Drum-type power generation and water pumping system for intercepting river or ocean current

Abstract

The invention relates to the technical field of hydroelectric generation, and discloses a drum-type power generation and water pumping system for intercepting river or ocean current. Comprising a roller, a flange, a blade, a front end cover, a rear end cover, a bolt, a screw, an oil filling hole countersunk head screw, a mechanical seal, a framework oil seal, a hollow stator axis, a spline, a screw thread, a spline sleeve, a nut, a movable pin, a transmission shaft, a cable and a movable pin hanging ring. At the same time, a level difference is formed between the upstream water surface and the downstream water surface of the roller, the water flow pushes the blades below the roller to promote the roller to continuously roll, and then the generator or the water pump connected to the two ends of the roller is driven to operate, and meanwhile the lever-like principle is utilized to counteract the counter-acting force of the generator hollow stator axis rotating along with the rotor through the transmission shaft connected with the spline housing. Only the rotor of the generator rotates while the stator is kept static, so that stable power generation is realized.

Description

Technical Field

[0001] This invention relates to the field of hydropower technology, specifically to a drum-type power generation and pumping system for intercepting river or ocean currents. Background Technology

[0002] The Earth is dotted with rivers and ocean currents of varying sizes. These environmentally friendly, clean energy sources contain enormous amounts of energy, with relatively concentrated resources, unlike the dispersed resources of wind and solar power. However, many rivers are unsuitable for large-scale hydroelectric projects, and even ordinary dams cannot be built. Most rivers and ocean currents are characterized by large flows, wide areas, and varying flow velocities. Due to their immense energy, they are difficult to utilize effectively, making development extremely challenging. Current technologies cannot intercept river and ocean currents without dams. Furthermore, most river and ocean current power generation equipment lacks impact resistance; floods are their primary threat, and they cannot withstand the impact and damage of natural disasters such as floods and tsunamis. River and ocean current power generation efficiency is extremely low, lacking commercial development value. Many river and ocean current resources are overlooked due to their immense energy and difficulty in access, resulting in inadequate and wasteful use. This is a major technical challenge facing river and ocean current power generation. Therefore, we propose a drum-type power generation and pumping system for intercepting river or ocean currents to address these problems. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a drum-type power generation and pumping system for intercepting river or ocean currents, thus solving the aforementioned problems.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solution: a drum-type power generation and pumping system for intercepting river or ocean currents, comprising a drum, flange, blades, front end cover, rear end cover, bolts, screws, countersunk screws for oil injection holes, mechanical seal, skeleton oil seal, hollow stator shaft, spline, thread, spline sleeve, nut, movable pin, drive shaft, cable, movable pin eyelet, terminal block, front cable, front fixing post, front drum position adjuster, drive shaft eyelet, side cable, side fixing post, and side drum position adjuster;

[0005] Two generators can be installed at each end of the roller, or only one generator with an extended shaft can be used, and the two roller sections can be installed and connected to the front and rear end covers of the generator. The roller is made of steel pipe and can be set as an integral or multi-section sealed combination. The flange is set at both ends of the roller, and the connection position between the roller and the flange is provided with a misaligned male and female positioning ring, which can realize the sealed combination connection of multi-section rollers or the direct sealed connection of generator and water pump.

[0006] The blades are disposed on the surface of the drum between the two flanges; for a generator whose outer edge is located inside the drum port, its front end cover is connected to the drum flange by bolts, and its rear end cover is connected to the generator housing by screws; for a generator whose outer edge is located outside the drum port, its front end cover is connected to the generator outer rotor by screws, and its rear end cover is connected to the drum flange by bolts.

[0007] The hollow stator shaft can be set independently or shared by two generators on the same coaxial extended shaft with hollow ends. It has a central hole, and the outer edge can be fitted with bearings, snap rings, mechanical seals and skeleton oil seals. The port is provided with splines and threads, and the mechanical seal and skeleton oil seal cavity is provided with oil injection holes.

[0008] Preferably, the spline sleeve is a connecting part between the hollow stator shaft and the drive shaft. The spline of the hollow stator shaft is connected by a nut, and its side is provided with a vertical hole for inserting a movable pin. The drive shaft is connected by the movable pin. The top of the movable pin is provided with a lifting ring and a terminal block. The cable is fixedly connected to the terminal block through the lifting ring.

[0009] The front cable and side cable are nylon ropes, steel wire ropes, or iron chains; the front fixing piles and side fixing piles are concrete anchor points; the front roller position adjuster and side roller position adjuster can adjust the cable.

[0010] Preferably, the drive shaft can be an automotive drive shaft, with one end connected to a front cable, and the other end of the front cable connected to a front roller position adjuster on the front fixed post; a drive shaft hanger is provided on the drive shaft near the movable pin, the drive shaft hanger is connected to a side cable, and the other end of the side cable is connected to a side roller position adjuster on the side fixed post.

[0011] Preferably, the generator may be a permanent magnet generator located inside the drum, a claw pole excitation generator located inside the drum, a claw pole permanent magnet generator located inside the drum, an external rotor permanent magnet generator located inside the drum, or an external rotor claw pole permanent magnet generator located inside the drum.

[0012] Preferably, the generator may also be an external rotor permanent magnet generator located outside the drum, an external rotor brushed permanent magnet generator located inside the drum, an external rotor brushed permanent magnet generator located outside the drum, an external rotor excitation brushed generator located inside the drum, an external rotor excitation brushed generator located outside the drum, an external rotor excitation claw pole brushed generator located inside the drum, an external rotor excitation claw pole brushed generator located outside the drum, and an external rotor claw pole permanent magnet generator located outside the drum.

[0013] Preferably, the generator may also be a permanent magnet generator without a rear end cover located inside the drum, a permanent magnet generator without a rear end cover located outside the drum, a permanent magnet generator without a rear end cover located inside the drum, or a permanent magnet generator without a rear end cover located outside the drum.

