lock, and another sling is slidingly sleeved on the other end of the guide vane.
2. A device for transporting and turning over movable guide vanes of a water guide mechanism of a hydropower station according to claim 1, characterized in that: The lifting ring is rotatably connected to the end of the rotating lifting ear.
3. The device for transporting and turning over movable guide vanes of a water guide mechanism of a hydropower station according to claim 1, characterized in that: The turning wheel is provided with a plurality of connection holes arranged in a circular array, and the lock buckle is detachably mounted on the connection holes by means of bolts.
4. The device for transporting and turning over movable guide vanes of a water guide mechanism of a hydropower station according to claim 1, characterized in that: The end section of the rotating lifting ear is arranged to be a regular hexagon.
5. The device for transporting and turning over movable guide vanes of a water guide mechanism of a hydropower station according to claim 1, characterized in that: A length-adjusting basket is fixedly installed between the pulley and the hanging beam.
6. The device for transporting and turning over movable guide vanes of a water guide mechanism of a hydropower station according to claim 1, characterized in that: A hand chain hoist is installed on the lifting lock.