Novel water turbine working wheel with protection mechanism

Abstract

The utility model discloses a novel water turbine working wheel with a protection mechanism, which relates to the technical field of water turbines and comprises a shell, a mounting shaft is rotatably mounted in the middle of the shell, a working wheel body is fixedly mounted on the outer side of the mounting shaft, a driven belt wheel is fixedly connected to the rear end of the mounting shaft, and a telescopic frame is fixedly connected to the rear side of the shell. The movable end of the telescopic frame is fixedly connected with a motor, the output end of the motor is fixedly connected with a driving belt wheel, the driving belt wheel is connected with a driven belt wheel through a belt, and a telescopic electric cylinder is installed on the front side of the driving belt wheel. The driving belt wheel drives the driven belt wheel to rotate through the belt, the rotating driven belt wheel drives the mounting shaft to rotate, then the working wheel body has a certain initial speed, impact on a water bucket on the working wheel body is reduced, the working wheel body is protected, and the service life of the working wheel body is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to water turbine technical field, concretely is a novel water turbine working wheel with protection mechanism. BACKGROUND

[0002] Bucket type water turbine, also called cutting type water turbine, high-speed free jet from the nozzle vertically impacts the runner blade along the circumferential tangent direction. This water turbine is suitable for high water head, small flow hydropower station, especially when the water head exceeds 400m, due to the limitation of structural strength and cavitation, etc. Mixed flow type water turbine is not very suitable, then the bucket type water turbine is often used. The application water head of large bucket type water turbine is about 300~1700m, and the application water head of small bucket type water turbine is about 40~250m.

[0003] When the bucket type water turbine starts, the water flow directly impacts the water bucket of the water turbine, because the working wheel is in a static state at the beginning, therefore, the instantaneous impact force received by the water bucket is large, which can easily cause damage to the water bucket and affect the service life of the water bucket.

[0004] In order to solve the above problems, we make improvements, and propose a novel water turbine working wheel with protection mechanism. CONTENT OF THE UTILITY MODEL

[0005] In order to solve the above technical problems, the utility model provides the following technical scheme:

[0006] The utility model provides a novel water turbine working wheel with protection mechanism, including the casing, the left end of casing is provided with the water inlet, the middle part of casing is rotatably installed with the mounting shaft, the outside of mounting shaft is fixedly installed with the working wheel body, the rear end of mounting shaft is fixedly connected with driven pulley, the rear side of casing is fixedly connected with telescopic support, the movable end of telescopic support is fixedly connected with motor, the output of motor is fixedly connected with driving pulley, and driving pulley is connected with driven pulley through belt, the front side of driving pulley is installed with telescopic electric cylinder, the outside of driving pulley and driven pulley is provided with the blocking piece.

[0007] As a preferred technical scheme of the utility model, the rear end of the casing is fixedly connected with the slide rail, the inside of the slide rail is slidably connected with the connecting block, and the connecting block is fixedly connected to the front side of the driving pulley, and the output end of the telescopic electric cylinder is fixedly connected with the connecting block.

[0008] As a preferred technical scheme of the utility model, the blocking piece includes the mounting rod, the end of the mounting rod is fixedly connected with the limiting block through the screw, and the limiting block is arranged on the side of the driving pulley or the driven pulley.

[0009] As a preferred technical scheme of the utility model, one side of the limiting block is fixedly connected with an insertion rod, an insertion groove is arranged at the end of the mounting rod, and the insertion rod is arranged in the insertion groove.

[0010] As a preferred technical scheme of the utility model, the top end of the shell is fixedly connected with a water tank, a water pump is fixedly installed in the water tank, the output end of the water pump is fixedly connected with a water outlet pipe, and the water outlet pipe extends to the inner top of the shell.

[0011] As a preferred technical scheme of the utility model, the front and rear sides of the mounting shaft are both rotatably installed with shaft seats, and the shaft seats are fixedly connected to the outer side of the shell.

[0012] The utility model discloses beneficial effects are:

[0013] 1. The utility model discloses when the water turbine starts, the motor works and drives the driving pulley to rotate, the driving pulley rotates the driven pulley through the belt, and the driven pulley drives the mounting shaft to rotate, and then the working wheel body has certain initial speed, reduces the impact that the water bucket on the working wheel body receives, protects the working wheel body, prolongs its service life.