[0014] Preferably, the generator may also be a claw-pole excitation generator with a gearbox located outside the drum.

[0015] Preferably, the generator may be a water pump with a gearbox located outside the drum.

[0016] Beneficial effects

[0017] This invention provides a drum-type power generation and pumping system for intercepting river or ocean currents. Compared with existing technologies, it has the following advantages:

[0018] 1. This drum-type power generation and pumping system for intercepting river or ocean currents has a simple structure and is highly practical. The transportation, installation, dismantling and maintenance of the equipment are more convenient. It has outstanding adaptability and is basically not limited by the width of rivers, the depth of ocean currents and regional environment. It can be deployed and applied under various river and ocean current conditions. It can also match different types of generators or pumps according to the specific water flow environment. Its outer edge can be placed inside the drum port or installed outside the port, flexibly adapting to a variety of scenarios.

[0019] 2. By using the buoyancy generated by the sealed drum to support the weight of the drum and generator, and adjusting the four cables connecting the drive shaft and the lifting ring via the drum position adjusters on the four fixed piles, the drum floats relatively fixedly in the water, thus intercepting river or ocean currents. At this time, a drop in water level is formed between the upstream and downstream of the drum, and the water flow pushes the blades below the drum, causing the drum to roll continuously, which in turn drives the generator or water pump connected to both ends of the drum. At the same time, using a lever-like principle, the drive shaft connected to the spline sleeve counteracts the reaction force of the generator's hollow stator shaft rotating with the rotor, ensuring that only the rotor of the generator rotates while the stator remains stationary, thereby stabilizing power generation.

[0020] 3. The blade design is highly targeted: In unidirectional water flow scenarios, the blades are angled to the outer edge of the drum (similar to a sawtooth shape on a disc), effectively reducing water resistance and increasing the drum's rolling speed; in bidirectional water flow scenarios, the blades are perpendicular to the outer edge of the drum, ensuring normal power generation even when the water flow is reversed. Furthermore, it can be directly matched with a low-speed generator without the need for a speed changer, ensuring its power output meets usage requirements; and the generator's low speed and submerged outer edge allow for continuous cooling, eliminating the need for a fan, reducing failure rates and maintenance costs, and helping to extend the equipment's lifespan.

[0021] 4. Due to its large volume, the drum functions similarly to a dam in water, exhibiting strong impact resistance. It can rise and fall with the water level without affecting power generation or pumping operations, and can withstand the impact of general floods and natural disasters such as tsunamis. During operation, not only the drum blades bear the force, but the entire drum also bears the force of the water flow over a large area, giving it the function of blades as well. This generates enormous inertial force and kinetic energy, significantly improving power generation efficiency and enabling the efficient utilization of river and ocean current resources, thus providing possibilities for large-scale, high-power power generation.

[0022] 5. Without requiring massive investment of manpower, resources, and capital to construct large-scale water conservancy projects, it can generate considerable electrical energy, representing an important direction for the future development and utilization of river and ocean current resources, with broad market prospects. Furthermore, the equipment has a wide range of applications; by replacing the generator with a water pump, it can be directly used for large-scale farmland irrigation, truly achieving multiple uses for one device, benefiting the country and its people. Compared to traditional waterwheel power generation, wind power, and solar power generation, it has significant development advantages. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the drum-type power generation system structure of the generator in the drum of the present invention;

[0024] Figure 2 This is a schematic diagram of the drum-type power generation system structure of the present invention, with the generator located outside the drum.

[0025] Figure 3 This is an exploded view of the spline sleeve device of the present invention;

[0026] Figure 4 This is a cross-sectional view of the permanent magnet generator inside the drum according to the present invention;

[0027] Figure 5 This is a cross-sectional view of the claw-pole excitation generator inside the drum according to the present invention;

[0028] Figure 6 This is a cross-sectional view of the claw-pole permanent magnet generator inside the drum according to the present invention;

[0029] Figure 7 This is a cross-sectional view of the external rotor permanent magnet generator inside the drum according to the present invention;

[0030] Figure 8 This is a cross-sectional view of the external rotor claw pole permanent magnet generator inside the drum according to the present invention;

[0031] Figure 9 This is a cross-sectional view of the external rotor permanent magnet generator outside the drum of the present invention;

[0032] Figure 10 This is a cross-sectional view of the external rotor brushed permanent magnet generator inside the drum of the present invention;

[0033] Figure 11This is a cross-sectional view of the external rotor brushed permanent magnet generator outside the drum of the present invention;

[0034] Figure 12 This is a cross-sectional view of the external rotor excitation brushed generator inside the drum according to the present invention;

[0035] Figure 13 This is a cross-sectional view of the external rotor excitation brushed generator outside the drum of the present invention;

[0036] Figure 14 This is a cross-sectional view of the external rotor excitation claw pole brushed generator inside the drum according to the present invention;

[0037] Figure 15 This is a cross-sectional view of the brushed generator with external rotor excitation claw poles outside the drum, as described in this invention.

[0038] Figure 16 This is a cross-sectional view of the external rotor claw pole permanent magnet generator outside the drum of the present invention;

[0039] Figure 17 This is a cross-sectional view of the external rotor permanent magnet generator without a rear end cover inside the drum according to the present invention;

[0040] Figure 18 This is a cross-sectional view of the external rotor permanent magnet generator without a rear end cover outside the drum according to the present invention;

[0041] Figure 19 This is a cross-sectional view of the external rotor claw pole permanent magnet generator without a rear end cover inside the drum according to the present invention;

[0042] Figure 20 This is a cross-sectional view of the external rotor claw pole permanent magnet generator without a rear end cover outside the drum according to the present invention;

[0043] Figure 21 This is a cross-sectional view of the claw-pole excitation generator with gearbox outside the drum according to the present invention;

[0044] Figure 22 This is a cross-sectional view of the water pump with a gearbox outside the drum according to the present invention.

