Water wheel, hydroelectric power generation device and ship

Abstract

The invention discloses a water wheel, a hydroelectric generation device and a ship, and relates to the technical field of fluid machinery, the water wheel comprises a fixed shell, a first transmission shaft, a fixed disc, two rotating discs and a plurality of blades; the two rotating discs are fixedly arranged on the first transmission shaft in a sleeving mode, and the fixed disc is fixedly connected with the fixed shell; a cam guide rail is arranged on the fixed disc, and an annular sliding block is arranged on the cam guide rail; a swing transmission assembly is arranged on the rotating disc; one end of each blade is hinged to the outer edge of one rotating disc, and the other end of each blade is hinged to the outer edge of the other rotating disc; the swing transmission assemblies, the annular sliding blocks and the blades are in one-to-one correspondence, one ends of the swing transmission assemblies are connected with the annular sliding blocks, the other ends of the swing transmission assemblies are connected with the blades, and the annular sliding blocks can drive the corresponding blades to swing outwards and stretch out when moving to the protruding ends. When moving to the base end, the annular sliding blocks can drive the corresponding blades to swing inwards and retract; the energy consumption can be reduced, and the energy utilization rate is effectively improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of fluid machinery, in particular to a water wheel, a hydroelectric power generation device and a ship. BACKGROUND

[0002] The water wheel can be applied in a hydroelectric power generation project, and water energy of water flow is converted into mechanical energy by taking the water wheel as a prime mover, rotation of the water wheel drives a rotor of a generator to convert the mechanical energy into electric energy and output, so as to improve utilization of water energy; the water wheel can also be applied on a ship, and the water wheel is driven to rotate by a driving device to push water, and the ship is driven to move by relying on the counter thrust of the water wheel.

[0003] However, the blades of the water wheel are easy to beat the water surface in the process of entering the water, and part of water is easy to be carried up in the process of leaving the water, and both beating the water surface and carrying part of water up by the blades of the water wheel will cause energy consumption, in the hydroelectric power generation project, the power generation will be reduced, and the energy utilization will be reduced, in the ship movement, the power loss of the driving device will be increased, and the energy utilization will be reduced. SUMMARY

[0004] The purpose of the present application is to provide a water wheel, a hydroelectric power generation device and a ship, so as to solve the problems existing in the prior art, reduce energy consumption and effectively improve energy utilization.

[0005] In order to achieve the above purpose, the present application provides the following solutions:

[0006] The application provides a water wheel, which comprises a fixed shell, a first transmission shaft, a fixed disc, two rotating discs and a plurality of blades; the first transmission shaft is used for transmission connection with a generator or an engine, the first transmission shaft is arranged in the fixed shell and can rotate around a first axis, both of the rotating discs are fixedly sleeved on the first transmission shaft, the fixed disc is sleeved outside the first transmission shaft, the fixed disc is fixedly connected with the fixed shell and is arranged between the two rotating discs; a cam guide rail is arranged on the fixed disc, one end of the cam guide rail is a convex end, the other end of the cam guide rail is a base end, a plurality of annular sliding blocks are arranged on the cam guide rail and can slide along the cam guide rail; a swing transmission assembly is arranged on each rotating disc and can rotate with the rotating disc; each blade is arranged around the first transmission shaft, one end of each blade is hingedly connected to the outer edge of one rotating disc, and the other end of each blade is hingedly connected to the outer edge of the other rotating disc; the number of the swing transmission assemblies, the number of the annular sliding blocks and the number of the blades are equal, the swing transmission assemblies, the annular sliding blocks and the blades are in one-to-one correspondence, one end of each swing transmission assembly is connected with an annular sliding block, the other end of each swing transmission assembly is connected with a blade, and when the annular sliding block moves to the convex end, the corresponding blade can be swung outward and extended, and when the annular sliding block moves to the base end, the corresponding blade can be swung inward and retracted.

[0007] Preferably, the convex end is a first circular arc segment, the base end is a second circular arc segment, and the convex end and the base end are smoothly and transitionally connected; the center of the convex end coincides with the center of the base end, and the radius of the convex end is greater than the radius of the base end.

[0008] Preferably, a rotating shell is sleeved outside the fixed shell, the rotating shell is fixedly connected with the rotating disc, and a support bearing is arranged between the rotating shell and the fixed shell, the inner ring of the support bearing is fixedly connected with the fixed shell, and the outer ring of the support bearing is fixedly connected with the rotating shell.

