A top cover hanger for flow-through parts of a water turbine

Abstract

The utility model discloses a top cover hoist of a flow-through component of a water turbine, comprising a top cover body, wherein the four corners of the top of the top cover body are fixedly connected with hinges, the hinges are internally rotatably connected with hooks, a hoisting piece is arranged on the top of the top cover body, and a connecting block is fixedly connected to the bottom of the hoisting piece. The utility model can suspend the four corners of the top cover body through the cooperation of the top cover body, the hinges, the hooks, the hoisting piece, the connecting block, the connecting ring, the supporting piece and the sling, so that the top cover body can be evenly lifted by the hoisting piece, at this time, through the cooperation of the bearing plate, the reinforcing ribs, the mounting piece, the reinforcing plate, the hinge groove and the wire rope, the tensile weight of the bearing sling can be shared, the top cover body can be lifted in double layers, and when the outer sling is unhooked, the wire rope can bear the weight of one side of the top cover body, thereby playing a role of a layer of insurance.

Description

Technical Field

[0001] The utility model relates to the technical field of top covers of water turbine flow components, in particular to a top cover hanging device of water turbine flow components. Background Art

[0002] The top cover of the turbine flow component is located at the top of the turbine. Its main functions are as follows: 1. By forming a flow channel together with the bottom ring, the top cover can prevent water from overflowing from the upper part of the unit and ensure that the water flows in the designed direction; 2. The top cover not only provides support for the flow channel, but also supports the guide vanes and transmission mechanism. The guide vanes are devices that control the flow of water into the runner, while the transmission mechanism converts the energy of the water flow into mechanical energy for the rotation of the runner; 3. The top cover also supports some auxiliary devices, such as guide bearings and other auxiliary equipment. The guide bearing is a device that guides and supports the rotation of the runner. Other auxiliary equipment may include lubrication systems, cooling systems, etc.

[0003] At present, when the existing lifting equipment is in use, a sling with a hook is mostly used to hook and scrape the lifting ears on the top cover. There are usually four lifting ears on the top cover, and the four lifting ears are evenly distributed at four corners. At the moment of lifting, any uneven force at any point of the four hooks will cause the top cover to tip over. There is a risk of unhooking due to the shaking of the sling. In addition, there is also a risk of falling off due to the shaking of the operation. Utility Model Content

[0004] In order to solve the problems raised in the above-mentioned background technology, the purpose of the utility model is to provide a top cover lifting device for the flow-through components of a turbine, which has the advantages of being able to enhance the lifting effect of the top cover, improve the stability during lifting, and prevent it from falling off. It solves the problem that at the moment of lifting, any point of uneven force on the four hooks will cause the top cover to tip over, and there is a risk of unhooking due to the shaking of the slings. In addition, there is also a risk of falling off due to the shaking of the operation.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a top cover hanger of a flow-through component of a water turbine, comprising a top cover body, the four corners of the top of the top cover body are fixedly connected with hinges, the hinges are rotatably connected with a hook inside, a hanging piece is arranged on the top of the top cover body, a connecting block is fixedly connected with the bottom of the hanging piece, a connecting ring is fixedly connected with four supporting pieces on the surface of the connecting ring, a sling is hingedly connected with the other end of the supporting piece, a bearing plate is fixedly connected with the bottom of the connecting ring, a reinforcing rib is fixedly connected with the center of the hanging piece, a mounting piece is provided at the bottom of the reinforcing rib extending to the bottom of the bearing plate, a reinforcing plate is fixedly connected with the bottom of the mounting piece, four hinge grooves are opened on the surface of the reinforcing plate, and the four hinge grooves are evenly arranged in a ring shape, a steel wire rope is rotatably connected with the inside of the hinge groove, and the bottom of the steel wire rope is hinged to the top cover body through a hanging ear.

[0006] As a preferred embodiment of the present invention, the four support members are in a one-to-one correspondence with the four hinged members, and the four steel wire ropes are in a one-to-one correspondence with the four slings.

[0007] As a preferred embodiment of the utility model, an arc block is fixedly connected between every two of the support members, and the arc block is fixedly connected to the carrying plate.

[0008] As a preferred embodiment of the present invention, the top and bottom of the reinforcing rib are fixedly connected to limit blocks, and the two limit blocks are fixedly connected to the hanging piece and the mounting piece respectively.

[0009] As a preferred embodiment of the utility model, a triangular reinforcement block is fixedly connected to the top of the reinforcement plate, and the triangular reinforcement block is fixedly connected to the mounting piece.