[0045] Figure 1-2 In the middle section: 1. Drum; 2. Blade; 3. Flange; 4. Front and rear end covers; 5. Bolt; 6. Countersunk screw for oil filling hole; 7. Movable pin; 8. Lifting eye; 9. Lifting eye; 10. Terminal block; 11. Drive shaft; 12. Cable; 13. Hollow stator shaft; 14. Nut; 15. Spline sleeve; 16. Mechanical seal and oil seal; 17. Front drum position adjuster; 18. Front fixing post; 19. Front cable; 20. Side drum position adjuster; 21. Side cable; 22. Side fixing post; 23. Outer rotor; 24. Front end cover; 25. Screw; 26. Generator. Detailed Implementation

[0046] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0047] like Figure 1-2 As shown:

[0048] A drum-type power generation and pumping system for intercepting river or ocean currents includes a drum 1, blades 2, flanges 3, front and rear end covers 4, bolts 5, countersunk screws for oil filling holes 6, movable pins 7, lifting rings 8 and 9, terminal blocks 10, drive shaft 11, cable 12, hollow stator shaft 13, nut 14, spline sleeve 15, mechanical seal and oil seal 16, front drum position adjuster 17, front fixing post 18, front cable 19, side drum position adjuster 20, side cable 21, side fixing post 22, outer rotor 23, front end cover 24, screws 25, and generator 26. The drum 1 is made of steel pipe material. The drum 1 can be made as a single piece, welded from multiple sections of steel pipe. For ease of transportation, installation, and disassembly, it can also be composed of multiple sections of drum 1 connected in a sealed assembly. It can be lengthened as needed. The length of roller 1 is shortened, and flanges 3 are placed at both ends of roller 1. Misaligned male and female positioning rings are provided at the connection points between roller 1 and flanges 3. Multiple sections of roller 1 can be sealed and connected together, or a generator or water pump with its outer edge inside the roller port can be directly sealed and connected. Blades 2 are placed on the surface of roller 1 between the two flanges 3. The front cover 4 is connected to the roller flanges 3 by bolts 5, and the rear cover is connected to the generator housing by screws. The hollow stator shaft 13 can be set independently, or two generators can share a single extended shaft 13 with hollow ends. The roller 1's rolling operation is more stable. The hollow stator shaft 13 has a central hole from which cable 12 is led out. Water can enter the central hole cavity to help cool the stator. Bearings, external shaft retaining rings, machine seals, and skeleton oil seals 16 can be installed on its outer edge. The port is equipped with splines 17 and threads 18 (e.g., ...). Figure 4 As shown), the machine seal and the skeleton oil seal 16 have oil filling holes on their outer surfaces for installing countersunk screws 6. The spline sleeve 15 is a connecting piece between the hollow stator shaft 13 and the drive shaft 11, and is connected to the spline of the hollow stator shaft 13 by a nut 14. The side of the spline sleeve 15 has a vertical hole 2 for inserting a movable pin 7 (as shown). Figure 3As shown, the drive shaft 11 is connected by inserting a movable pin 7. The top of the movable pin 7 is provided with a lifting ring 9 and a terminal block 10. The cable 12 is fixedly connected to the terminal block 10 through the lifting ring 9. The front cable 19 and the side cable 21 can be nylon rope, steel wire rope, or iron chain. The front fixing post 18 and the side fixing post 22 are anchor points cast with concrete. The front roller position adjuster 17 and the side roller position adjuster 20 can adjust the cable. The drive shaft 11 is similar to a car drive shaft. The other end of the drive shaft 11 is connected to the front cable 19. The other end of the front cable 19 is connected to the front roller position adjuster 17 on the front fixing post 18. The drive shaft 11 near the movable pin 7 is provided with a drive shaft lifting ring 8. The drive shaft lifting ring 8 is connected to the side cable 21. The other end of the side cable 21 is connected to the side roller position adjuster 20 on the side fixing post 22.

[0049] like Figure 3 As shown: The spline sleeve assembly includes a spline sleeve 1, a vertical hole 2, a drive shaft 3, a movable pin 4, a lifting ring 5, a nut 6, a lifting ring 7, and a terminal block 8. The spline sleeve 1 is a connector between the hollow stator shaft and the drive shaft 3. Its side is provided with a vertical hole 2 into which the movable pin 4 can be inserted. The vertical hole 2 is used to install the movable pin 4. The drive shaft 3 is similar to an automobile drive shaft. One end is connected to the spline sleeve 1 through the movable pin 4, and the other end is connected to a cable. The movable pin 4 is used to connect the spline sleeve 1 and the drive shaft 3. Its top is provided with a lifting ring 7 and a terminal block 8. The lifting ring 7 is used to fix the cable, the terminal block 8 is used to connect the cable, and the lifting ring 5 is used to connect the side cable.

