An adjustable spacing type runner turning-over device

Abstract

The utility model relates to a distance-adjustable runner turning-over device, belonging to the technical field of water turbine runner assembly and manufacturing. It solves the problems of complex adjustment and small adjustable range in the prior art. The technical points are as follows: the main hook coupling device is installed on the top of the balance beam, the main hook of the crane hooks the main hook coupling device, the pulley adjusting device is fixed on both sides of the balance beam, and the fixed pulley is installed on the pulley adjusting device; the turning-over lifting rungs are welded on both sides of the runner, the turning-over lifting rungs are connected with the lifting rung base, the lifting rung pulleys are connected with the turning-over lifting rungs, one end of the steel wire rope is hung on the fixed pulley, and the other end is hung on the lifting rung pulley. The utility model sets the pulley adjusting device, which can conveniently and quickly adjust the distance between the pulleys, indirectly adjust the distance between the steel wire ropes on both sides, adapt to the hoisting and turning-over of runners of different sizes, is suitable for the turning-over and hoisting of runners of various sizes, greatly reduces the production cost and production cycle, and improves the production benefit.

Description

Technical Field

[0001] This utility model relates to the field of turbine runner assembly and manufacturing technology, specifically an adjustable spacing runner turning device. Background Technology

[0002] Mixed-flow turbine generator sets, as core equipment in the hydropower energy field, have runners as key components for energy conversion. These runners are characterized by their large size and concentrated weight, with large runners often having diameters ranging from several meters to over ten meters and weighing up to hundreds of tons. During the runner manufacturing process, multiple critical steps, from blade welding and weld flaw detection to surface grinding and static balance testing, require the runner to be turned over multiple times to ensure the machining accuracy and testing effectiveness of each surface. The safety and efficiency of these turning operations directly affect the runner's production quality and manufacturing cycle.

[0003] Currently, the most common method for turning wheel slewing machines in the industry is aerial turning technology. This technology mainly utilizes a combination structure consisting of a balancing beam, a set of lifting clamps, and a seamless ring-shaped steel wire rope. However, it still has certain limitations. The balance adjustment range is strictly limited by the structural design of the balancing beam and the specifications of the lifting clamps, allowing only fine adjustments within a fixed stress range. This can easily lead to situations where adjustments become stuck or ineffective, preventing the wheel from turning smoothly. Furthermore, it cannot be flexibly combined and adapted according to the wheel's size, weight, and structural form. The installation and disassembly process is cumbersome, affecting operational efficiency, and wear and tear after long-term use requires regular maintenance and replacement, increasing operating costs.

[0004] Therefore, there is an urgent need to propose an adjustable spacing type of rotating wheel turning device to solve the problems of complex adjustment and small adjustable range in the existing technology. Utility Model Content

[0005] In view of the above facts, in order to solve the problems of complex adjustment and small adjustable range in the prior art, this utility model designs an adjustable spacing type rotating wheel turning device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An adjustable spacing type rotating and turning device includes a main hook connecting device, a balance lifting beam, a fixed pulley, a pulley adjusting device, a steel wire rope, a turning lifting ramp, a ramp base, and a ramp pulley;

[0008] The main hook connecting device is installed on the top of the balance beam, the crane main hook hooks the main hook connecting device, the pulley adjusting device is fixed on both sides of the balance beam, and the fixed pulley is installed on the pulley adjusting device;

[0009] The lifting base is welded to both sides of the rotating wheel, the turning lifting is connected to the lifting base, the lifting pulley is connected to the turning lifting, and one end of the wire rope is hung on the fixed pulley, while the other end is hung on the lifting pulley.

[0010] The axis of the fixed pulley is perpendicular to the axis of the lifting pulley, and the center connecting line of the lifting pulley is offset in the horizontal direction from the combined center of gravity formed by the turning lifting, the lifting base, and the rotating wheel.

[0011] Furthermore: the pulley adjustment device includes a sliding plate, a nut bracket, and an adjusting screw;

[0012] The nut bracket is welded to the balance beam, the nut bracket is threadedly connected to the adjusting screw, the end of the adjusting screw is welded to the slide plate, and the fixed pulley is installed on the slide plate.

