Flywheel axial limiting and locking device adapted to wind power frequency modulation

Abstract

This invention discloses a flywheel axial limiting and locking device adapted for wind power frequency regulation, comprising a main unit, which includes a device shell. Fixing frames are fixedly installed on the inner walls of both the left and right ends of the device shell. Two device rings are fixedly installed on the left and right end faces of the device shell, respectively. The main unit also includes a disassembly and assembly assembly; a protective unit located on the side of the main unit, including a connecting part and a protective part located on its side; and a control unit located inside the main unit, including a control part and a power part located on its top surface. This invention, through the coordinated operation of the control part and the power part, enables timely switching between two flywheel bodies for replacement during long-term operation of the flywheel energy storage device. This ensures that a problem with one flywheel body will not affect the normal operation of the entire device. Furthermore, it allows for periodic automatic maintenance and axial limiting and locking of the flywheel, preventing axial displacement and thus device damage.

Description

Technical Field

[0001] This invention relates to the field of wind power frequency regulation technology, specifically to a flywheel axial limit locking device adapted to wind power frequency regulation. Background Technology

[0002] "Wind power frequency regulation" refers to wind power generation participating in grid frequency regulation. When wind power is connected to the grid on a large scale, the output power of wind power fluctuates greatly due to the randomness and intermittency of wind speed, which poses a serious threat to the stability of grid frequency. Traditional thermal power units have the inherent rotational inertia to naturally respond to changes in grid frequency, while wind power units are connected to the grid through power electronic converters, and the rotor speed is decoupled from the grid frequency, thus lacking natural frequency regulation capabilities.

[0003] Chinese patent discloses a flywheel device, publication number CN201802813U, which includes a flywheel shaft and multiple flywheels disposed on the flywheel shaft. A connecting plate is provided in the middle of the flywheel shaft, and multiple shoulders are provided on the flywheel shaft. These shoulders are distributed on both sides of the connecting plate, and the outer diameter of the shoulders closest to the connecting plate decreases sequentially to the outer diameter of the last shoulder furthest from the connecting plate. Each flywheel is circumferentially fixed on the flywheel shaft and axially limited by the shoulders. The flywheel device has an appropriate flywheel structure and improved strength and toughness.

[0004] Existing technologies also have the following drawbacks: The core component of a flywheel energy storage system is a high-speed rotating flywheel rotor, which can reach speeds of tens of thousands of revolutions per minute. Under such high-speed rotation, the flywheel rotor is subjected to the combined effects of complex centrifugal force, magnetic levitation force, and external impact, which may cause axial displacement. Furthermore, if the axial displacement cannot be limited, the flywheel may malfunction, thus affecting the overall operation of the device. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a flywheel axial limit locking device adapted to wind power frequency regulation, thus solving the aforementioned problems.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solution: a flywheel axial limiting and locking device adapted to wind power frequency regulation, comprising a main unit, which includes a device shell, wherein a fixing frame is fixedly provided on the inner wall of both the left and right ends of the device shell, and two device rings are fixedly provided on the left and right end faces of the device shell respectively; the main unit also includes a disassembly and assembly component.

[0007] A protective unit is provided on the side of the main unit, which includes a connecting part and a protective part located on its side. The protective unit is used for the protection of the entire device and for maintenance control.

[0008] The control unit located inside the main unit includes a control section and a power section located on its top surface. The control unit is used for axial limit locking of the flywheel and flywheel switching control.

[0009] Preferably, the disassembly and assembly assembly includes two fixed rods fixedly connected to the front of the left and right ends of the device housing. Each of the two fixed rods has a bracket that is rotatably and slidably connected to it. The inner wall of the device housing is hinged with a maintenance plate by a hinge rod. Each of the left and right ends of the maintenance plate has a handle fixedly installed on its front. The sides of the two brackets are respectively engaged with the inner walls of the two handles.

[0010] Preferably, the connecting part includes two connecting pipes fixedly connected to the inner sides of the front and rear ends of the two device rings, and a dustproof net is fixedly provided on the inner wall of the top of each of the two connecting pipes. Two connecting cylinders are rotatably connected to the inner walls of the two device rings respectively, and a flywheel body is fixedly provided on the outer side of each of the two connecting cylinders.