[0050] Cable management: Cable 12 is led out from the center hole of hollow stator shaft 13 and fixed to terminal 10 by the lifting ring 9 of movable pin 7 to avoid damage caused by water flow impact;

[0051] like Figure 4As shown: The permanent magnet generator inside the drum includes screw 1, stator generating coil 2, rear end cover 3, cable 4, bearing 5, cable seal 6, screw hole 7, front end cover 8, permanent magnet rotor 9, inner retaining ring 10, bearing 11, outer retaining ring 12, mechanical seal 13, countersunk screw for oil injection hole 14, skeleton oil seal 15, hollow stator shaft 16, spline 17, and thread 18. The rear end cover 3 is fixedly connected to the stator generating coil 2 by screw 1. The center of the rear end cover 3... A hollow stator shaft 16 is provided with a central hole. One end of the hollow stator shaft 16 is installed in the central hole of the rear end cover 3, and the two can be integrated when machining conditions permit. The hollow stator shaft 16 has a concave snap ring groove and a central hole. The end is provided with a spline 17 and a thread 18. The cable 4 is led out from the central hole. The cable seal 6 is placed at the rear end of the hollow stator shaft 16 to ensure a seal. Water can enter into the central hole cavity to efficiently cool the stator generator coil 2 to maintain its stable working state. Bearings 5 ​​and 6 are installed sequentially on its outer edge. 11. The outer retaining ring 12, mechanical seal 13, and skeleton oil seal 15 are used to fix the permanent magnet rotor 9. The front cover 8 is separated from the stator generator coil 2 and is connected to the permanent magnet rotor 9. The permanent magnet rotor 9 has a bearing seat at its center. The bearing seat has a convex retaining ring groove and a bearing 5, an inner retaining ring 10, and a bearing 11 are installed in sequence. The mechanical seal 13 and skeleton oil seal 15 are installed in the front cavity of the front cover 8 to prevent water from entering the interior and affecting the operation of the components. An oil injection hole is provided outside the cavity for installing an oil injection hole countersunk screw 14. The screw hole 7 is used for sealing connection with the drum flange to achieve overall fixation. The inner retaining ring 10 and the outer retaining ring 12 are used to fix the bearing 11 to ensure the stability of the rotor when it rotates. When the drum drives the permanent magnet rotor 9 to rotate, the permanent magnet rotor 9 and the stator generator coil 2 generate relative motion to cut the magnetic field lines, thereby realizing electromagnetic induction power generation. The entire structure ensures the efficient and stable operation of the generator in the underwater environment through reasonable sealing, cooling and fixing design.

[0052] like Figure 5As shown: The claw-pole excitation generator inside the drum includes screw 1, stator generating coil 2, rear end cover 3, stator generating coil cable 4, excitation coil 5, excitation coil cable 6, screw 7, bearing 8, cable seal 9, screw hole 10, front end cover 11, claw-pole rotor 12, inner retaining ring 13, bearing 14, outer retaining ring 15, mechanical seal 16, countersunk screw for oil injection hole 17, skeleton oil seal 18, hollow stator shaft 19, spline 20, and thread 21. The rear end cover 3 is fixedly connected to the stator generating coil 2 by screw 1. The rear end cover 3 has a central hole. One end of the hollow stator shaft 19 is installed in the central hole of the rear end cover 3, and the two can be integrated under certain processing conditions. The excitation coil 5 is connected to the rear end cover 3 by screw 7. The hollow stator shaft 19 has a concave retaining ring groove and a central hole, and its end has a spline 20 and thread 21. The stator generating coil cable 4 and the excitation coil cable 6 are led out from the central hole. The seal 9 is placed at the rear port of the hollow stator shaft 19 to ensure sealing performance. Water can enter the central cavity to efficiently cool the stator generating coil 2 and maintain its stable operating temperature. The outer edge is sequentially equipped with bearing 8, bearing 14, outer shaft retaining circlip 15, mechanical seal 16, and skeleton oil seal 18. The front cover 11 is separated from the stator generating coil 2. The center of the front cover 11 is provided with a bearing seat. The bearing seat is provided with a convex retaining circlip groove and bearing 8, inner retaining ring circlip 13, and bearing 14 are sequentially installed. The mechanical seal 16 and skeleton oil seal 18 are installed in the front cavity of the front cover 11 to prevent water from entering the internal components. An oil injection hole is provided outside the cavity for installing the oil injection hole countersunk screw 17. The claw pole rotor 12 is installed on the outer edge of the bearing seat and can be integrated with the front cover 11 when processing conditions are available. The screw hole 10 is used for sealing connection with the drum flange to achieve overall fixation. The inner retaining ring circlip 13 and the outer shaft retaining circlip 15 are used to fix the bearing 14 to ensure the stability of the rotor rotation.

[0053] like Figure 6As shown: The claw-pole permanent magnet generator inside the drum includes a permanent magnet stator 1, screws 2, claw-pole rotor 3, rear end cover 4, stator generating coil 5, screws 6, bearings 7, cable 8, cable seal 9, screw hole 10, front end cover 11, inner retaining ring 12, bearing 13, outer retaining ring 14, mechanical seal 15, countersunk screw for oil injection hole 16, skeleton oil seal 17, hollow stator shaft 18, spline 19, and thread 20. The permanent magnet stator 1 is fixedly connected to the rear end cover 4 by screws 2. The rear end cover 4 has a central hole. One end of the hollow stator shaft 18 is installed in the central hole of the rear end cover 4, and the two can be integrated under certain processing conditions. The stator generating coil 5 is connected to the rear end cover 4 by screws 6. The hollow stator shaft 18 has a concave retaining ring groove and a central hole, and its end has a spline 19 and thread 20. The cable 8 is led out from the central hole, and the cable seal 9 is placed on the hollow stator shaft 18. The rear port is sealed, and water can enter the central cavity to efficiently cool the permanent magnet stator 1 and maintain its magnetic performance. The outer edge is sequentially equipped with bearing 7, bearing 13, outer retaining ring 14, mechanical seal 15, and skeleton oil seal 17. The front cover 11 is separated from the permanent magnet stator 1. The front cover 11 has a bearing seat in the center. The bearing seat has a convex retaining ring groove and bearing 7, inner retaining ring 12, and bearing 13 are sequentially installed. The mechanical seal 15 and skeleton oil seal 17 are installed in the front cavity of the front cover 11 to prevent water from entering the interior and affecting the operation of the components. An oil injection hole is provided outside the cavity for installing the countersunk screw 16 for the oil injection hole. The claw pole rotor 3 is installed on the outer edge of the bearing seat and can be integrated with the front cover 11 when processing conditions are available. The screw hole 10 is used for sealing connection with the drum flange to achieve overall fixation. The inner retaining ring 12 and outer retaining ring 14 are used to fix the bearing 13 to ensure the stability of the rotor during rotation.

