Axial-flow Kaplan turbine suspension device

Abstract

The utility model provides a suspension device for an axial-flow movable paddle type water turbine, which belongs to the technical field of water turbines, and comprises a bottom frame, stretching structures arranged inside two sides of the bottom frame, extending frames arranged on one sides of the stretching structures, rotating seats arranged at the bottom ends of pulley yokes, and mounting plates fixed at the bottom ends of the rotating seats, and fixing structures are mounted on the outer sides of the mounting discs. According to the utility model, the movable arm is pulled to enable the bracket to hook the edge of the top tray of the water turbine, the fixed pin is inserted into the adjusting groove, the position of the movable arm is fixed, and the positioning screw rod is rotated to enable the pressure plate to press and fix the position of the top tray of the water turbine, so that the size adjustment function of the device is realized, and the device is suitable for water turbine top covers with different sizes; meanwhile, the top cover of the water turbine is fixed in a clamping mode, the damage time of mounting bolts is shortened, and the maintenance efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water turbines, in particular to an axial flow propeller type water turbine suspension device. Background Art

[0002] The axial-flow propeller turbine suspension device is a device specially used for the maintenance of axial-flow propeller turbines. It is responsible for suspending the turbine runner and other related components, greatly improving the efficiency and safety of turbine maintenance.

[0003] After searching, the Chinese patent application number 202022679810.8 discloses a lifting device for repairing axial-flow propeller turbines, wherein the lifting device includes a lifting mechanism, a hand chain hoist and a pier; the lifting mechanism is connected to the main shaft, and is used to raise the main shaft and the runner; the hand chain hoist connects the support cover to the lifting mechanism; and the pier is installed on the top cover. The lifting method is to first lift the turbine as a whole upward and then support the support cover through the pier, and then lower the main shaft and the runner so that a certain distance is maintained between the runner and the support cover to facilitate the subsequent removal of the runner. Compared with the existing lifting method, the hand chain hoist in this application only plays the role of lifting and holding during the lifting process. In this way, compared with the existing method of raising the support cover by raising the hand chain hoist and then removing the runner, there is no need for many people to lift the hand chain hoist, which saves manpower. The time for installing the pier is relatively short compared to the time for pulling the hand chain hoist upward, and the cost is lower, thereby shortening the lifting time;

[0004] The above patent still has the following shortcomings: it is not applicable to axial-flow propeller-type turbines of various sizes. Since the device is used to lift the turbine, bolts are usually used to connect the mounting plate with the turbine top cover to lift the turbine. However, since the mounting plate cannot flexibly adapt to turbine top covers of various sizes, the mounting plate needs to be replaced every time a turbine of a different size is encountered, which greatly increases the complexity and time cost of the work;

[0005] Wire ropes are prone to rust. Due to the high humidity in the environment where the turbine is located, the hoisting wire ropes are prone to rust, which seriously weakens the strength of the wire ropes, directly affects the safety and stability of the hoisting device, and increases the risk of accidents during the hoisting process.

[0006] Therefore, there is an urgent need for an axial flow propeller type water turbine suspension device to solve the above problems. Utility Model Content

[0007] The purpose of the utility model is to address the existing axial-flow propeller-type turbines that are not suitable for various sizes. Since the device is used to lift the turbine, bolts are usually used to connect the mounting plate and the turbine top cover to lift the turbine. However, since the mounting plate cannot flexibly adapt to turbine top covers of various sizes, the mounting plate needs to be replaced every time a turbine of a different size is faced, which greatly increases the complexity of the work and the time cost.

[0008] In order to achieve the above-mentioned invention object, the utility model provides the following technical solutions:

[0009] An axial flow propeller type water turbine suspension device comprises a base frame and further comprises:

[0010] An extension structure is arranged inside both sides of the base frame, and an extension frame is installed on one side of the extension structure;

[0011] A support frame is fixed on the top of the base frame, and a crossbeam is fixed on the top of the support frame, and a movable groove is installed inside the crossbeam;

[0012] An electric hoist is installed at the bottom end of the beam, and a maintenance structure is provided at the bottom end of the electric hoist, and a pulley frame is connected to the bottom end of the electric hoist;

[0013] The rotating seat is installed at the bottom end of the pulley frame, and a mounting plate is fixed at the bottom end of the rotating seat, and a fixing structure is installed on the outer side of the mounting plate.