[0013] Furthermore, the wire rope is a seamless ring-shaped wire rope.

[0014] Furthermore, the minimum distance between the steel wire rope and the turning hoist is greater than 60mm.

[0015] Furthermore, the distance between the wheel and the ground and the balance beam is not less than 300mm.

[0016] Furthermore, the offset is 100-150mm.

[0017] The beneficial effects of this utility model are as follows:

[0018] 1. This utility model is equipped with a pulley adjustment device, which can conveniently and quickly adjust the distance between the pulleys and indirectly adjust the distance between the wire ropes on both sides, so as to adapt to the lifting and turning of different sized wheels.

[0019] 2. This utility model is applicable to the turning and lifting of various sizes of swivels, without the need to design special equipment for specific swivels, which greatly reduces production costs and production cycle and improves production efficiency.

[0020] 3. This utility model uses a seamless ring steel wire rope, which reduces the risk of steel wire rope breakage, improves the safety of operation, reduces the risk of component failure during the turning process, and makes the aerial operation of heavy-duty, large-scale rotating wheels more reliable.

[0021] 4. This utility model can reduce the risk of processing damage, avoid direct contact between the rotor and the ground or equipment, reduce the probability of surface bumps and blade deformation, and ensure the dimensional accuracy and appearance quality of the rotor. Attached Figure Description

[0022] Figure 1 This is a general structural diagram of the present invention;

[0023] Figure 2 for Figure 1K-direction view;

[0024] Figure 3 This is a schematic diagram of the pulley adjustment device of this utility model.

[0025] In the diagram: 1-Main hook connecting device, 2-Balance lifting beam, 3-Fixed pulley, 4-Pulley adjusting device, 5-Wire rope, 6-Turning lifting ramp, 7-Lifting ramp base, 8-Lifting ramp pulley, 9-Slide plate, 10-Nut bracket, 11-Adjusting screw, 12-Rotating wheel. Detailed Implementation

[0026] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0027] The terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0028] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] The preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0030] Example: An adjustable spacing type turnaround device according to this example includes a main hook connecting device 1, a balance lifting beam 2, a fixed pulley 3, a pulley adjusting device 4, a wire rope 5, a turnaround lifting sling 6, a lifting sling base 7, and a lifting sling pulley 8;

[0031] The main hook connecting device 1 is connected to the top of the balance beam 2 by a pin. The crane main hook hooks the main hook connecting device 1. The pulley adjustment device 4 is fixed on both sides of the balance beam 2. The fixed pulley 3 is installed on the pulley adjustment device 4 and its position is adjusted by the pulley adjustment device 4.

[0032] The lifting base 7 is welded to both sides of the turntable 12. The turning lifting 6 is connected to the lifting base 7 by bolts. The lifting pulley 8 is connected to the bearing of the turning lifting 6. One end of the wire rope 5 is hung on the fixed pulley 3, and the other end is hung on the lifting pulley 8.

[0033] The axis of the fixed pulley 3 is perpendicular to the axis of the lifting pulley 8, and the center connecting line of the lifting pulley 8 is offset in the horizontal direction from the combined center of gravity formed by the turning lifting 6, the lifting base 7, and the rotating wheel 12.

[0034] More specifically: the pulley adjustment device 4 includes a sliding plate 9, a nut bracket 10, and an adjusting screw 11;

[0035] The nut bracket 10 is welded to the balance beam 2. The nut bracket 10 is threadedly connected to the adjusting screw 11. The end of the adjusting screw 11 is welded to the slide plate 9. The fixed pulley 3 is installed on the slide plate 9.

[0036] More specifically: the wire rope 5 is a jointless annular wire rope.

[0037] More specifically: the wire rope 5 is kept vertical during use to prevent it from slipping out of the groove of the lifting pulley 8 and causing an accident.