[0009] Preferably, the swing transmission assembly comprises a bracket, a radial sliding block, a radial sliding rod, a radial sliding groove and a swing rod, the bracket is connected with the annular sliding block, the radial sliding groove is arranged on the rotating disc, the radial sliding block is connected with the bracket, the radial sliding block is arranged on the radial sliding groove, the radial sliding block is connected with the inner end of the radial sliding rod, the radial sliding block and the radial sliding rod can move in the radial direction of the rotating disc along the radial sliding groove, the outer end of the radial sliding rod is hingedly connected with the first end of the swing rod, and the second end of the swing rod is hingedly connected with the blade.

[0010] Preferably, a radial pulley is arranged on the radial sliding block.

[0011] Preferably, a positioning bearing is arranged on the outer edge of the rotating disc, a swing bearing is arranged on the second end of the swing rod, and the two ends of the blade are both provided with a central shaft and a swing shaft, the central shaft is connected with the positioning bearing, and the swing shaft is connected with the swing bearing.

[0012] Preferably, the blade is an arc-shaped plate.

[0013] Preferably, two ring pulleys are arranged on the ring slider, the two ring pulleys are symmetrically arranged on the two sides of the cam guide rail, and the two ring pulleys are both in contact with the cam guide rail.

[0014] The application further provides a hydroelectric power generation device, which comprises a generator and the water wheel.

[0015] The application further provides a ship, which comprises a motor and the water wheel, a second transmission shaft is further arranged between the transmission shaft of the motor and the first transmission shaft of the water wheel, the transmission shaft of the motor is parallel to the first transmission shaft of the water wheel, and the second transmission shaft is perpendicular to the transmission shaft of the motor; a first bevel gear is fixedly arranged at the output end of the transmission shaft of the motor, a second bevel gear is fixedly arranged at the input end of the second transmission shaft, a third bevel gear is fixedly arranged at the output end of the second transmission shaft, and a fourth bevel gear is fixedly arranged at the input end of the first transmission shaft of the water wheel; the first bevel gear is engaged with the second bevel gear, and the third bevel gear is engaged with the fourth bevel gear.

[0016] The application has the following technical effects relative to the prior art:

[0017] The water wheel, the hydroelectric power generation device and the ship provided by the application realize power transmission between the water wheel and the generator or the engine by arranging the first transmission shaft, realize that the fixed disc remains fixed by fixing the fixed disc and the fixed shell as a whole, realize that the two rotating discs can rotate synchronously with the first transmission shaft by fixing the two rotating discs on the first transmission shaft, realize that the blades can rotate with the rotating discs by hingedly connecting one end of each blade to the outer edge of one rotating disc and hingedly connecting the other end of each blade to the outer edge of the other rotating disc, realize linkage between the rotating discs, the endless slide and the blades by arranging the swing transmission assembly which can rotate with the rotating discs and is connected with the endless slide at one end and connected with the blades at the other end, specifically, the swing transmission assembly can rotate with the rotating discs, the endless slide is dragged to slide along the cam guide rail by one end of the swing transmission assembly, the endless slide sliding along the cam guide rail in turn drives the swing transmission assembly to push or pull the blades, thereby driving the blades to swing, and when the endless slide moves to the protruding end, the corresponding blades can be driven to swing outward and extend, so that the blades have sufficient stress area to push water or be pushed by water, when the endless slide moves to the base end, the corresponding blades can be driven to swing inward and retract, so as to reduce the stress area of the blades, so as to reduce the resistance of the blades to water or the resistance of water to the blades before entering water from the outside or before entering the outside from water, thereby reducing energy consumption and effectively improving energy utilization rate. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0019] Figure 1 The schematic diagram of the water wheel provided by the present application;

[0020] Figure 2 The connection schematic diagram of the blades and the two rotating discs in the water wheel provided by the present application;

[0021] Figure 3 The schematic diagram of the blades in the water wheel provided by the present application;

[0022] Figure 4 The schematic diagram of the fixed disc in the water wheel provided by the present application;

[0023] Figure 5 The schematic diagram of the rotating disc in the water wheel provided by the present application;