[0014] As a preferred technical solution of the present application, the fixing structure includes a fixing groove fixed on the top of the mounting plate, a fixing pin inserted in the fixing groove and passing through the adjusting groove, a movable arm sliding in the fixing groove, a positioning screw inserted in the movable arm, a pressure plate installed at the bottom end of the positioning screw, a bracket fixed on one side of the bottom end of the movable arm, and an adjusting groove opened in the movable arm.

[0015] As the preferred technical solution of the present application, the maintenance structure includes an oil-absorbing sponge installed inside the cover, a cover fixed to the bottom end of the electric hoist, cleaning brushes fixed at both ends of the cover, a cover mounted on the outside of the oil filling port, an oil filling port fixed on one side of the cover, and an oil retaining pad fixed at the bottom end of the cover.

[0016] As a preferred technical solution of the present application, the extension structure includes a screw rod inserted inside the extension arm, an extension arm sliding inside the base frame, a hexagonal block fixed on one side of the first bevel gear, a first bevel gear installed on one side of the base frame, and a second bevel gear fixed on one side of the screw rod.

[0017] As a preferred technical solution of the present application, the mounting plate forms a rotating structure between the rotating seat and the pulley frame, and the electric hoist forms a sliding structure between the moving groove.

[0018] As a preferred technical solution of the present application, the positioning screw passes through the movable arm and is connected to the pressure plate, and a rotating structure is formed between the pressure plate and the positioning screw.

[0019] As a preferred technical solution of the present application, a plurality of groups of adjustment grooves are opened inside the movable arm, and the plurality of groups of adjustment grooves are evenly spaced and distributed inside the movable arm.

[0020] As a preferred technical solution of the present application, an external thread is arranged on the outer side wall of the oil filling port, and an internal thread cooperating with the external thread is arranged inside the sealing cap.

[0021] As a preferred technical solution of the present application, an external thread is arranged on the outer side wall of the screw rod, and an internal thread cooperating with the external thread is arranged inside the extension arm.

[0022] As a preferred technical solution of the present application, a rotating structure is formed between the first bevel gear and the base frame, and the hexagonal block extends to the inside of the base frame and is connected to the first bevel gear.

[0023] Compared with the prior art, the utility model has the following beneficial effects:

[0024] In the scheme of this application:

[0025] 1. Pull the moving arm to make the bracket hook the edge of the turbine top plate, insert the fixing pin into the adjusting slot, fix the position of the moving arm, rotate the positioning screw to make the pressure plate press and fix the position of the turbine top plate, thereby realizing the size adjustment function of the device, making the device suitable for turbine top covers of different sizes, saving the time consumed by replacing the installation plate, and fixing the turbine top cover by clamping, reducing the time of damage of the installation bolts, and greatly improving the maintenance efficiency;

[0026] 2. Liquid lubricating oil is injected into the interior of the housing through the oil filling port, so that the oil-absorbing sponge applies the lubricating oil to the surface of the steel cable, and lubricates and maintains the surface of the steel cable, thereby realizing the steel cable maintenance function of the device, facilitating the maintenance of the steel cable, extending the service life of the steel cable, and reducing the occurrence of accidents;

[0027] 3. Twist the hexagonal block with a wrench to drive the screw to rotate, so that the extension arm slides outward along the thread on the surface of the screw, and the position of the extension frame is moved, thereby realizing the function of stabilizing the placement of the device. By increasing the footprint of the device and lowering the center of gravity of the device, the device can be placed stably and is not easy to tip over. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is one of the schematic diagrams of the structure of the utility model;

[0029] Figure 2 This is the second schematic diagram of the structure of the utility model;

[0030] Figure 3 A schematic diagram of a three-dimensional cross-sectional structure of the stretch structure provided in this application;

[0031] Figure 4 A three-dimensional schematic diagram of the fixed structure provided for this application;

[0032] Figure 5 This is a schematic diagram of the three-dimensional cross-sectional structure of the maintenance structure provided in this application.