[0038] More specifically: When using this device to lift and turn the wheel 12, the lifting base 7 is attached to the outer curved surface of the lower ring of the wheel 12 and welded together. The bevel is an asymmetrical root-cleaning bevel. After welding, the lifting base 7 on both sides is 180 degrees symmetrical. All welds are tested by PT and UT. The turning lifting 6 is positioned by cross keyway and the lifting base 7 is fixed with bolts.

[0039] Install the lifting pulley 8 so that the center connection line of the two lifting pulleys 8 is offset by 100-150mm in the horizontal direction from the combined center of gravity formed by the turning lifting 6, the lifting base 7, and the rotating wheel 12. Turn over by this eccentric method.

[0040] The main hook connecting device 1 is fixed on the balance lifting beam 2, the pulley adjusting device 4 is welded on the balance lifting beam 2, and the fixed pulley 3 is installed on the pulley adjusting device 4.

[0041] Hook the main hook of the crane onto the main hook connecting device 1 to make the balance beam 2 at a suitable height. Hang one end of the wire rope 5 on the fixed pulley 3 and the other end on the lifting pulley 8. Adjust the position of the fixed pulley 3 through the pulley adjustment device 4 to make the wire rope 5 vertical. It is necessary to ensure that the minimum distance between the wire rope 5 and the lifting lifting 6 during the turning of the wheel 12 is greater than 60mm to ensure safety. Control the length of the wire rope 5 so that the distance between the wheel 12 and the ground and the balance beam 2 during the turning process is not less than 300mm.

[0042] After adjusting the position, the crane's main hook is raised to the highest limit position, and the swivel wheel 12 is flipped over using an eccentric method;

[0043] When changing the rotating wheel 12 for turning over, adjust the adjusting screw 11 to make the fixed pulley 3 into the appropriate position, and repeat the above operation. There is no need to replace the new balance beam 2.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; as long as there is no structural conflict, the features in the specific embodiments disclosed in this application can be combined with each other in any way, and will not cause the substance of the corresponding technical solutions to deviate from the scope of the technical solutions of this utility model.

[0045] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An adjustable-spacing rotary turning device, characterized in that, Includes main hook connecting device (1), balance lifting beam (2), fixed pulley (3), pulley adjustment device (4), wire rope (5), turning lifting sling (6), lifting sling base (7), and lifting sling pulley (8); The main hook connecting device (1) is installed on the top of the balance beam (2), the crane main hook hooks the main hook connecting device (1), the pulley adjustment device (4) is fixed on both sides of the balance beam (2), and the fixed pulley (3) is installed on the pulley adjustment device (4). The hoisting base (7) is welded to both sides of the turntable (12), the turning hoist (6) is connected to the hoisting base (7), the hoisting pulley (8) is connected to the turning hoist (6), one end of the wire rope (5) is hung on the fixed pulley (3), and the other end is hung on the hoisting pulley (8); The axis of the fixed pulley (3) is perpendicular to the axis of the hoisting pulley (8), and the center line of the hoisting pulley (8) and the combined center of gravity formed by the turning hoisting (6), the hoisting base (7), and the rotating wheel (12) are offset in the horizontal direction.

2. The adjustable spacing type rotating wheel turning device according to claim 1, characterized in that, The pulley adjustment device (4) includes a sliding plate (9), a nut bracket (10), and an adjusting screw (11). The nut bracket (10) is welded to the balance beam (2), the nut bracket (10) is threadedly connected to the adjusting screw (11), the end of the adjusting screw (11) is welded to the slide plate (9), and the fixed pulley (3) is installed on the slide plate (9).

3. The adjustable spacing type rotating wheel turning device according to claim 1, characterized in that, The steel wire rope (5) is a jointless annular steel wire rope.

4. The adjustable spacing type rotating wheel turning device according to claim 1, characterized in that, The minimum distance between the steel wire rope (5) and the turning hoist (6) is greater than 60mm.

5. The adjustable spacing type rotating wheel turning device according to claim 1, characterized in that, The distance between the wheel (12) and the ground and the balance beam (2) is not less than 300mm.

6. The adjustable spacing type rotating wheel turning device according to claim 1, characterized in that, The offset is 100-150mm.

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