[0014] 2. The utility model discloses that the water pump sends the cleaning fluid in the water tank into the shell through the water outlet pipe, then flushes the water bucket, and the motor, the driving pulley, the belt and the driven pulley make the working wheel body rotate, clean all water buckets on the working wheel body, keep the surface of the water bucket clean, slow down oxidation and prolong service life. DRAWINGS

[0015] The drawings are used to provide further understanding of the utility model, and constitute a part of the specification, are used to explain the utility model together with the embodiments of the utility model, and do not constitute the limitation to the utility model. In the drawings:

[0016] Figure 1 It is the front view of the utility model;

[0017] Figure 2 It is the sectional view of the utility model;

[0018] Figure 3 It is the rear view of the utility model;

[0019] Figure 4 It is the blocking piece schematic view of the utility model;

[0020] In the diagram: 1. Housing; 2. Inlet; 3. Water tank; 4. Mounting shaft; 5. Working wheel body; 6. Water pump; 7. Outlet pipe; 8. Shaft seat; 9. Blocking component; 10. Telescopic frame; 11. Motor; 12. Drive pulley; 13. Connecting block; 14. Slide rail; 15. Telescopic electric cylinder; 16. Driven pulley; 17. Mounting rod; 18. Limiting block; 19. Screw; 20. Insertion rod; 21. Slot. Detailed Implementation

[0021] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0022] Example: Figures 1-4 As shown, a novel water turbine working wheel with a protective mechanism includes a housing 1. A water inlet 2 is provided at the left end of the housing 1. An installation shaft 4 is rotatably mounted in the middle of the housing 1. Shaft seats 8 are rotatably mounted on both the front and rear sides of the installation shaft 4, and the shaft seats 8 are fixedly connected to the outside of the housing 1. The working wheel body 5 is fixedly mounted on the outside of the installation shaft 4. A driven pulley 16 is fixedly connected to the rear end of the installation shaft 4. A telescopic frame 10 is fixedly connected to the rear side of the housing 1. An electric motor 11 is fixedly connected to the movable end of the telescopic frame 10. A driving pulley 12 is fixedly connected to the output end of the electric motor 11, and the driving pulley 12 is connected to the driven pulley 16 through a belt. A telescopic electric cylinder 15 is installed on the front side of the driving pulley 12. A blocking member 9 is provided on the outside of both the driving pulley 12 and the driven pulley 16.

[0023] When the turbine is started, the motor 11 drives the drive pulley 12 to rotate. The drive pulley 12 causes the driven pulley 16 to rotate via a belt. The rotating driven pulley 16 drives the mounting shaft 4 to rotate, thereby giving the working wheel body 5 a certain initial speed and reducing the impact on the water buckets on the working wheel body 5. After the turbine is running normally, the motor 11 stops working, and the telescopic electric cylinder 15 works, shortening the distance between the drive pulley 12 and the driven pulley 16, loosening the belt, preventing the motor 11 from rotating, and reducing energy transmission loss.

[0024] Specifically, such as Figure 3 As shown, a slide rail 14 is fixedly connected to the rear end of the housing 1. A connecting block 13 is slidably connected inside the slide rail 14 and is fixedly connected to the front side of the drive pulley 12. The output end of the telescopic electric cylinder 15 is fixedly connected to the connecting block 13. When the drive pulley 12 moves, the connecting block 13 slides inside the slide rail 14 to maintain the stability of the drive pulley 12.

[0025] Specifically, such as Figure 4As shown, the blocking piece 9 includes a mounting rod 17, the end of the mounting rod 17 is fixedly connected with a limiting block 18 through a screw 19, and the limiting block 18 is arranged at the side of the driving pulley 12 or the driven pulley 16, one side of the limiting block 18 is fixedly connected with an insertion rod 20, the end of the mounting rod 17 is provided with a slot 21, and the insertion rod 20 is arranged in the slot 21, the blocking piece 9 is mounted to the outside of the driving pulley 12 or the driven pulley 16 to avoid the belt from falling off the driving pulley 12 or the driven pulley 16, the limiting block 18 is mounted to the mounting rod 17 through the screw 19, and then the limiting block 18 can be disassembled, facilitating the disassembly and assembly of the belt, and the insertion rod 20 and the slot 21 cooperate to fix the state of the limiting block 18 on the mounting rod 17.