[0011] Preferably, the protective part includes two protective plates, the inner sides of the two protective plates respectively contact the outer sides of the two device rings, and four fixing plates are fixedly provided at the four ends of the protective plates respectively, and four fixing bolts are threadedly connected to the inner wall of the device rings respectively.

[0012] Preferably, the control unit includes a first motor fixedly connected to the left end of the left end of the fixing frame. The right end of the output rod of the first motor extends through the left side of the fixing frame into the interior of the fixing frame and is fixedly connected to a rotating rod. The surface of the rotating rod is rotatably connected to the inner wall of the right end of the fixing frame.

[0013] Preferably, the inner walls of the two fixed frames are rotatably and slidably connected with an adjusting rod. A rotating disk is fixedly sleeved on the surface of the rotating rod, and a trigger slider is fixedly sleeved on the surface of the adjusting rod. The side of the rotating disk and the side of the trigger slider are in pressing contact. Two clamping blocks are fixedly sleeved on the left and right end surfaces of the adjusting rod, respectively.

[0014] Preferably, the power unit includes a second motor fixedly connected to the top surface inside the device housing, a drive rod fixedly disposed on the bottom surface of the output rod of the second motor, and a driven rod rotatably connected to the top surface inside the right end of the device housing.

[0015] Preferably, toothed pulleys are fixedly fitted on the surfaces of both the driving rod and the driven rod, and the two toothed pulleys are connected by a toothed belt drive. Bevel gears are fixedly fitted on the bottom surfaces of both the driving rod and the driven rod, and the inner walls of the two fixed frames are rotatably connected to the surfaces of the other two bevel gears.

[0016] Preferably, the surface of the control rod is slidably connected to the inner walls of the two bevel gears, and two magnetic rings are fixedly provided on the inner walls of the left and right ends of the control rod, respectively. The surface of the magnetic ring at the left end is magnetically connected to the inner wall of the left bevel gear, and the two bevel gears are connected by inclined engagement. The surface of the clamping block is engaged with the inner wall of the connecting cylinder.

[0017] Beneficial effects

[0018] This invention provides a flywheel axial limiting and locking device adapted for wind power frequency regulation. Compared with the prior art, it has the following advantages:

[0019] By having a control unit and a power unit working together, when the flywheel energy storage device is in operation for a long time, on the one hand, the two flywheel bodies can be switched in time for replacement, so that if one flywheel body has a problem, it will not affect the normal use of the entire device. On the other hand, it can be automatically inspected periodically and the flywheel axial limit is locked to prevent axial displacement and damage to the device. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a flywheel axial limiting and locking device adapted to wind power frequency regulation proposed in this invention.

[0021] Figure 2 This is a schematic diagram of the control unit structure of a flywheel axial limit locking device adapted to wind power frequency regulation proposed in this invention;

[0022] Figure 3 This is a schematic diagram of the control section of a flywheel axial limit locking device adapted to wind power frequency regulation proposed in this invention;

[0023] Figure 4 This is a schematic diagram of the protective unit structure of a flywheel axial limit locking device adapted to wind power frequency regulation proposed in this invention;

[0024] Figure 5 This invention proposes a flywheel axial limiting and locking device adapted for wind power frequency regulation. Figure 1 Enlarged schematic diagram of the structure in area A;

[0025] Figure 6 This invention proposes a flywheel axial limiting and locking device adapted for wind power frequency regulation. Figure 2 Enlarged schematic diagram of the structure in area B.

