Power generation device of liquid turbine

Abstract

The utility model relates to the technical field of power generation devices, in particular to a liquid turbine power generation device which comprises a driving unit, a power generation unit and a mounting frame, the driving unit comprises a wheel type mounting seat, an annular groove extending in the circumferential direction of the mounting seat is formed in the wheel face of the mounting seat, and a plurality of blades are arranged in the annular groove. The plurality of blades are distributed in an array along the circumference of the mounting seat, the blades are rotationally connected with the mounting seat through a rotating shaft, the end part of the rotating shaft extends to penetrate through the hub surface of the mounting seat and is provided with a gear coaxial with the rotating shaft, the hub surface of the mounting seat is provided with a gear ring rotationally matched with the mounting seat, and the gear ring is respectively meshed with the plurality of gears; a telescopic pushing mechanism used for pushing the gear ring to rotate is arranged on the mounting base, the pushing end of the telescopic pushing mechanism is hinged to the gear ring, and the end, away from the gear ring, of the telescopic pushing mechanism is hinged to the mounting base. The utility model aims to solve the technical problem that the angle of the blade of the existing water turbine cannot be adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of power generation devices, and particularly relates to a liquid turbine power generation device. Background Art

[0002] Liquid turbines mainly refer to water turbines. Existing water turbines mainly refer to axial flow water turbines, impulse water turbines, etc. An impulse water turbine is a hydraulic power generation device that generates driving force through the impact force of fast-flowing water on the rotor. The rotational speed of its rotor is affected by the inlet water flow velocity and the magnitude of the impact force of the impact water flow on the rotor. Different rotational speeds have an important impact on the performance of the impulse water turbine. Generally speaking, increasing the rotational speed can improve the output power of the water turbine, but it will also cause the following problems: one is that the stress on the rotor increases, which is likely to cause mechanical failure; the second is that the high-speed rotating rotor will cause air jet and vibration phenomena, affecting the stability and service life of the water turbine; the third is that too high a rotational speed will also cause the water turbine to operate unevenly and even stall.

[0003] For some impulse water turbines, the water flow is not guided by a water inlet pipe to impact the impeller, but directly relies on the flow of natural water to impact the impeller to achieve the rotation of the rotor. However, since the flow velocity of natural water is uncertain, the rotational speed of such water turbines is also uncertain. And since such water turbines cannot adjust the angle of the blades, it is not convenient to control the rotational speed of the water turbine to reach a better operating state. Summary of the Utility Model

[0004] In view of this, the purpose of the utility model is to provide a liquid turbine power generation device to solve the technical problem that existing water turbines cannot adjust the angle of the blades, thus making it inconvenient to control the rotational speed of the water turbine to enable the water turbine to reach a better operating state.

[0005] The utility model is realized through the following technical solutions:

[0006] A liquid turbine power generation device includes a driving unit, a power generation unit, and a mounting frame for mounting the driving unit and the power generation unit. The driving unit is used to drive the coil of the power generation unit to rotate so as to generate electricity for the power generation unit. The driving unit includes a wheel-shaped mounting seat. An annular groove extending along the circumferential direction of the mounting seat is formed on the wheel surface of the mounting seat. A plurality of blades are arranged in the annular groove. The plurality of blades are arranged in an array along the circumference of the mounting seat. The blades are rotatably connected to the mounting seat through a rotating shaft. The end of the rotating shaft extends through the hub surface of the mounting seat, and a gear coaxial with the rotating shaft is provided. A toothed ring rotatably matched with the mounting seat is arranged on the hub surface of the mounting seat. The toothed ring meshes with a plurality of gears respectively;

[0007] A telescopic pushing mechanism for driving the gear ring to rotate is arranged on the mounting seat. The pushing end of the telescopic pushing mechanism is hinged to the gear ring, and the end of the telescopic pushing mechanism far from the gear ring is hinged to the mounting seat. The gear ring is driven to rotate by the telescopic pushing mechanism, and then a plurality of gears are driven to rotate synchronously.

[0008] Further, a plurality of arc-shaped grooves extending along the circumferential direction of the gear ring are formed in the gear ring. A limiting column is arranged in the arc-shaped groove. The limiting column abuts against two side walls of the arc-shaped groove. One end of the limiting column is connected to the mounting seat, and the other end extends outward along the depth direction of the arc-shaped groove;

[0009] When the limiting columns respectively abut against two ends of the arc-shaped groove, the impact surface of the blade and the radial direction of the mounting seat are perpendicular and parallel respectively.