[0024] In the figure: 1-fixed shell, 2-first transmission shaft, 3-fixed disc, 4-rotary disc, 5-vane, 6-cam guide rail, 7-protruding end, 8-base end, 9-circulating slider, 10-rotary shell, 11-radial slider, 12-radial slide rod, 13-radial slide, 14-oscillating rod, 15-positioning bearing, 16-oscillating bearing, 17-center shaft, 18-oscillating shaft, 19-transmission shaft of engine, 20-second transmission shaft, 21-connecting shell, 22-engine shaft shell. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0026] The present application aims to provide a water wheel, a hydroelectric power generation device and a ship, so as to solve the problems existing in the prior art, reduce energy consumption and effectively improve energy utilization.

[0027] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] Embodiment one

[0029] As Figures 1 to 5As shown, the embodiment provides a water wheel, comprising a fixed shell 1, a first transmission shaft 2, a fixed disc 3, two rotating discs 4 and a plurality of blades 5; the first transmission shaft 2 is used for transmission connection with a generator or an engine, the first transmission shaft 2 is rotatably arranged in the fixed shell 1 about a first axis, the two rotating discs 4 are both fixedly sleeved on the first transmission shaft 2, the fixed disc 3 is sleeved outside the first transmission shaft 2, the fixed disc 3 is fixedly connected with the fixed shell 1, and the fixed disc 3 is arranged between the two rotating discs 4; the fixed disc 3 is provided with a cam guide rail 6, one end of the cam guide rail 6 is a protruding end 7, the other end of the cam guide rail 6 is a base end 8, a plurality of annular sliding blocks 9 are arranged on the cam guide rail 6, and the annular sliding blocks 9 can slide along the cam guide rail 6; the rotating disc 4 is provided with a swing transmission assembly, the swing transmission assembly can rotate with the rotating disc 4; the blades 5 are arranged around the first transmission shaft 2, one end of each blade 5 is hingedly connected to the outer edge of one rotating disc 4, and the other end of each blade 5 is hingedly connected to the outer edge of the other rotating disc 4; the number of swing transmission assemblies, the number of annular sliding blocks 9 and the number of blades 5 are equal, the swing transmission assembly, the annular sliding block 9 and the blade 5 are one-to-one corresponding, one end of the swing transmission assembly is connected with the annular sliding block 9, the other end of the swing transmission assembly is connected with the blade 5, the annular sliding block 9 can drive the corresponding blade 5 to swing outward and extend when moving to the protruding end 7, and the annular sliding block 9 can drive the corresponding blade 5 to swing inward and retract when moving to the base end 8.

[0030] The water wheel provided by the embodiment realizes power transmission between the water wheel and the generator or the engine by arranging the first transmission shaft 2, realizes that the fixed disc 3 remains fixed by fixing the fixed disc 3 and the fixed shell 1 as a whole, realizes that the two rotating discs 4 can rotate synchronously with the first transmission shaft 2 by fixing the two rotating discs 4 on the first transmission shaft 2, realizes that the blades 5 can rotate with the rotating discs 4 by hingedly connecting one end of each blade 5 to the outer edge of one rotating disc 4 and hingedly connecting the other end of each blade 5 to the outer edge of the other rotating disc 4, realizes linkage between the rotating disc 4, the ring-shaped sliding block 9 and the blade 5 by arranging the swing transmission assembly which can rotate with the rotating disc 4 and is connected at one end to the ring-shaped sliding block 9 and at the other end to the blade 5, specifically, the swing transmission assembly can rotate with the rotating disc 4, the ring-shaped sliding block 9 is pulled along the cam guide rail 6 by one end of the swing transmission assembly, the ring-shaped sliding block 9 sliding along the cam guide rail 6 in turn drives the swing transmission assembly to push or pull the blade 5, further drives the blade 5 to swing, and when the ring-shaped sliding block 9 moves to the protruding end 7, the corresponding blade 5 can be driven to swing outward and extend, so that the blade 5 has sufficient stress area to push water or be pushed by water, when the ring-shaped sliding block 9 moves to the base end 8, the corresponding blade 5 can be driven to swing inward and retract, so as to reduce the stress area of the blade 5, reduce the resistance of the blade 5 to water or the resistance of water to the blade 5 before entering water from the outside or before entering the outside from water, thereby reducing energy consumption and effectively improving energy utilization rate.

