Adjustable water turbine runner

Abstract

The utility model discloses an adjustable water turbine runner, and aims to provide an adjustable water turbine runner of which rotating vanes can rotate under the impact action of high-flow water. The device comprises a working box and a rotating wheel part, the working box is of a hollow structure, a water inlet is formed in one side of the working box, a water outlet is formed in the other side of the working box, a hole groove is formed in the top end of the working box, the rotating wheel part is located in the working box, the rotating wheel part comprises a main shaft, a connecting plate and rotating blades, and the main shaft is installed in the hole groove; the main shaft is provided with a first convex ring, the first convex ring is connected with the side wall of the main shaft, one end of the connecting plate is connected with the outer side wall of the first convex ring, the connecting plate is provided with a strip-shaped hole, the rotating vane is arranged in the strip-shaped hole, the springs are arranged on the left side and the right side of the rotating vane, one end of each spring is connected with the rotating vane, and the other end of each spring is connected with the connecting plate. The utility model has the beneficial effects that the function that the rotating blades can rotate is realized, and the stability of equipment is improved at the same time.

Description

Technical Field

[0001] The utility model relates to the technical field related to water turbine runners, in particular to an adjustable water turbine runner. Background Art

[0002] A hydraulic turbine is a power machine that converts the energy of water flow into rotational mechanical energy. It is used for irrigation and to drive grain processing equipment. Modern hydraulic turbines are mostly installed in hydropower stations to drive generators. In a hydropower station, water from an upstream reservoir is directed through a diversion pipe to the turbine, which rotates the turbine runner, driving the generator to generate electricity. The water, which has completed its work, is then discharged downstream through a tailwater pipe. The runner is a device used to guide water. The turbine's water guide mechanism is one of the core components of a hydro-generator set. It controls the direction and amount of water flow entering the unit during operation and is crucial to the stability and safety of the entire unit.

[0003] China Patent Authorization Announcement No.: CN221236813U, Authorization Announcement Date: June 28, 2024, discloses a water turbine water guide mechanism, relating to the technical field of water turbines, including a water turbine, wherein the water inlet end of the water turbine is connected to a connecting pipe, a conical filter screen is installed in the connecting pipe, the tip of the conical filter screen faces opposite to the direction of water flow, the outer periphery of the connecting pipe is sheathed with a collection structure, a collection chamber is provided in the collecting structure, and a sewage outlet is provided on the connecting pipe to connect the connecting pipe with the collection chamber, and the sewage outlet is located on one side of the conical surface of the conical filter screen. The disadvantage of this utility model is that the guide impeller is in a fixed state, and the guide impeller will be deformed under the impact of long-term large-flow water. Utility Model Content

[0004] The utility model aims to overcome the problem in the prior art that the angle of the rotor blades cannot be adjusted according to the water flow rate, and provides an adjustable turbine runner whose rotor blades can rotate under the impact of large flow water.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A kind of adjustable water turbine runner comprises a working box and a runner component, the working box is a hollow structure, a water inlet is provided on one side of the working box, a water outlet is provided on the other side of the working box, a hole groove is provided on the top of the working box, the runner component is located inside the working box, the runner component comprises a main shaft, a connecting plate and a rotor blade, the main shaft is installed in the hole groove, the main shaft is provided with a first convex ring, the first convex ring is connected to the side wall of the main shaft, one end of the connecting plate is connected to the outer side wall of the first convex ring, the connecting plate is provided with a strip hole, the rotor blade is placed in the strip hole, springs are provided on the left and right sides of the rotor blade, the spring is located in the strip hole, one end of the spring is connected to the rotor blade, and the other end of the spring is connected to the connecting plate.

[0007] The connecting plate limits the position of the rotor blades, and springs are installed on both sides of the rotor blades. When a large water flow impacts the rotor blades, the springs can adjust the rotor blades to a position in the same direction as the water flow. This can reduce the impact area of ​​the water flow on the rotor blades and buffer the impact of the water flow on the rotor blades, preventing the rotor blades from deforming under the impact of large flow rates. This design realizes the rotation function of the rotor blades.