[0010] Further, a round limiting block is arranged at one end of the limiting column far from the mounting seat. The diameter of the limiting block is larger than that of the limiting column. One side of the limiting block relative to the mounting seat abuts against the gear ring.

[0011] Further, a connecting sleeve is sleeved at the end of the telescopic pushing mechanism far from the gear ring. The connecting sleeve is hinged to the mounting seat. A spring is arranged in the connecting sleeve. One end of the spring is connected to the end of the telescopic pushing mechanism far from the gear ring, and the other end is connected to the connecting sleeve.

[0012] Further, a basin-shaped protective shell is arranged on the hub surface of the mounting seat. The gears, the gear ring and the telescopic pushing mechanism are all located inside the protective shell.

[0013] Further, a first sealing member is arranged between the protective shell and the mounting seat.

[0014] The beneficial effects of the present utility model are as follows:

[0015] The gear ring is driven to rotate by the telescopic pushing mechanism. The rotation of the gear ring drives the gears to rotate, and then drives the blades to rotate. The rotation of the blades will change the angle of the blades, and then adjust the speed of the water turbine so that the water turbine reaches a better operating state.

[0016] Other advantages, objectives and features of the present utility model will be described to some extent in the subsequent specification, and to some extent, will be obvious to those skilled in the art based on the study of the following text, or can be taught from the practice of the present utility model. The objectives and other advantages of the present utility model can be achieved and obtained through the following specification. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of an embodiment of the present utility model;

[0018] Figure 2This is a schematic structural diagram after removing the protective shell in the embodiment of the present utility model;

[0019] Figure 3 It is Figure 2 the sectional structural schematic Figure 1 ;

[0020] Figure 4 It is Figure 3 the enlarged structural schematic diagram of part A in

[0021] Figure 5 It is Figure 2 the sectional structural schematic Figure 2 ;

[0022] Figure 6 It is Figure 5 the enlarged structural schematic diagram of part B in

[0023] In the figure: mounting seat 1, annular groove 2, blade 3, rotating shaft 4, hub surface 5, gear 6, toothed ring 7, telescopic pushing mechanism 8, arc groove 9, limit post 10, limit block 11, connecting sleeve 12, spring 13, protective shell 14, first seal 15, transmission shaft 16. Specific embodiments

[0024] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Usually, the components of the embodiments of the present utility model described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the claimed present utility model, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0026] It should be noted that: similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0027] In the above description of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "one side" and "the other side" is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present utility model is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, terms such as "first" and "second" are only used for distinguishing descriptions and should not be construed as indicating or implying relative importance.

[0028] In addition, terms such as "the same" do not mean that the components are required to be absolutely the same, but there may be slight differences. The term "vertical" only means that the positional relationship between components is relatively more vertical compared to "parallel", and does not mean that the structure must be completely vertical, but can be slightly inclined.

[0029] Please refer to Figures 1-6 , the present utility model provides a technical solution: a liquid turbine power generation device, including a driving unit, a power generation unit, and a mounting frame for mounting the driving unit and the power generation unit. The driving unit is used to drive the coil of the power generation unit to rotate so that the power generation unit generates electricity. The driving unit includes a wheel-shaped mounting seat 1. A circular groove 2 extending along the circumferential direction of the mounting seat 1 is formed on the wheel surface of the mounting seat 1. A plurality of blades 3 are arranged in the circular groove 2. The plurality of blades 3 are arranged in an array along the circumference of the mounting seat 1. Water flow impacts the blades 3 to drive the water turbine to rotate. A transmission shaft 16 passing through the mounting seat 1 and extending along the axis of the mounting seat 1 to both sides is installed at the center of the mounting seat 1. The mounting seat 1 drives the coil of the power generation unit to rotate through the transmission shaft 16, and then generates electricity through the principle of electromagnetic induction. The blades 3 are rotatably connected to the mounting seat 1 through a rotating shaft 4. The end of the rotating shaft 4 extends along the thickness direction of the mounting seat 1 through the hub surface 5 of the mounting seat 1, and a gear 6 coaxial with the rotating shaft 4 is provided. The gear 6 is fixedly connected to the rotating shaft 4. A toothed ring 7 rotatably engaged with the mounting seat 1 is provided on the hub surface 5 of the mounting seat 1. The toothed ring 7 is respectively engaged with a plurality of gears 6. The rotation of the toothed ring 7 drives the plurality of gears 6 to rotate synchronously;

[0030] A telescopic pushing mechanism 8 for pushing the toothed ring 7 to rotate is provided on the mounting seat 1. The pushing end of the telescopic pushing mechanism 8 is hinged to the toothed ring 7, and one end of the telescopic pushing mechanism 8 away from the toothed ring 7 is hinged to the mounting seat 1. The toothed ring 7 is pushed to rotate through the telescopic pushing mechanism 8, and then the plurality of gears 6 are driven to rotate synchronously.