[0033] Markings in the figure: 1. Base frame; 2. Extension structure; 201. Screw rod; 202. Extension arm; 203. Hexagonal block; 204. First bevel gear; 205. Second bevel gear; 3. Extension frame; 4. Fixed structure; 401. Fixed slot; 402. Fixed pin; 403. Moving arm; 404. Positioning screw; 405. Pressure plate; 406. Bracket; 407. Adjustment slot; 5. Mounting plate; 6. Rotating seat; 7. Pulley frame; 8. Support frame; 9. Maintenance structure; 901. Oil-absorbing sponge; 902. Cover; 903. Cleaning brush; 904. Cover; 905. Oil filling port; 906. Oil retaining pad; 10. Crossbeam; 11. Moving slot; 12. Electric hoist. DETAILED DESCRIPTION

[0034] To make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments.

[0035] like Figure 1-5 As shown, an axial flow propeller type water turbine suspension device proposed in this embodiment includes a base frame 1 and also includes:

[0036] The extension structure 2 is arranged inside the two sides of the base frame 1, and an extension frame 3 is installed on one side of the extension structure 2;

[0037] The support frame 8 is fixed on the top of the base frame 1, and a crossbeam 10 is fixed on the top of the support frame 8, and a movable groove 11 is installed inside the crossbeam 10;

[0038] An electric hoist 12 is installed at the bottom end of the crossbeam 10, and a maintenance structure 9 is provided at the bottom end of the electric hoist 12, and a pulley frame 7 is connected to the bottom end of the electric hoist 12;

[0039] The rotating seat 6 is installed at the bottom end of the pulley frame 7, and a mounting plate 5 is fixed to the bottom end of the rotating seat 6, and a fixing structure 4 is installed on the outer side of the mounting plate 5.

[0040] like Figure 1, Figure 2 and Figure 4 As shown, as a preferred embodiment, on the basis of the above method, further, the fixing structure 4 includes a fixing groove 401 fixed to the top of the mounting plate 5, a fixing pin 402 inserted in the fixing groove 401 and passing through the adjusting groove 407, a moving arm 403 sliding in the fixing groove 401, a positioning screw 404 inserted in the moving arm 403, a pressure plate 405 installed at the bottom end of the positioning screw 404, a bracket 406 fixed to one side of the bottom end of the moving arm 403, and an adjusting groove 407 opened in the moving arm 403, the positioning screw 404 passes through the moving arm 403 and is connected to the pressure plate 405, and the pressure plate 405 and the positioning screw 404 constitute a rotating structure, and several groups of adjustment grooves 407 are opened inside the movable arm 403, and the several groups of adjustment grooves 407 are evenly spaced inside the movable arm 403. By placing the mounting plate 5 on the top of the turbine top plate, and then pulling the movable arm 403 to slide inside the fixed groove 401, the bracket 406 hooks the edge of the turbine top plate, and the positioning screw 404 is rotated to make the pressure plate 405 press the turbine top plate to fix it inside the bracket 406, the turbine top plate is quickly connected and fixed to the device, and the fixing pin 402 is inserted into the adjusting groove 407 through the fixing groove 401 to fix the position of the movable arm 403.

[0041] like Figure 1 , Figure 2 and Figure 5 As shown, as a preferred embodiment, on the basis of the above method, further, the maintenance structure 9 includes an oil-absorbing sponge 901 installed inside the cover 902, the cover 902 fixed to the bottom end of the electric hoist 12, a cleaning brush 903 fixed to both ends of the cover 902, a cover 904 sleeved on the outside of the oil filling port 905, and the oil filling port 905 fixed on one side of the cover 902, and an oil retaining pad 906 fixed to the bottom end of the cover 902. The outer wall of the oil filling port 905 is provided with an external thread, and the cover 904 is provided with an external thread. An internal thread that cooperates with the external thread is provided inside. The oil filling port 905 is opened by rotating the cover 904, and then liquid lubricating oil is injected into the interior of the cover 902 through the oil filling port 905. At the same time, the oil-absorbing sponge 901 stores the lubricating oil. When the electric hoist 12 drives the steel cable to move inside the cover 902, the oil-blocking pad 906 clears the floating dust and foreign matter on the surface of the steel cable, and then the steel cable contacts the oil-absorbing sponge 901, so that the lubricating oil is smeared on the surface of the steel cable and penetrates into the gap to lubricate the surface of the steel cable.