[0054] like Figure 7As shown: The external rotor permanent magnet generator inside the drum includes a permanent magnet external rotor 1, screws 2, a rear end cover 3, a stator generating coil 4, a cable 5, a bearing 6, a screw hole 7, a front end cover 8, a flat key pin 9, a bearing 10, a mechanical seal 11, an oil injection hole countersunk screw 12, a skeleton oil seal 13, a hollow stator shaft 14, a spline 15, and a thread 16. The permanent magnet external rotor 1 is fixedly connected to the rear end cover 3 and the front end cover 8 by screws 2. The rear end cover 3 has a bearing seat in the center for installing the bearing 6. The hollow stator shaft 14 has a center hole and a spline 15 and a thread 16 at its end. The cable 5... Water is introduced into the central hole to efficiently cool the stator generating coil 4. The outer edge of the central hole is sequentially equipped with bearing 6, key pin 9, stator generating coil 4, bearing 10, mechanical seal 11, and skeleton oil seal 13. The stator generating coil 4 is fixed to the outer edge of the hollow stator shaft 14 by key pin 9. The center of the front end cover 8 is provided with a bearing seat for installing bearing 10. The mechanical seal 11 and skeleton oil seal 13 are installed in the front cavity of the front end cover 8 to prevent water intrusion. An oil injection hole is provided outside the cavity for installing countersunk screw 12 for oil injection hole. The screw hole 7 is used for sealing connection with the drum flange to achieve overall fixation.

[0055] like Figure 8 As shown: The external rotor claw-pole permanent magnet generator inside the drum includes a permanent magnet external rotor 1, screws 2, rear end cover 3, claw-pole stator generating coils 4, cable 5, bearing 6, screw hole 7, front end cover 8, flat key pin 9, bearing 10, mechanical seal 11, oil injection hole countersunk screw 12, skeleton oil seal 13, hollow stator shaft 14, spline 15, thread 16, and is connected to as shown Figure 6 The same applies as shown;

[0056] like Figure 9 As shown: The external rotor permanent magnet generator outside the drum includes screw hole 1, screw 2, rear end cover 3, stator generating coil 4, cable 5, bearing 6, permanent magnet external rotor 7, O-ring seal 8, front end cover 9, flat key pin 10, bearing 11, mechanical seal 12, oil injection hole countersunk screw 13, skeleton oil seal 14, hollow stator shaft 15, spline 16, thread 17;

[0057] like Figure 10As shown: The external rotor brushed permanent magnet generator inside the drum includes an external rotor generating coil 1, a rear end cover 2, screws 3, cables 4, carbon brushes 5, slip rings 6, bearings 7, screw holes 8, a front end cover 9, a permanent magnet stator 10, a flat key pin 11, bearings 12, a mechanical seal 13, countersunk screws for oil injection holes 14, a skeleton oil seal 15, a hollow stator shaft 16, a spline 17, and threads 18. The external rotor generating coil 1 is fixed between the rear end cover 2 and the front end cover 9 by screws 3. The rear end cover 2 has a bearing seat in the center for mounting the bearing 7 and carbon brushes 5 on the side. The hollow stator shaft 16 has a center hole and a spline 1 at the end. 7 and threaded 18, cable 4 is led out from the central hole through carbon brush 5 and slip ring 6. Water can enter the central hole cavity to cool the permanent magnet stator 10. The outer edge of the stator is sequentially installed with bearing 7, slip ring 6, flat key pin 11, permanent magnet stator 10, bearing 12, mechanical seal 13, and skeleton oil seal 15. The permanent magnet stator 10 is fixed to the outer edge of the hollow stator shaft 16 by flat key pin 11. The center of the front end cover 9 is provided with a bearing seat for installing bearing 12. The mechanical seal 13 and skeleton oil seal 15 are installed in the front cavity of the front end cover 9. The cavity is provided with an oil injection hole for installing oil injection hole countersunk screw 14. The screw hole 8 is used for sealing connection with the drum flange.

[0058] like Figure 11 As shown: The outer rotor of the brushed permanent magnet generator outside the drum includes screw hole 1, screw 2, rear end cover 3, cable 4, carbon brush 5, slip ring 6, bearing 7, outer rotor generator coil 8, O-ring seal 9, front end cover 10, permanent magnet stator 11, flat key pin 12, bearing 13, mechanical seal 14, oil injection hole countersunk screw 15, skeleton oil seal 16, hollow stator shaft 17, spline 18, thread 19, and is connected to as follows Figure 10 The same applies as shown;

[0059] like Figure 12As shown: The external rotor excitation brushed generator inside the drum includes an external rotor excitation coil 1, a rear end cover 2, screws 3, an external rotor excitation coil cable 4, a stator generator coil cable 5, carbon brushes 6, slip rings 7, bearings 8, screw holes 9, a front end cover 10, a stator generator coil 11, a flat key pin 12, a bearing 13, a mechanical seal 14, a countersunk screw for the oil injection hole 15, a skeleton oil seal 16, a hollow stator shaft 17, a spline 18, and threads 19. The external rotor excitation coil 1 is fixed between the rear end cover 2 and the front end cover 10 by screws 3. The rear end cover 2 has a bearing seat in the center for mounting the bearing 8 and carbon brushes 6 on the side. The hollow stator shaft 17 has a center hole and a spline 18 at the end. With thread 19, the external rotor excitation coil cable 4 is led out from the central hole through carbon brush 6, slip ring 7 and stator generator coil cable 5. Water can enter the central hole cavity to cool the stator generator coil 11. The outer edge is sequentially installed with bearing 8, slip ring 7, flat key pin 12, stator generator coil 11, bearing 13, mechanical seal 14 and skeleton oil seal 16. The stator generator coil 11 is fixed to the outer edge of the hollow stator shaft 17 by flat key pin 12. The center of the front end cover 10 is provided with a bearing seat for installing bearing 13. The mechanical seal 14 and skeleton oil seal 16 are installed in the front cavity of the front end cover 10. The cavity is provided with an oil injection hole for installing oil injection hole countersunk screw 15. The screw hole 9 is used for sealing connection with the drum flange.