[0031] When adjusting the angle of the blade 3 according to the water flow intensity, the telescopic pushing mechanism 8 is activated. The pushing end of the telescopic pushing mechanism 8 pushes the toothed ring 7 to rotate. The rotation of the toothed ring 7 will drive the gear 6 to rotate synchronously, and then drive the blade 3 to rotate synchronously, realizing the adjustment of the angle of the blade 3. The change in the angle of the blade 3 will change the impact force of the water flow on the blade 3, thereby changing the rotation speed of the water turbine. When the water flow speed increases, the angle of the blade 3 can be gradually changed, so that the impact surface of the blade 3 changes from perpendicular to parallel with the water flow direction step by step, and the optimal angle of the blade 3 can be found during this process, so that the rotation speed of the water turbine remains relatively stable. When the water flow strengthens, the rotation speed is not easily affected. When the water flow speed decreases, the angle of the blade 3 can be gradually changed, so that the impact surface of the blade 3 changes from parallel to perpendicular with the water flow direction step by step, and the optimal angle of the blade 3 can be found during this process, so that the rotation speed of the water turbine remains relatively stable. When the water flow strengthens, the rotation speed is not easily affected. It should be noted that the water flow should flow into the water turbine from the tangential direction, so that when the water flow direction is parallel to the impact surface of the blade 3, the impact force of the water flow on the blade 3 is the smallest, and when the water flow direction is perpendicular to the impact surface of the blade 3, the impact force of the water flow on the blade 3 is the largest.

[0032] In the present utility model, the telescopic pushing mechanism 8 is used to push the toothed ring 7 to rotate. The rotation of the toothed ring 7 drives the gear 6 to rotate, and then drives the blade 3 to rotate. The rotation of the blade 3 will change the angle of the blade 3, thereby facilitating the adjustment of the rotation speed of the water turbine so that the water turbine reaches a better operating state.

[0033] Specifically, the telescopic pushing mechanism 8 can be an electric push rod, a hydraulic push rod, and other pushing structures with telescopic pushing functions.

[0034] In this embodiment: The toothed ring 7 is provided with a plurality of arc-shaped grooves 9 extending along the circumferential direction of the toothed ring 7. A limiting column 10 is arranged in the arc-shaped groove 9. The limiting column 10 abuts against the two side walls of the arc-shaped groove 9. One end of the limiting column 10 is connected to the mounting seat 1, specifically by welding, and the other end extends outward along the depth direction of the arc-shaped groove 9. The arc-shaped groove 9 and the limiting column 10 serve as the rotating structure of the toothed ring 7. When the toothed ring 7 rotates, the limiting column 10 slides in the arc-shaped groove 9;

[0035] When the limiting column 10 abuts against the two ends of the arc-shaped groove 9 respectively, the impact surface of the blade 3 and the radial direction of the mounting seat 1 are perpendicular and parallel respectively. Through the above limitation, the arc-shaped groove 9 has a positioning function, that is, when the water flow is constant and the limiting column 10 is located at the two ends of the arc-shaped groove 9 respectively, the impact force of the blade 3 receiving the water flow is the largest or the smallest.

[0036] In this embodiment: A circular limiting block 11 is arranged at one end of the limiting column 10 away from the mounting seat 1. The diameter of the limiting block 11 is larger than the diameter of the limiting column 10. One side of the limiting block 11 relative to the mounting seat 1 abuts against the toothed ring 7.

[0037] By using the limiting block 11 as a limiting structure of the gear ring 7 , the position of the gear ring 7 is limited, thereby effectively reducing the possibility of the gear ring 7 being separated from the end of the limiting column 10 .

[0038] In the present embodiment: a connecting sleeve 12 is sleeved on the end of the telescopic pushing mechanism 8 away from the gear ring 7, the connecting sleeve 12 is hinged to the mounting seat 1, a spring 13 is arranged in the connecting sleeve 12, one end of the spring 13 is connected to the end of the telescopic pushing mechanism 8 away from the gear ring 7, and the other end is connected to the connecting sleeve 12. Specifically, one end of the spring 13 is welded to the end of the telescopic pushing mechanism 8 away from the gear ring 7, and the other end is welded to the connecting sleeve 12.