[0010] As a preferred embodiment of the present invention, the hook is a hook with a lock, and the hook is in a closed state when used in conjunction with the sling.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] 1. The utility model can hang the four corners of the top cover body through the cooperation of the top cover body, hinges, hooks, lifting parts, connecting blocks, connecting rings, supporting parts and slings, so that the top cover body can be lifted by the lifting parts with uniform force. At this time, through the cooperation of the load-bearing plate, reinforcing ribs, mounting parts, reinforcing plates, hinged grooves and wire ropes, the tensile weight of the load-bearing slings can be shared, and the top cover body can be lifted in double layers. When the outer sling is unhooked, the wire rope can bear the weight of one side of the top cover body, thereby playing a role of a layer of insurance.

[0013] 2. The utility model can keep the force on the top of the top cover body balanced by arranging four support members in a one-to-one correspondence with four hinged members, and four steel wire ropes in a one-to-one correspondence with four slings, thereby greatly improving safety and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a top perspective schematic diagram of the cooperation between the lifting device and the carrying plate of the utility model;

[0016] Figure 3 It is a bottom-up stereoscopic schematic diagram of the lifting component and the carrying plate of the utility model in cooperation with each other;

[0017] Figure 4 It is a top view schematic diagram of the reinforcing rib of the utility model;

[0018] Figure 5 This is a schematic diagram of the use of the reinforcing rib and the limit block in conjunction with the utility model.

[0019] In the figure: 1. Top cover body; 2. Articulated part; 3. Hook; 4. Lifting part; 5. Connecting block; 6. Connecting ring; 7. Support part; 8. Lifting rope; 9. Loading plate; 10. Reinforcing rib; 11. Mounting part; 12. Reinforcing plate; 13. Articulated groove; 14. Wire rope; 15. Arc block; 16. Limiting block; 17. Triangular reinforcing block. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] like Figures 1 to 5As shown, the utility model provides a top cover hanging device for a flow-through component of a water turbine, comprising a top cover body 1, wherein the four corners of the top of the top cover body 1 are fixedly connected with hinges 2, and the hinges 2 are internally rotatably connected with a hook 3, a hanging member 4 is arranged on the top of the top cover body 1, a connecting block 5 is fixedly connected to the bottom of the hanging member 4, a connecting ring 6 is fixedly connected to the bottom of the connecting block 5, four supporting members 7 are fixedly connected to the surface of the connecting ring 6, a sling 8 is hingedly connected to the other end of the supporting member 7, a bearing plate 9 is fixedly connected to the bottom of the connecting ring 6, a reinforcing rib 10 is fixedly connected to the center of the hanging member 4, a mounting member 11 is arranged at the bottom of the reinforcing rib 10 extending to the bottom of the bearing plate 9, a reinforcing plate 12 is fixedly connected to the bottom of the mounting member 11, four hinge grooves 13 are opened on the surface of the reinforcing plate 12, and the four hinge grooves 13 are evenly arranged in a ring shape, a steel wire rope 14 is rotatably connected to the inside of the hinge groove 13, and the bottom of the steel wire rope (14) is hinged to the top cover body 1 through a hanging ear.

[0022] refer to Figure 1 The four supporting members 7 are in a one-to-one correspondence with the four hinged members 2 , and the four steel wire ropes 14 are in a one-to-one correspondence with the four slings 8 .

[0023] As a technical optimization scheme of the utility model, by arranging four support members 7 in a one-to-one correspondence with four hinged members 2, and four steel wire ropes 14 in a one-to-one correspondence with four slings 8, the force on the top of the top cover body 1 can be kept balanced, thereby greatly improving safety and reliability.

[0024] refer to Figure 3 and Figure 4 An arc block 15 is fixedly connected between every two support members 7 , and the arc block 15 is fixedly connected to the carrying plate 9 .

[0025] As a technical optimization solution of the present invention, the arc block 15 is provided to prevent the support member 7 from being deflected when subjected to force, thereby improving the stability of the support member 7 when bearing loads.

[0026] refer to Figure 3 and Figure 5 The top and bottom of the reinforcing rib 10 are fixedly connected to the limiting blocks 16, and the two limiting blocks 16 are fixedly connected to the hanging member 4 and the mounting member 11 respectively.

[0027] As a technical optimization solution of the present invention, the setting of the limit block 16 can limit the up and down movement trajectory of the reinforcing rib 10, thereby preventing the reinforcing rib 10 from being detached during use.