[0008] Preferably, the work box is equipped with a first bearing, located within the slot. One end of the main shaft is connected to the external generator via the first bearing. The first bearing reduces friction between the main shaft and the work box. This design increases the service life of the equipment.

[0009] Preferably, the workbox has an arc groove at its bottom end, which houses a second bearing located within the groove. The other end of the spindle has an arc-shaped cross-section, which is located within the groove and connected to the workbox via the second bearing. The second bearing reduces friction between the spindle and the workbox, while the arc-shaped cross-section of the other end of the spindle also reduces friction. This design increases the service life of the equipment.

[0010] Preferably, the main shaft is further provided with a second convex ring, which is connected to the side wall of the main shaft and is located below the first convex ring. The second convex ring is provided with a limit seat and a rotating arm. The limit seat is located at the top of the second convex ring, one side of the limit seat is connected to the second convex ring, and the other side of the limit seat is connected to one end of the rotating arm via a rotating shaft. The other end of the rotating arm is rotatably connected to the bottom end of the rotor blade. The limit seat limits the position of the rotor blade, so that the rotor blade is perpendicular to the second convex ring, which can increase the contact area between the water flow and the rotor blade and improve the working efficiency of the equipment. The rotating arm can synchronously adjust the position of the rotor blade, thereby improving the stability of the equipment. This design improves the stability of the equipment.

[0011] Preferably, a buffer pad is provided on the outer side wall of the rotor blade, connected to the rotor blade, and the rotor blade has an arc-shaped cross-section. The buffer pad is used to protect the rotor blade from damage caused by impurities such as stones in the water flow. This device increases the service life of the device.

[0012] Preferably, the other end of the connecting plate is flat, and the plane on which the other end of the connecting plate lies is tangent to the rotation trajectory of the rotor blade. The shape of the cutout conforms to the flow direction of the water flow, protecting the edge of the connecting plate from impact by the water flow. This design improves the stability of the device.

[0013] The beneficial effects of the utility model are: realizing the rotatable function of the rotor blades and improving the stability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0015] Figure 2 It is a structural schematic diagram of the runner component;

[0016] Figure 3 It is the front view of the main shaft;

[0017] Figure 4 yes Figure 2 A top view of center A;

[0018] Figure 5 It is a front sectional view of the working box.

[0019] In the figure: 1. working box, 101. water inlet, 102. water outlet, 103. hole groove, 2. wheel member, 201. main shaft, 202. first convex ring, 203. second convex ring, 204. connecting plate, 205. rotor blade, 206. strip hole, 207. spring, 208. limit seat, 209. rotating arm, 210. buffer pad, 3. first bearing, 301. arc groove, 302. second bearing. DETAILED DESCRIPTION

[0020] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0021] like Figure 1 、 Figure 2 and Figure 5 As shown, an adjustable turbine runner, the working box 1 is a hollow structure, a water inlet 101 is provided on one side of the working box 1, a water outlet 102 is provided on the other side of the working box 1, a hole groove 103 is provided on the top of the working box 1, and the runner part 2 is located inside the working box 1. The runner part 2 includes a main shaft 201, a connecting plate 204 and a rotor blade 205. The main shaft 201 is provided with a first convex ring 202, the first convex ring 202 is connected to the side wall of the main shaft 201, one end of the connecting plate 204 is connected to the outer side wall of the first convex ring 202, the connecting plate 204 is provided with a strip hole 206, and the rotor blade 205 is placed in the strip hole 206. Springs 207 are provided on the left and right sides of the leaf 205, and the springs 207 are located in the strip hole 206. One end of the spring 207 is connected to the rotating leaf 205, and the other end of the spring 207 is connected to the connecting plate 204. The working box 1 is provided with a first bearing 3, and the first bearing 3 is located in the hole groove 103. One end of the main shaft 201 is connected to the external engine shaft through the first bearing 3. An arc groove 301 is provided at the bottom end of the working box 1, and the working box 1 is provided with a second bearing 302. The second bearing 302 is located in the arc groove 301. The cross-section of the other end of the main shaft 201 is an arc shape and is connected to the working box 1 through the second bearing 302.