[0042] like Figure 1 , Figure 2 and Figure 3As shown, as a preferred embodiment, on the basis of the above-mentioned method, further, the extension structure 2 includes a screw rod 201 inserted in the extension arm 202, an extension arm 202 sliding in the base frame 1, a hexagonal block 203 fixed on one side of the first bevel gear 204, a first bevel gear 204 installed on one side of the base frame 1, and a second bevel gear 205 fixed on one side of the screw rod 201, an external thread is provided on the outer side wall of the screw rod 201, and an internal thread matching the external thread is provided inside the extension arm 202, a rotating structure is formed between the first bevel gear 204 and the base frame 1, the hexagonal block 203 extends to the inside of the base frame 1 and is connected to the first bevel gear 204, and a wrench is used to twist the hexagonal block 203. Block 203 causes the hexagonal block 203 to drive the first bevel gear 204 to rotate, and then the first bevel gear 204 drives the screw rod 201 to rotate through the second bevel gear 205, so that the extension arm 202 slides outward along the thread on the surface of the screw rod 201, moves the position of the extension frame 3, and expands the footprint of the device. By starting the electric hoist 12 to move inside the moving groove 11, the mounting plate 5 is moved to the top of the turbine top plate, and then the mounting plate 5 is connected and fixed to the turbine top plate using the fixing structure 4. The electric hoist 12 is started to tighten the steel cable to drive the turbine top plate to move upward, and the axial flow propeller unit turbine is suspended. The rotating seat 6 is used to facilitate the rotation of the position of the axial flow propeller unit turbine during the suspension process.

[0043] The mounting plate 5 forms a rotating structure with the rotating seat 6 and the pulley frame 7 , and the electric hoist 12 and the moving groove 11 form a sliding structure.

[0044] Specifically, when the axial flow propeller turbine suspension device is in use: by placing the device in the use position, using the extension structure 2 to expand the footprint of the device, so that the device is placed firmly and not easy to tilt and collapse, using a wrench to twist the hexagonal block 203, the hexagonal block 203 drives the first bevel gear 204 to rotate, and then the first bevel gear 204 drives the screw rod 201 to rotate through the second bevel gear 205, so that the extension arm 202 slides outward along the thread on the surface of the screw rod 201, the position of the mobile extension frame 3 is expanded, and the footprint of the device is expanded, and the electric hoist 12 is started to move inside the moving groove 11, and the mounting plate 5 is moved to the top of the turbine top plate, and then the fixing structure 4 is used to connect and fix the mounting plate 5 to the turbine top plate, and the electric hoist 12 is started to tighten the steel cable to drive the turbine top plate to move upward, and the axial flow propeller unit turbine is suspended, and the rotating seat 6 is used to facilitate the rotation of the position of the axial flow propeller unit turbine during the suspension process.

[0045] Specifically, when the axial flow propeller turbine suspension device is in use: by placing the mounting plate 5 on the top of the turbine top plate, then pulling the movable arm 403 to slide inside the fixing groove 401, so that the bracket 406 hooks the edge of the turbine top plate, rotating the positioning screw 404 so that the pressure plate 405 presses and fixes the turbine top plate inside the bracket 406, quickly connecting and fixing the turbine top plate to the device, inserting the fixing pin 402 through the fixing groove 401 into the adjusting groove 407, and fixing the position of the movable arm 403.

[0046] Specifically, when the axial flow propeller turbine suspension device is in use: the oil filling port 905 is opened by rotating the cover 904, and then liquid lubricating oil is injected into the interior of the cover 902 through the oil filling port 905, and at the same time the oil-absorbing sponge 901 stores the lubricating oil. When the electric hoist 12 drives the steel cable to move inside the cover 902, the oil-blocking pad 906 clears the floating dust and foreign matter on the surface of the steel cable, and then the steel cable contacts the oil-absorbing sponge 901, so that the lubricating oil is smeared on the surface of the steel cable and penetrates into the gap to lubricate the surface of the steel cable.