[0026] Figure Descriptions: 100, Main Unit; 101, Device Housing; 102, Fixing Frame; 103, Device Ring; 104, Assembly / Disassembly Components; 1041, Inspection Plate; 1042, Fixing Rod; 1043, Card Holder; 1044, Handle; 200, Protective Unit; 201, Connecting Part; 202, Protective Part; 2011, Connecting Pipe; 2012, Dustproof Net; 2013, Connecting Cylinder; 2014, Flywheel Body; 2021, Protective Plate; 2 022, Fixing plate; 2023, Fixing bolt; 300, Control unit; 301, Control section; 302, Power section; 3011, First motor; 3012, Rotating rod; 3013, Turning plate; 3014, Control rod; 3015, Clamping block; 3016, Trigger slider; 3021, Second motor; 3022, Driving rod; 3023, Driven rod; 3024, Toothed pulley; 3025, Bevel gear; 3026, Magnetic ring. Detailed Implementation

[0027] 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.

[0028] Example 1

[0029] Reference Figure 1 and Figure 2 , Figure 3 as well as Figure 6 This is the first embodiment of the present invention. This embodiment provides a flywheel axial limit locking device adapted to wind power frequency regulation. It can achieve the following: on the one hand, it can switch the two flywheel bodies 2014 in time for replacement, so that if one flywheel body 2014 has a problem, it will not affect the normal use of the whole device. On the other hand, it can automatically inspect and lock the flywheel axial limit at regular intervals to prevent axial displacement and damage to the device. It includes a main body unit 100, a protection unit 200 and a control unit 300.

[0030] The main unit 100 includes a device shell 101. Fixing brackets 102 are fixedly installed on the inner walls of the left and right ends of the device shell 101. Two device rings 103 are fixedly installed on the left and right end faces of the device shell 101 respectively. The main unit 100 also includes a disassembly and assembly component 104.

[0031] The protective unit 200, which is provided on the side of the main unit 100, includes a connecting part 201 and a protective part 202 located on its side. The protective unit 200 is used for the protection of the entire device and for maintenance control.

[0032] The control unit 300, which is located inside the main unit 100, includes a control part 301 and a power part 302 located on its top surface. The control unit 300 is used for axial limit locking of the flywheel and flywheel switching control.

[0033] In use, the main unit 100 is protected by the protective part 202 and the connecting part 201. The internal parts of the device housing 101 can be disassembled and inspected periodically with the disassembly and assembly component 104. When the flywheel energy storage device is working, power can be transmitted through the power part 302. The axial limit of the flywheel and the switching of the two sets of flywheels can be performed with the control part 301.

[0034] Example 2

[0035] Reference Figure 1 and Figure 4 as well as Figure 5 This is the second embodiment of the present invention. Unlike the previous embodiment, the disassembly and assembly component 104 includes two fixing rods 1042 fixedly connected to the front of the left and right ends of the device housing 101. The surfaces of the two fixing rods 1042 are rotatably and slidably connected to the brackets 1043. The inner wall of the device housing 101 is hinged to a maintenance plate 1041 by a hinge rod. The front of the left and right ends of the maintenance plate 1041 is fixedly provided with handles 1044. The sides of the two brackets 1043 are respectively engaged with the inner walls of the two handles 1044.

[0036] Specifically, the connecting part 201 includes two connecting pipes 2011 fixedly connected to the inner sides of the front and rear ends of the two device rings 103. Dustproof nets 2012 are fixedly installed on the inner walls of the top ends of the two connecting pipes 2011. Two connecting cylinders 2013 are rotatably connected to the inner walls of the two device rings 103 respectively. Flywheel bodies 2014 are fixedly installed on the outer sides of the two connecting cylinders 2013.

[0037] In addition, the protective part 202 includes two protective plates 2021. The inner sides of the two protective plates 2021 are in contact with the outer sides of the two device rings 103 respectively. Four fixing plates 2022 are fixedly installed at the four ends of the protective plates 2021 respectively. Four fixing bolts 2023 are threadedly connected to the inner wall of the device rings 103 respectively.

[0038] In use, the two protective plates 2021 are respectively placed on the outside of the two device rings 103, so that the device rings 103 and multiple fixing plates 2022 are aligned. Multiple fixing bolts 2023 are screwed in to fix them, so that the protective plates 2021 are fixedly installed. When the control unit 301 is connected to the connecting cylinder 2013 at one end, the air exchange between the connecting pipe 2011 and the protective plate 2021 is coordinated to quickly realize the operation of the flywheel body 2014, so that the flywheel energy storage device can work normally.