[0060] like Figure 13 As shown: The external rotor excitation brushed generator outside the drum includes a screw hole 1, a screw 2, a rear end cover 3, an external rotor excitation coil cable 4, a stator generator coil cable 5, a carbon brush 6, a slip ring 7, a bearing 8, an external rotor excitation coil 9, an O-ring seal 10, a front end cover 11, a stator generator coil 12, a key pin 13, a bearing 14, a mechanical seal 15, a countersunk screw for the oil injection hole 16, a skeleton oil seal 17, a hollow stator shaft 18, a spline 19, and a thread 20, and is connected to, as shown... Figure 12 The same applies as shown;

[0061] like Figure 14As shown: The external rotor excitation claw pole brushed generator inside the drum includes an external rotor excitation coil 1, a rear end cover 2, screws 3, an external rotor excitation coil cable 4, a claw pole stator generator coil cable 5, carbon brushes 6, slip rings 7, bearings 8, screw holes 9, a front end cover 10, a claw pole stator generator coil 11, a flat key pin 12, a bearing 13, a mechanical seal 14, an oil injection hole countersunk screw 15, a skeleton oil seal 16, a hollow stator shaft 17, a spline 18, and threads 19. The external rotor excitation coil 1 is fixed between the rear end cover 2 and the front end cover 10 by screws 3. The rear end cover 2 has a bearing seat in the center for mounting the bearing 8 and carbon brushes 6 on its side. The hollow stator shaft 17 has a center hole and splines 18 and threads 19 at its ends. The external rotor excitation coil cable 4 passes through the carbon brushes 6, slip rings 7, and... The claw pole stator generator coil cable 5 is led out from the central hole. Water can enter the central hole cavity to cool the claw pole stator generator coil 11. The outer edge of the coil is sequentially equipped with bearing 8, slip ring 7, flat key pin 12, claw pole stator generator coil 11, bearing 13, mechanical seal 14, and skeleton oil seal 16. The claw pole stator generator coil 11 is divided into left and right claw poles and the generator coil is fixed in the middle. Both claw poles are provided with central holes. The hollow stator shaft 17 is fixed in the central hole by the flat key pin 12. The left claw pole and the hollow stator shaft 17 can be connected together when there are machining conditions. The front end cover 10 has a bearing seat in the center for installing bearing 13. The mechanical seal 14 and skeleton oil seal 16 are installed in the front cavity of the front end cover 10. The cavity is provided with an oil injection hole for installing oil injection hole countersunk screw 15. The screw hole 9 is used for sealing connection with the drum flange.

[0062] like Figure 15 As shown: The external rotor excitation claw pole brushed generator outside the drum includes a screw hole 1, a screw 2, a rear end cover 3, an external rotor excitation coil cable 4, a claw pole stator generator coil cable 5, a carbon brush 6, a slip ring 7, a bearing 8, an external rotor excitation coil 9, an O-ring seal 10, a front end cover 11, a claw pole stator generator coil 12, a flat key pin 13, a bearing 14, a mechanical seal 15, a countersunk screw for the oil injection hole 16, a skeleton oil seal 17, a hollow stator shaft 18, a spline 19, and a thread 20, and is connected to, as shown in the figure Figure 14 The same applies as shown;

[0063] like Figure 16 As shown: The external rotor claw pole permanent magnet generator outside the drum includes screw hole 1, screw 2, rear end cover 3, claw pole stator generating coil 4, cable 5, bearing 6, permanent magnet external rotor 7, O-ring seal 8, front end cover 9, flat key pin 10, bearing 11, mechanical seal 12, oil injection hole countersunk screw 13, skeleton oil seal 14, hollow stator shaft 15, spline 16, thread 17;

[0064] like Figure 17As shown: The permanent magnet generator without a rear end cover inside the drum includes a permanent magnet external rotor 1, a stator generating coil 2, a cable 3, bolts 4, a T-shaped hollow stator shaft 5, a bearing 6, a cable seal 7, screw holes 8, screws 9, a front end cover 10, an inner retaining ring 11, a bearing 12, an outer retaining ring 13, a mechanical seal 14, a countersunk screw for oil injection holes 15, a skeleton oil seal 16, a spline 17, and threads 18. The permanent magnet external rotor 1 is fixedly connected to the front end cover 10 by screws 9, and the permanent magnet external rotor 1 and the front end cover 10 can be integrated when processing conditions permit. The front end cover 10 has a bearing seat at its center, and the bearing seat has a convex retaining ring groove in which bearings 6 are installed in sequence. The structure includes an inner retaining ring 11, a bearing 12, a mechanical seal 14 and a skeleton oil seal 16 installed inside the front cavity of the front cover 10, an oil injection hole for installing an oil injection countersunk screw 15, and a screw hole 8 for sealing connection with the drum flange. The T-shaped hollow stator shaft 5 has a center hole and a spline 17 and a thread 18 at its end. The cable 3 is led out from the center hole, and its T-shaped end is fixedly connected to the stator generating coil 2 by bolts 4. The cable seal 7 is placed at the rear end of the T-shaped hollow stator shaft 5. Water can enter the center hole cavity to cool the stator generating coil 2. Its outer edge is sequentially installed with a bearing 6, a bearing 12, an outer retaining ring 13, a mechanical seal 14, and a skeleton oil seal 16.