[0047] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. Although the present invention has been described in detail with reference to the above embodiments, the present invention is not limited to the above specific implementation methods. Therefore, any modification or equivalent replacement of the present invention; and all technical solutions and improvements thereof that do not depart from the spirit and scope of the invention are included in the scope of the claims of the present invention.

Claims

1. An axial flow propeller turbine suspension device, comprising a base frame (1), characterized in that: Also includes, An extension structure (2) is arranged inside both sides of the base frame (1), and an extension frame (3) is installed on one side of the extension structure (2); A support frame (8) is fixed on the top of the base frame (1), and a crossbeam (10) is fixed on the top of the support frame (8), and a movable groove (11) is installed inside the crossbeam (10); An electric hoist (12) is installed at the bottom end of the crossbeam (10), and a maintenance structure (9) is provided at the bottom end of the electric hoist (12), and a pulley frame (7) is connected to the bottom end of the electric hoist (12); The rotating seat (6) is installed at the bottom end of the pulley frame (7), and a mounting plate (5) is fixed at the bottom end of the rotating seat (6), and a fixing structure (4) is installed on the outer side of the mounting plate (5).

2. The suspension device for an axial-flow propeller-type water turbine according to claim 1, characterized in that: The fixing structure (4) comprises a fixing groove (401) fixed to the top of the mounting plate (5), a fixing pin (402) inserted in the fixing groove (401) and passing through the adjusting groove (407), a moving arm (403) sliding in the fixing groove (401), a positioning screw (404) inserted in the moving arm (403), a pressure plate (405) installed at the bottom end of the positioning screw (404), a bracket (406) fixed to one side of the bottom end of the moving arm (403), and an adjusting groove (407) provided in the moving arm (403).

3. The suspension device for an axial-flow propeller-type water turbine according to claim 1, characterized in that: The maintenance structure (9) comprises an oil-absorbing sponge (901) installed inside a cover shell (902), a cover shell (902) fixed to the bottom end of the electric hoist (12), cleaning brushes (903) fixed to both ends inside the cover shell (902), a cover (904) sleeved on the outside of an oil filling port (905), an oil filling port (905) fixed to one side of the cover shell (902), and an oil retaining pad (906) fixed to the bottom end inside the cover shell (902).

4. The suspension device for an axial-flow propeller-type water turbine according to claim 1, characterized in that: The extension structure (2) comprises a screw rod (201) inserted into an extension arm (202), an extension arm (202) sliding inside a base frame (1), a hexagonal block (203) fixed to one side of a first bevel gear (204), a first bevel gear (204) mounted on one side of an interior of the base frame (1), and a second bevel gear (205) fixed to one side of the screw rod (201).

5. The suspension device for an axial-flow propeller-type water turbine according to claim 1, characterized in that: The mounting plate (5) forms a rotating structure with the rotating seat (6) and the pulley frame (7), and the electric hoist (12) forms a sliding structure with the movable groove (11).

6. The suspension device for an axial-flow propeller-type water turbine according to claim 2, characterized in that: The positioning screw (404) passes through the movable arm (403) and is connected to the pressure plate (405), and a rotating structure is formed between the pressure plate (405) and the positioning screw (404).

7. The suspension device for an axial-flow propeller-type water turbine according to claim 2, characterized in that: The adjustment grooves (407) are provided in a plurality of groups inside the movable arm (403), and the plurality of groups of adjustment grooves (407) are distributed at equal intervals inside the movable arm (403).

8. The suspension device for an axial-flow propeller-type water turbine according to claim 3, characterized in that: The outer wall of the oil filling port (905) is provided with an external thread, and the interior of the sealing cover (904) is provided with an internal thread that cooperates with the external thread.

9. The suspension device for an axial-flow propeller-type water turbine according to claim 4, characterized in that: An external thread is provided on the outer wall of the screw rod (201), and an internal thread matching the external thread is provided inside the extension arm (202).

10. The suspension device for an axial-flow propeller-type water turbine according to claim 4, characterized in that: A rotating structure is formed between the first bevel gear (204) and the base frame (1), and the hexagonal block (203) extends into the interior of the base frame (1) and is connected to the first bevel gear (204).

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