[0028] refer to Figure 3 A triangular reinforcement block 17 is fixedly connected to the top of the reinforcement plate 12 , and the triangular reinforcement block 17 is fixedly connected to the mounting member 11 .

[0029] As a technical optimization solution of the present invention, the provision of the triangular reinforcement block 17 can provide support force for the reinforcement plate 12, thereby increasing its load capacity.

[0030] refer to Figure 1 The hook 3 is a hook with a lock, and the hook 3 is in a closed state when used in conjunction with the sling 8.

[0031] As a technical optimization solution of the present invention, by adopting the setting of a hook with a lock on the hook 3, the possibility of the sling 8 being unhooked due to shaking can be reduced, thereby further improving the stability during lifting.

[0032] The working principle and use process of the utility model are as follows: when the hoist is used to hoist the top cover of the flow-through component of the turbine, the hoisting member 4 is first installed to the output end of the external hoist, and then the hoist is lowered to a suitable height, and then the locks of the four hooks 3 are opened respectively, and the four slings 8 are respectively put on the hooks 3, and then the locks on the hooks 3 are closed, and then the four steel wire ropes 14 are respectively installed at the four hanging ears on the top of the top cover body 1, and then the hoist is started to rise evenly, at this time, the hoisting member 4 drives the connecting block 5 and the connecting block 5 to move upward, and the connecting block 5 is lifted and lowered. The ring 6 and the bearing plate 9 rise evenly, so that the support member 7 drives the sling 8 to move upward to a stretched state, and the reinforcing plate 12 drives the wire rope 14 to rise to a stretched state. At this time, the sling 8 can lift the top cover body 1 evenly, and the wire rope 14 can share the tensile weight of the bearing sling 8, and perform double-layer lifting on the top cover body 1. If the outer sling 8 is unhooked, the wire rope 14 can bear the weight of the top cover body 1, thereby playing a role of a layer of insurance, thereby greatly improving the safety and reliability of the sling when in use.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0034] 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 top cover hanger for a flow-through component of a water turbine, comprising a top cover body (1), characterized in that: The four corners of the top of the top cover body (1) are fixedly connected to hinges (2), the hinges (2) are rotatably connected to hooks (3) inside, a hanging piece (4) is arranged on the top of the top cover body (1), a connecting block (5) is fixedly connected to the bottom of the hanging piece (4), a connecting ring (6) is fixedly connected to the bottom of the connecting block (5), four supporting pieces (7) are fixedly connected to the surface of the connecting ring (6), the other end of the supporting piece (7) is hinged to a sling (8), and the bottom of the connecting ring (6) is fixedly connected to a carrying plate (9), a reinforcing rib (10) is fixedly connected at the center of the hanging part (4), the bottom of the reinforcing rib (10) extends to the bottom of the bearing plate (9) and is provided with a mounting part (11), the bottom of the mounting part (11) is fixedly connected to a reinforcing plate (12), the surface of the reinforcing plate (12) is provided with four hinge grooves (13), and the four hinge grooves (13) are evenly arranged in a ring shape, the inside of the hinge groove (13) is rotatably connected to a steel wire rope (14), and the bottom of the steel wire rope (14) is hinged to the top cover body (1) through a hanging ear.

2. The top cover hanger of a turbine flow component according to claim 1, characterized in that: The four support members (7) are in a one-to-one correspondence with the four hinged members (2), respectively, and the four steel wire ropes (14) are in a one-to-one correspondence with the four slings (8).

3. The top cover hanger of a turbine flow component according to claim 1, characterized in that: An arc block (15) is fixedly connected between every two of the support members (7), and the arc block (15) is fixedly connected to the carrying plate (9).

4. The top cover hanger of a turbine flow component according to claim 1, characterized in that: The top and bottom of the reinforcing rib (10) are both fixedly connected to the limiting blocks (16), and the two limiting blocks (16) are respectively fixedly connected to the hanging component (4) and the mounting component (11).

5. The top cover hanger of a water turbine flow component according to claim 1, characterized in that: A triangular reinforcement block (17) is fixedly connected to the top of the reinforcement plate (12), and the triangular reinforcement block (17) is fixedly connected to the mounting piece (11).

6. The top cover hanger of a turbine flow component according to claim 1, characterized in that: The hook (3) is a hook with a lock, and the hook (3) is in a closed state when used in conjunction with the sling (8).

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