[0039] By using the spring 13 as a buffer structure for the blade 3, when the water flow hits the blade 3, the blade 3 will rotate at a small angle, thereby driving the gear 6 to rotate, and the gear 6 drives the gear ring 7 to rotate. The rotation of the gear ring 7 will drive the telescopic driving mechanism 8 to move, thereby causing the spring 13 to elastically deform, thereby providing buffering protection for the blade 3. The spring 13 can also reduce the sound of the water flow hitting the blade 3, thereby having a noise reduction effect.

[0040] In this embodiment: the hub surface 5 of the mounting seat 1 is provided with a basin-shaped protective shell 14 , the protective shell 14 is located inside the water retaining shell, and the gear 6 , the gear ring 7 and the telescopic driving mechanism 8 are all located inside the protective shell 14 .

[0041] By using the protective shell 14 as a protective structure for the gear 6 , the gear ring 7 and the telescopic pushing mechanism 8 , the above components can be protected.

[0042] In this embodiment, a first sealing member 15 is disposed between the protective shell 14 and the mounting seat 1 .

[0043] In order to increase the waterproof performance of the protective shell 14, a first seal 15 is arranged between the protective shell 14 and the mounting seat 1. The first seal 15 is a sealing ring. The first seal 15 is embedded in the hub surface 5 of the mounting seat 1 and is circumferentially arranged along the outer edge of the mounting seat 1. The first seal 15 abuts against the edge of the protective shell 14 on the side away from the mounting seat 1.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A liquid turbine power generation device, comprising a drive unit, a power generation unit and a mounting frame for mounting the drive unit and the power generation unit, wherein the drive unit is used to drive the coil of the power generation unit to rotate so that the power generation unit generates electricity, characterized in that: The driving unit comprises a wheel-type mounting seat, the wheel surface of the mounting seat is provided with an annular groove extending along the circumference of the mounting seat, a plurality of blades are arranged in the annular groove, the plurality of blades are distributed in an array along the circumference of the mounting seat, the blades are rotatably connected to the mounting seat via a rotating shaft, the end of the rotating shaft extends through the hub surface of the mounting seat and is provided with a gear coaxial with the rotating shaft, the hub surface of the mounting seat is provided with a gear ring rotatably matched with the mounting seat, and the gear ring is respectively meshed with a plurality of gears; The mounting seat is provided with a telescopic pushing mechanism for pushing the gear ring to rotate, the pushing end of the telescopic pushing mechanism is hinged to the gear ring, and the end of the telescopic pushing mechanism away from the gear ring is hinged to the mounting seat, the gear ring is pushed to rotate by the telescopic pushing mechanism, and then multiple gears are driven to rotate synchronously.

2. A liquid turbine power generation device according to claim 1, characterized in that: The gear ring is provided with a plurality of arc grooves extending along the circumferential direction of the gear ring, and a limiting column is arranged in the arc groove, and the limiting column abuts against two side walls of the arc groove, and one end of the limiting column is connected to the mounting seat, and the other end extends outward along the depth direction of the arc groove; When the limiting columns are respectively against the two ends of the arc-shaped groove, the impact surface of the blade is respectively perpendicular and parallel to the radial direction of the mounting seat.

3. A liquid turbine power generation device according to claim 2, characterized in that: A circular limiting block is arranged at one end of the limiting column away from the mounting seat, the diameter of the limiting block is larger than the diameter of the limiting column, and the limiting block abuts against the gear ring on one side of the mounting seat.

4. A liquid turbine power generation device according to claim 1, characterized in that: The end of the telescopic pushing mechanism away from the gear ring is sleeved with a connecting sleeve, the connecting sleeve is hinged to the mounting seat, a spring is arranged in the connecting sleeve, one end of the spring is connected to the end of the telescopic pushing mechanism away from the gear ring, and the other end is connected to the connecting sleeve.

5. A liquid turbine power generation device according to any one of claims 1 to 4, characterized in that: A basin-shaped protective shell is arranged on the hub surface of the mounting seat, and the gear, gear ring and telescopic driving mechanism are all located inside the protective shell.

6. A liquid turbine power generation device according to claim 5, characterized in that: A first sealing member is arranged between the protective shell and the mounting seat.

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