[0022] like Figure 3As shown, the main shaft 201 is also provided with a second convex ring 203, which is connected to the side wall of the main shaft 201 and is located below the first convex ring 202. The second convex ring 203 is provided with a limit seat 208 and a rotating arm 209. The limit seat 208 is located at the top of the second convex ring 203, one side of the limit seat 208 is connected to the second convex ring 203, and the other side of the limit seat 208 is connected to the rotating shaft at one end of the rotating arm 209, and the other end of the rotating arm 209 is connected to the bottom end of the rotating blade 205.

[0023] like Figure 4 As shown, a buffer pad 210 is provided on the outer wall of the rotor blade 205, and the buffer pad 210 is connected to the rotor blade 205. The cross-section of the rotor blade 205 is arc-shaped, and the other end face of the connecting plate 204 is a plane. The plane where the other end of the connecting plate 204 is located is tangent to the rotation trajectory of the rotor blade 205.

[0024] During use, the external water inlet pipe is connected to the water inlet 101, and the water flow impacts the rotor blade 205. The main shaft 201 is rotatably connected to the working box 1 through the first bearing 3 and the second bearing 302. When the water flow is strong, the rotor blade 205 compresses one side of the spring 207 in the strip hole 206, causing the rotor blade 205 to rotate, and the rotating arm 209 and the limit seat 208 to rotate. At the same time, the buffer pad 210 cushions the impact of the water flow, and the water flows to the water outlet 102 and is discharged from the working box 1. The above operation realizes the rotatable function of the rotor blade.

Claims

1. An adjustable turbine runner, characterized in that: The invention comprises a working box (1) and a rotating wheel (2), wherein the working box (1) is a hollow structure, a water inlet (101) is provided on one side of the working box (1), a water outlet (102) is provided on the other side of the working box (1), a hole groove (103) is provided on the top of the working box (1), and the rotating wheel (2) is located inside the working box (1), and the rotating wheel (2) comprises a main shaft (201), a connecting plate (204) and a rotating blade (205), wherein the main shaft (201) is installed in the hole groove (103), and the main shaft (201) is provided with a first convex ring (203). 2), the first convex ring (202) is connected to the side wall of the main shaft (201), one end of the connecting plate (204) is connected to the outer side wall of the first convex ring (202), the connecting plate (204) is provided with a strip hole (206), the rotating blade (205) is placed in the strip hole (206), and springs (207) are provided on the left and right sides of the rotating blade (205), the spring (207) is located in the strip hole (206), one end of the spring (207) is connected to the rotating blade (205), and the other end of the spring (207) is connected to the connecting plate (204).

2. The adjustable water turbine runner according to claim 1, characterized in that: The working box (1) is provided with a first bearing (3), the first bearing (3) is located in the hole groove (103), and one end of the main shaft (201) is connected to the external generator through the first bearing (3).

3. The adjustable water turbine runner according to claim 1, characterized in that: An arc groove (301) is provided at the bottom end of the working box (1), and a second bearing (302) is provided on the working box (1). The second bearing (302) is located in the arc groove (301). The cross-section of the other end of the main shaft (201) is in the shape of an arc. The other end of the main shaft (201) is located in the arc groove (301) and is connected to the working box (1) via the second bearing (302).

4. The adjustable water turbine runner according to claim 1, characterized in that: The main shaft (201) is further provided with a second convex ring (203), the second convex ring (203) being connected to the side wall of the main shaft (201), the second convex ring (203) being located below the first convex ring (202), the second convex ring (203) being provided with a limit seat (208) and a rotating arm (209), the limit seat (208) being located at the top end of the second convex ring (203), one side of the limit seat (208) being connected to the second convex ring (203), the other side of the limit seat (208) being connected to one end of the rotating arm (209) via a rotating shaft, and the other end of the rotating arm (209) being rotatably connected to the bottom end of the rotating blade (205).

5. The adjustable water turbine runner according to claim 1, characterized in that: A buffer pad (210) is provided on the outer side wall of the rotating blade (205), and the buffer pad (210) is connected to the rotating blade (205). The cross-section of the rotating blade (205) is arc-shaped.

6. The adjustable water turbine runner according to claim 1, characterized in that: The other end surface of the connecting plate (204) is a plane, and the plane where the other end of the connecting plate (204) is located is tangent to the rotation trajectory of the rotor blade (205).

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