[0026] Specifically, as shown in Figure 1 and Figure 2 As shown, the top end of the shell 1 is fixedly connected with a water tank 3, the inside of the water tank 3 is fixedly mounted with a water pump 6, the output end of the water pump 6 is fixedly connected with a water outlet pipe 7, and the water outlet pipe 7 extends to the inner top of the shell 1, the water tank 3 is filled with cleaning liquid, the water pump 6 sends the cleaning liquid in the water tank 3 into the shell 1 through the water outlet pipe 7, and then the water bucket is washed, and the motor 11, the driving pulley 12, the belt and the driven pulley 16 are cooperated to rotate the working wheel body 5, so that all the water buckets on the working wheel body 5 are cleaned, the surface of the water bucket is kept clean, the oxidation is slowed down, and the service life is prolonged.

[0027] Working principle: the water pump 6 sends the cleaning liquid in the water tank 3 into the shell 1 through the water outlet pipe 7, and then the water bucket is washed, and the motor 11, the driving pulley 12, the belt and the driven pulley 16 are cooperated to rotate the working wheel body 5, so that all the water buckets on the working wheel body 5 are cleaned, the surface of the water bucket is kept clean;

[0028] When the water turbine is started, the motor 11 works to drive the driving pulley 12 to rotate, the driving pulley 12 drives the driven pulley 16 to rotate through the belt, the rotating driven pulley 16 drives the mounting shaft 4 to rotate, and then the working wheel body 5 has a certain initial speed, the water flow enters the shell 1 from the water inlet 2 and acts on the working wheel body 5 to generate electricity, after the water turbine works normally, the motor 11 stops working, the telescopic cylinder 15 works to shorten the distance between the driving pulley 12 and the driven pulley 16, so that the belt is relaxed, the driving pulley 12 is prevented from rotating to drive the motor 11, and the energy transmission loss is reduced.

[0029] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application have been described in detail, for the skilled in the art, it still can be modified, or for the equivalent replacement of part of the technical features of the technical solutions recorded in the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, shall be included within the scope of the present application.

Claims

1. A novel turbine impeller with a protective mechanism, comprising a housing (1), characterized in that, A water inlet (2) is provided at the left end of the housing (1). An installation shaft (4) is rotatably installed in the middle of the housing (1). A working wheel body (5) is fixedly installed on the outer side of the installation shaft (4). A driven pulley (16) is fixedly connected to the rear end of the installation shaft (4). A telescopic frame (10) is fixedly connected to the rear side of the housing (1). A motor (11) is fixedly connected to the movable end of the telescopic frame (10). A driving pulley (12) is fixedly connected to the output end of the motor (11). The driving pulley (12) is connected to the driven pulley (16) via a belt. A telescopic electric cylinder (15) is installed on the front side of the driving pulley (12). A blocking member (9) is provided on the outer side of both the driving pulley (12) and the driven pulley (16).

2. A novel water turbine impeller with a protective mechanism according to claim 1, characterized in that, The rear end of the housing (1) is fixedly connected to a slide rail (14), and a connecting block (13) is slidably connected inside the slide rail (14). The connecting block (13) is fixedly connected to the front side of the drive pulley (12), and the output end of the telescopic electric cylinder (15) is fixedly connected to the connecting block (13).

3. A novel turbine impeller with a protective mechanism according to claim 1, characterized in that, The blocking member (9) includes a mounting rod (17), the end of which is fixedly connected to a limiting block (18) by a screw (19), and the limiting block (18) is disposed on the side of the driving pulley (12) or the driven pulley (16).

4. A novel turbine impeller with a protective mechanism according to claim 3, characterized in that, An insertion rod (20) is fixedly connected to one side of the limiting block (18), and a slot (21) is provided at the end of the mounting rod (17), and the insertion rod (20) is located inside the slot (21).

5. A novel water turbine impeller with a protective mechanism according to claim 1, characterized in that, A water tank (3) is fixedly connected to the top of the housing (1), and a water pump (6) is fixedly installed inside the water tank (3). The output end of the water pump (6) is fixedly connected to a water outlet pipe (7), and the water outlet pipe (7) extends to the inner top of the housing (1).

6. A novel turbine impeller with a protective mechanism according to claim 1, characterized in that, The mounting shaft (4) is rotatably mounted on both the front and rear sides with bearing seats (8), and the bearing seats (8) are fixedly connected to the outside of the housing (1).

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