[0065] like Figure 18 As shown: The external rotor permanent magnet generator without a rear end cover outside the drum includes a screw hole 1, a stator generating coil 2, a cable 3, a bolt 4, a T-shaped hollow stator shaft 5, a bearing 6, a cable seal 7, a permanent magnet external rotor 8, a screw 9, an O-ring seal 10, a front end cover 11, an inner retaining ring 12, a bearing 13, an outer retaining ring 14, a mechanical seal 15, a countersunk screw for the oil injection hole 16, a skeleton oil seal 17, a spline 18, and a thread 19, and is connected to, as shown in the figure Figure 17 The same applies as shown;

[0066] like Figure 19As shown: The permanent magnet generator without a rear end cover, consisting of an external rotor claw pole permanent magnet generator 1, claw pole stator generating coils 2, cables 3, bearings 4, cable seals 5, screw holes 6, screws 7, a front end cover 8, screws 9, an inner retaining ring 10, bearings 11, an outer retaining ring 12, a mechanical seal 13, countersunk screws for oil injection holes 14, a skeleton oil seal 15, a hollow stator shaft 16, a spline 17, and threads 18. The front end cover 8 is fixedly connected to the external rotor 1 by screws 7, and the front end cover 8 and the external rotor 1 can be integrated when processing conditions permit. The front end cover 8 has a bearing seat at its center, and the bearing seat has a convex retaining ring groove in which bearings 4, inner retaining ring 10, and bearings 11 are installed in sequence. The mechanical seal 13 and the skeleton are installed in the front cavity of the front end cover 8. Oil seal 15, with an oil injection hole on the outside for installing countersunk screw 14, screw hole 6 for sealing connection with roller flange, claw pole stator generator coil 2 is divided into left and right claw poles and the generator coil is fixed in the middle, the left claw pole is provided with claw pole seat and center hole, the right claw pole is fixedly connected to the left claw pole seat by screw 9, one end of hollow stator shaft 16 is fixedly installed in the center hole of the left claw pole and the two can be connected together when processing conditions are available, hollow stator shaft 16 is provided with center hole and the port is provided with spline 17 and thread 18, cable 3 is led out from the center hole, cable seal 5 is placed at the rear port of hollow stator shaft 16, water can enter the center hole cavity to cool claw pole stator generator coil 2, its outer edge is sequentially installed with bearing 4, bearing 11, outer shaft retaining spring 12, mechanical seal 13, skeleton oil seal 15;

[0067] like Figure 20 As shown: The external rotor claw-pole permanent magnet generator without a rear end cover outside the drum includes a screw hole 1, claw-pole stator generating coils 2, cable 3, bearing 4, cable seal 5, permanent magnet external rotor 6, screw 7, O-ring seal 8, front end cover 9, screw 10, inner retaining ring 11, bearing 12, outer retaining ring 13, mechanical seal 14, countersunk screw for oil injection hole 15, skeleton oil seal 16, hollow stator shaft 17, spline 18, thread 19, and is connected to as follows Figure 19 The same applies as shown;

[0068] like Figure 21As shown: The claw-pole excitation generator with gearbox outside the drum includes a screw hole 1, flange 2, stator generating coil 3, generator front end cover 4, screw 5, skeleton oil seal 6, outer clamping circlip 7, bearing 8, pressure box housing 9, oil injection hole screw 10, pinion 11, cable 12, claw pole 13, excitation coil 14, bearing 15, rotor shaft 16, screw 17, rear end cover 18, screw 19, skeleton oil seal 20, outer clamping circlip 21, pressure box shaft 22, flat key pin 23, pressure box rear end cover 24, bearing 25, large gear 26, screw 27, and oil drain hole screw 28. Flange 2 is fixedly connected to the drum flange through screw hole 1. The center hole of flange 2 is used to install the pressure box shaft 22. The outer edge of the pressure box shaft 22 has a concave circlip groove (for installing the outer clamping circlip 21) and a flat key pin 23. The skeleton oil seal 20, bearing, and outer clamping circlip are installed sequentially on the outer edge. The shaft uses a snap ring 21, a flat key pin 23, a large gear 26, and a bearing 25. The pressure box 9 is integrated with the front cover of the pressure box. The central bearing seat is equipped with a bearing and a skeleton oil seal 20. The side drive shaft connection end is provided with a vertical hole. The top oil injection hole is equipped with an oil injection screw 10, and the bottom oil drain hole is equipped with an oil drain screw 28. The pressure box is fixedly connected to the rear cover 24 by screws 27. The rear cover 24 is equipped with a bearing seat and a bearing 25. The stator generator coil 3 is fixedly connected to the front cover 4 and the rear cover 18 by screws 19. The rear cover 18 is provided with an excitation coil seat (the excitation coil 14 is fixed by screws 17), a line output hole (the cable 12 is led out), and a bearing seat (bearing 15 is installed). One end of the rotor shaft 16 is provided with a small gear 11. The outer edge is sequentially equipped with a bearing 8, an outer snap ring 7, a skeleton oil seal 6, a claw pole 13, and a bearing 15. The generator front cover 4 is fixedly connected to the rear cover 24 of the pressure box by screws 5.