[0031] As a more preferred embodiment of the embodiment, the protruding end 7 is a first circular arc segment, the base end 8 is a second circular arc segment, the protruding end 7 and the base end 8 are smoothly and transitionally connected, and the structure is simple and convenient for manufacturing and use.

[0032] Further, the center of the protruding end 7 coincides with the center of the base end 8, and the radius of the protruding end 7 is greater than the radius of the base end 8, which is convenient for lift control of the ring-shaped sliding block 9 and facilitates design and manufacture; as a more preferred embodiment of the embodiment, the first circular arc segment accounts for 10% of the total circumference, and the second circular arc segment accounts for 85% of the total circumference.

[0033] Further, the fixed shell 1 is sleeved with a rotating shell 10, the rotating shell 10 is fixedly connected with the rotating disc 4, a support bearing is arranged between the rotating shell 10 and the fixed shell 1, the inner ring of the support bearing is fixedly connected with the fixed shell 1, and the outer ring of the support bearing is fixedly connected with the rotating shell 10, which can effectively improve the stability of rotation of the rotating disc 4 and the first transmission shaft 2.

[0034] Further, the swing transmission assembly comprises a support, a radial slider 11, a radial slide rod 12, a radial slide rail 13 and a swing rod 14, the support is connected with the ring slider 9, the radial slide rail 13 is arranged on the rotating disc 4, the radial slider 11 is connected with the support, the radial slider 11 is arranged on the radial slide rail 13, the radial slider 11 is connected with the inner end of the radial slide rod 12, the radial slider 11 and the radial slide rod 12 can move in the radial direction of the rotating disc 4 along the radial slide rail 13, the outer end of the radial slide rod 12 is hinged with the first end of the swing rod 14, the second end of the swing rod 14 is hinged with the blade 5, the radial movement of the radial slider 11 and the radial slide rod 12 is guided by the radial slide rail 13, and the stability of the radial movement of the radial slider 11 and the radial slide rod 12 is improved.

[0035] Further, the radial slider 11 is provided with a radial pulley, and the radial pulley is in rolling contact with the radial slide rail 13, so that the friction can be reduced and the abrasion can be reduced.

[0036] Further, the outer edge of the rotating disc 4 is provided with a positioning bearing 15, the second end of the swing rod 14 is provided with a swing bearing 16, both ends of the blade 5 are provided with a central shaft 17 and a swing shaft 18, the central shaft 17 is connected with the positioning bearing 15, and the swing shaft 18 is connected with the swing bearing 16, so that the structure is simple and the manufacturing and using are facilitated.

[0037] Further, the blade 5 is an arc-shaped plate, the residence time of water on the blade 5 can be prolonged, the water flows out slowly, the slower the water flow is, the greater the resistance is, the greater the power generated by the resistance is, and the power generation capacity or the ship driving capacity is increased.

[0038] Further, the ring slider 9 is provided with two ring pulleys, the two ring pulleys are symmetrically arranged on the two sides of the cam guide rail 6, the two ring pulleys are in contact with the cam guide rail 6, the cam guide rail 6 is clamped and limited on the two sides by the two ring pulleys, the ring pulley can be effectively prevented from being separated from the cam guide rail 6, and the stability of the movement of the ring slider 9 is ensured.

[0039] Embodiment two

[0040] The embodiment provides a hydroelectric power generation device, which comprises a generator and the water wheel in the embodiment one.

[0041] The water power generation device provided by the embodiment realizes power transmission between the water wheel and the generator by arranging the first transmission shaft 2, realizes that the fixed disc 3 remains fixed by fixing the fixed disc 3 and the fixed shell 1 as a whole, realizes that the two rotating discs 4 can rotate synchronously with the first transmission shaft 2 by fixing the two rotating discs 4 on the first transmission shaft 2, realizes that the blades 5 can rotate with the rotating discs 4 by hingedly connecting one end of each blade 5 to the outer edge of one rotating disc 4 and hingedly connecting the other end of each blade 5 to the outer edge of the other rotating disc 4, realizes linkage among the rotating disc 4, the ring sliding block 9 and the blade 5 by arranging the swing transmission assembly which can rotate with the rotating disc 4 and is connected at one end to the ring sliding block 9 and at the other end to the blade 5, specifically, the swing transmission assembly can rotate with the rotating disc 4, the ring sliding block 9 is pulled along the cam guide rail 6 by one end of the swing transmission assembly, the ring sliding block 9 sliding along the cam guide rail 6 in turn drives the swing transmission assembly to push or pull the blade 5, thereby driving the blade 5 to swing, and when the ring sliding block 9 moves to the protruding end 7, the corresponding blade 5 can be driven to swing outward and extend, so that the blade 5 has sufficient stress area to be pushed by water in the water, when the ring sliding block 9 moves to the base end 8, the corresponding blade 5 can be driven to swing inward and retract, reducing the stress area of the blade 5, so as to reduce the resistance of the blade 5 to water or water to the blade 5 before entering the water from the outside or entering the outside from the water, thereby reducing energy consumption and effectively improving energy utilization rate.

[0042] Embodiment three

[0043] The embodiment provides a ship, which comprises an engine and the water wheel in the embodiment one, a second transmission shaft 20 is further arranged between a transmission shaft 19 of the engine and the first transmission shaft 2 of the water wheel, the transmission shaft 19 of the engine is parallel to the first transmission shaft 2 of the water wheel, and the second transmission shaft 20 is perpendicular to the transmission shaft 19 of the engine; a first bevel gear is fixedly arranged at an output end of the transmission shaft 19 of the engine, a second bevel gear is fixedly arranged at an input end of the second transmission shaft 20, a third bevel gear is fixedly arranged at an output end of the second transmission shaft 20, and a fourth bevel gear is fixedly arranged at an input end of the first transmission shaft 2 of the water wheel; the first bevel gear is engaged with the second bevel gear, and the third bevel gear is engaged with the fourth bevel gear.

[0044] The ship provided by the embodiment realizes power transmission between the water wheel and the engine by arranging the first transmission shaft 2, realizes that the fixed disc 3 remains fixed by fixing the fixed disc 3 and the fixed shell 1 as a whole, realizes that the two rotating discs 4 can rotate synchronously with the first transmission shaft 2 by fixing the two rotating discs 4 on the first transmission shaft 2, realizes that the blades 5 can rotate with the rotating discs 4 by hingedly connecting one end of each blade 5 to the outer edge of one rotating disc 4 and hingedly connecting the other end of each blade 5 to the outer edge of the other rotating disc 4, realizes linkage between the rotating disc 4, the ring-shaped sliding block 9 and the blade 5 by arranging the swing transmission assembly which can rotate with the rotating disc 4 and is connected with the ring-shaped sliding block 9 at one end and connected with the blade 5 at the other end, specifically, the swing transmission assembly can rotate with the rotating disc 4, the ring-shaped sliding block 9 slides along the cam guide rail 6 under the traction of the one end of the swing transmission assembly, the swing transmission assembly drives the blade 5 to be pushed or pulled under the sliding of the ring-shaped sliding block 9 along the cam guide rail 6, further drives the blade 5 to swing, and the ring-shaped sliding block 9 can drive the corresponding blade 5 to swing outward and extend when moving to the protruding end 7, so that the blade 5 has sufficient stress area to push water or be pushed by water, the ring-shaped sliding block 9 can drive the corresponding blade 5 to swing inward and retract when moving to the base end 8, so as to reduce the stress area of the blade 5, reduce the resistance of the blade 5 to water or the resistance of water to the blade 5 before entering water from the outside or before entering the outside from water, thereby reducing energy consumption and effectively improving energy utilization.

[0045] As a more preferred embodiment of the embodiment, the second transmission shaft 20 is arranged in the connecting shell 21, the transmission shaft 19 of the engine is arranged in the engine shaft shell 22, the transmission shaft 19 of the engine and the engine shaft shell 22, the second transmission shaft 20 and the connecting shell 21 and the first transmission shaft 2 and the fixed shell 1 are all connected through bearings to improve the stability of rotation; the engine shaft shell 22 and the connecting shell 21, the connecting shell 21 and the fixed shell 1 and the end of the first transmission shaft 2 away from the fourth bevel gear and the rotating disc 4 are all connected through flanges for convenient disassembly and assembly.

[0046] It should be noted that the fixed connection mode not explicitly described in the embodiment can be specifically adopted in combination with actual manufacturing and use requirements, such as conventional bolt connection.