[0069] like Figure 22As shown: The water pump with gearbox outside the drum includes screw hole 1, flange 2, oil injection hole screw 3, pressure box housing 4, large gear 5, bearing 6, skeleton oil seal 7, screw 8, rear end cover 9, outer clamping circlip 10, flat key pin 11, pressure box shaft 12, water outlet 13, screw 14, oil injection hole screw 15, impeller 16, mechanical seal 17, skeleton oil seal 18, nut washer 19, nut 20, impeller shaft 21, pump body 22, pinion 23, oil drain hole screw 24, bearing 25, sealing ring 26, screw 27, pump cover 28, screw 29, flat key pin 30. Flange 2 is fixedly connected to the drum flange through screw hole 1. The center hole of flange 2 is used to install the pressure box shaft 12. The outer edge of the pressure box shaft 12 has a concave circlip groove (for installing the outer clamping shaft). The outer edge is sequentially fitted with a retaining ring 10 and a keyway (for installing a key pin 11). A skeleton oil seal 7, a bearing 6, a retaining ring 10 for the outer shaft, a key pin 11, a large gear 5, and a bearing are installed. The pressure chamber housing 4 is integrated with the pressure chamber front end cover. The central bearing seat is fitted with the bearing 6 and the skeleton oil seal 7. A vertical hole (for installing a fixing pin) is provided at the side drive shaft connection end. An oil injection hole screw 3 is installed at the top oil injection hole, and an oil drainage hole screw 24 is installed at the bottom oil drainage hole. The pressure chamber housing 4 is fixedly connected to the rear end cover 9 by screws 8. The rear end cover 9 has a bearing installed in its central bearing seat. The outlet 13 is fixedly connected to the pump body 22 by screws 14. The pump body 22 is fixedly connected to the pump cover 28 by screws 29. The pump cover 28 is fixedly connected to the pressure chamber rear end cover 9 by screws 27 and to the pump body 22 by screws 29. The pump body 22 has an internal impeller 16.

[0070] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A drum-type power generation and pumping system for intercepting river or ocean currents, characterized in that: Includes rollers, flanges, blades, front end cover, rear end cover, bolts, screws, countersunk screws for oil injection holes, mechanical seals, skeleton oil seals, hollow stator shafts, splines, threads, spline sleeves, nuts, movable pins, drive shafts, cables, movable pin eyelets, terminals, front cables, front fixing posts, front roller position adjusters, drive shaft eyelets, side cables, side fixing posts, and side roller position adjusters; Two generators can be installed at each end of the roller, or only one generator with an extended shaft can be used, and the two roller sections can be installed and connected to the front and rear end covers of the generator. The roller is made of steel pipe and can be set as an integral or multi-section sealed combination. The flange is set at both ends of the roller, and the connection position between the roller and the flange is provided with a misaligned male and female positioning ring, which can realize the sealed combination connection of multi-section rollers or the direct sealed connection of generator and water pump. The blades are disposed on the surface of the drum between the two flanges; for a generator whose outer edge is located inside the drum port, its front end cover is connected to the drum flange by bolts, and its rear end cover is connected to the generator housing by screws; for a generator whose outer edge is located outside the drum port, its front end cover is connected to the generator outer rotor by screws, and its rear end cover is connected to the drum flange by bolts. The hollow stator shaft can be set independently or shared by two generators on the same coaxial extended shaft with hollow ends. It has a central hole, and the outer edge can be used to install bearings, snap rings, mechanical seals and skeleton oil seals. The port is provided with splines and threads, and the mechanical seal and skeleton oil seal cavity is provided with oil injection holes.

2. The drum-type power generation and pumping system for intercepting river or ocean currents according to claim 1, characterized in that: The spline sleeve is a connecting part between the hollow stator shaft and the drive shaft. It connects the spline of the hollow stator shaft with a nut and has a vertical hole on its side for inserting a movable pin. The drive shaft is connected through the movable pin. The top of the movable pin has a lifting ring and a terminal block. The cable is fixedly connected to the terminal block through the lifting ring.

3. The drum-type power generation and pumping system for intercepting river or ocean currents according to claim 1, characterized in that: The front cable and side cable are nylon ropes, steel wire ropes, or iron chains; the front fixing piles and side fixing piles are concrete anchor points; the front roller position adjuster and side roller position adjuster can adjust the cable.

4. The drum-type power generation and pumping system for intercepting river or ocean currents according to claim 1, characterized in that: The drive shaft can be an automotive drive shaft, with one end connected to a front cable, and the other end of the front cable connected to a front roller position adjuster on a front fixed post; a drive shaft collar is provided on the drive shaft near the movable pin, the drive shaft collar is connected to a side cable, and the other end of the side cable is connected to a side roller position adjuster on a side fixed post.

5. The drum-type power generation and pumping system for intercepting river or ocean currents according to claim 1, characterized in that: The generator may be a permanent magnet generator located inside the drum, a claw pole excitation generator located inside the drum, a claw pole permanent magnet generator located inside the drum, an external rotor permanent magnet generator located inside the drum, or an external rotor claw pole permanent magnet generator located inside the drum.

6. The drum-type power generation and pumping system for intercepting river or ocean currents according to claim 1, characterized in that: The generator may also be an external rotor permanent magnet generator located outside the drum, an external rotor brushed permanent magnet generator located inside the drum, an external rotor brushed permanent magnet generator located outside the drum, an external rotor excitation brushed generator located inside the drum, an external rotor excitation brushed generator located outside the drum, an external rotor excitation claw pole brushed generator located inside the drum, an external rotor excitation claw pole brushed generator located outside the drum, and an external rotor claw pole permanent magnet generator located outside the drum.

7. The drum-type power generation and pumping system for intercepting river or ocean currents according to claim 1, characterized in that: The generator may also be a permanent magnet generator without a rear end cover located inside the drum, a permanent magnet generator without a rear end cover located outside the drum, a permanent magnet generator with a claw pole without a rear end cover located inside the drum, or a permanent magnet generator with a claw pole without a rear end cover located outside the drum.

8. The drum-type power generation and pumping system for intercepting river or ocean currents according to claim 1, characterized in that: The generator can also be a claw-pole excitation generator with a gearbox located outside the drum.

9. The drum-type power generation and pumping system for intercepting river or ocean currents according to claim 1, characterized in that: The generator may be a water pump with a gearbox located outside the drum.

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