[0047] The principle and implementation mode of the application are described by using specific examples in the application, and the above embodiment is only used to help understand the method and core idea of the application; meanwhile, for those skilled in the art, the specific implementation mode and application range can be changed according to the idea of the application. In conclusion, the content of the specification should not be understood as a limitation of the application.

Claims

1. A water turbine, characterized in that: It includes a fixed housing, a first drive shaft, a fixed disk, two rotating disks, and several blades; The first drive shaft is used for transmission connection with a generator or engine. The first drive shaft is rotatably disposed inside the fixed housing around a first axis. Both of the rotating disks are fixedly sleeved on the first drive shaft. The fixed disk is sleeved outside the first drive shaft. The fixed disk is fixedly connected to the fixed housing and is placed between the two rotating disks. The fixed plate is provided with a cam guide rail, one end of which is a protruding end and the other end of which is a base end. The cam guide rail is provided with a plurality of annular sliders, which can slide along the cam guide rail. The rotating disk is equipped with a swing transmission component, which can rotate with the rotating disk. Each of the blades is arranged around the first drive shaft, one end of each blade is hinged to the outer edge of one of the rotating disks, and the other end of each blade is hinged to the outer edge of the other rotating disk; The number of the swing transmission components, the number of the annular sliders, and the number of the blades are equal. The swing transmission components, the annular sliders, and the blades correspond one-to-one. One end of the swing transmission component is connected to the annular slider, and the other end of the swing transmission component is connected to the blade. When the annular slider moves to the protruding end, it can drive the corresponding blade to swing outward and extend. When the annular slider moves to the base end, it can drive the corresponding blade to swing inward and retract.

2. The water turbine according to claim 1, characterized in that: The protruding end is a first arc segment, and the base end is a second arc segment. The protruding end and the base end are smoothly connected. The center of the protruding end coincides with the center of the base end, and the radius of the protruding end is greater than the radius of the base end.

3. The water turbine according to claim 1, characterized in that: The fixed shell is fitted with a rotating shell, which is fixedly connected to the rotating disk. A support bearing is provided between the rotating shell and the fixed shell. The inner ring of the support bearing is fixedly connected to the fixed shell, and the outer ring of the support bearing is fixedly connected to the rotating shell.

4. The water turbine according to claim 1, characterized in that: The oscillating transmission assembly includes a bracket, a radial slider, a radial slide rod, a radial slide rail, and an oscillating rod. The bracket is connected to the annular slider. The radial slide rail is disposed on the rotating disk. The radial slider is connected to the bracket and disposed on the radial slide rail. The radial slider is connected to the inner end of the radial slide rod. Both the radial slider and the radial slide rod can move radially along the radial slide rail on the rotating disk. The outer end of the radial slide rod is hinged to the first end of the oscillating rod, and the second end of the oscillating rod is hinged to the blade.

5. The water turbine according to claim 4, characterized in that: The radial slider is equipped with a radial pulley.

6. The water turbine according to claim 4, characterized in that: A positioning bearing is provided on the outer edge of the rotating disk, and a swing bearing is provided on the second end of the swing rod. A central shaft and a swing shaft are provided at both ends of the blade. The central shaft is connected to the positioning bearing, and the swing shaft is connected to the swing bearing.

7. The water turbine according to claim 1, characterized in that: The blade is an arc-shaped plate.

8. The water turbine according to claim 1, characterized in that: The annular slider is provided with two annular pulleys, which are symmetrically arranged on both sides of the cam guide rail, and both annular pulleys are in contact with the cam guide rail.

9. A hydroelectric power generation device, characterized in that: It includes a generator and a water turbine as described in any one of claims 1-8.

10. A ship, characterized in that: The device includes an engine and a water turbine as described in any one of claims 1-8. A second drive shaft is further provided between the drive shaft of the engine and the first drive shaft of the water turbine. The drive shaft of the engine is parallel to the first drive shaft of the water turbine, and the second drive shaft is perpendicular to the drive shaft of the engine. A first bevel gear is fixedly provided at the output end of the drive shaft of the engine, a second bevel gear is fixedly provided at the input end of the second drive shaft, a third bevel gear is fixedly provided at the output end of the second drive shaft, and a fourth bevel gear is fixedly provided at the input end of the first drive shaft of the water turbine. The first bevel gear meshes with the second bevel gear, and the third bevel gear meshes with the fourth bevel gear.

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