[0039] When maintenance is required, slide and rotate the bracket 1043 along the fixed rod 1042 to remove it from the two handles 1044. Grasp the two handles 1044 and flip the inspection plate 1041 along the hinge rod to quickly inspect and maintain it inside the device housing 101.

[0040] The control unit 301 includes a first motor 3011 fixedly connected to the left end of the left end of the left end of the fixed frame 102. The right end of the output rod of the first motor 3011 extends through the left side of the fixed frame 102 into the interior of the fixed frame 102 and is fixedly connected to a rotating rod 3012. The surface of the rotating rod 3012 is rotatably connected to the inner wall of the right end of the fixed frame 102. The inner walls of the two fixed frames 102 are rotatably and slidably connected to a control rod 3014. A rotating disk 3013 is fixedly sleeved on the surface of the rotating rod 3012. A trigger slider 3016 is fixedly sleeved on the surface of the control rod 3014. The side of the rotating disk 3013 and the side of the trigger slider 3016 are in contact with each other. Two clamping blocks 3015 are fixedly sleeved on the left and right ends of the control rod 3014, respectively.

[0041] In addition, the power unit 302 includes a second motor 3021 fixedly connected to the top surface inside the device housing 101. A drive rod 3022 is fixedly mounted on the bottom surface of the output rod of the second motor 3021. A driven rod 3023 is rotatably connected to the top surface inside the right end of the device housing 101. Toothed pulleys 3024 are fixedly sleeved on the surfaces of both the drive rod 3022 and the driven rod 3023. The two toothed pulleys 3024 are connected by a toothed belt. The bottom surfaces of both the drive rod 3022 and the driven rod 3023 are fixedly sleeved. The device includes bevel gears 3025, two fixed brackets 102 with their inner walls rotatably connected to the surfaces of the other two bevel gears 3025, an adjusting rod 3014 with its surface slidably connected to the inner walls of the two bevel gears 3025, two magnetic rings 3026 fixedly installed on the inner walls of the left and right ends of the adjusting rod 3014, the surface of the left magnetic ring 3026 with its surface magnetically connected to the inner wall of the left bevel gear 3025, the two bevel gears 3025 meshing with each other at an angle, and the surface of the clamping block 3015 engaging with the inner wall of the connecting cylinder 2013.

[0042] In use, the first motor 3011 is started, causing the rotating rod 3012 to drive the rotating disk 3013 to rotate. With its special placement, it quickly squeezes the trigger slider 3016, causing the control rod 3014 to move left and right. This causes the control rod 3014 to drive the clamping block 3015 at one end to lock into the connecting cylinder 2013 connected to the flywheel body 2014 that needs to work. The corresponding magnetic ring 3026 is opened, so that the two bevel gears are connected and fixed. The second motor 3021 is started, causing the driving rod 3022 to rotate. Through the transmission connection of the two toothed pulleys 3024 and the toothed belt, the driven rod 3023 rotates synchronously, quickly driving the connecting cylinder 2013 at the magnetic end to rotate, thereby driving the flywheel body 2014 to rotate, and quickly realizing the work.

[0043] It should be noted that the components such as motors and controllers in this solution are all common models on the market, and each component is a device or equipment that exists in the prior art, or a device or equipment that can be implemented by the prior art. Its power supply, specific composition and principle are clear to those skilled in the art. At the same time, the fixed connection method mentioned in this invention can adopt the connection methods that exist in the prior art and are common, such as bolts, welding and bonding, so they will not be described in detail.

Claims

1. A flywheel axial limiting and locking device adapted for wind power frequency regulation, characterized in that, include: The main unit (100) includes a device housing (101), and a fixing frame (102) is fixedly provided on the inner wall of the left and right ends of the device housing (101). Two device rings (103) are fixedly provided on the left and right end faces of the device housing (101). The main unit (100) also includes a disassembly and assembly component (104). A protective unit (200) is provided on the side of the main unit (100), which includes a connecting part (201) and a protective part (202) located on its side. The protective unit (200) is used for the protection of the entire device and for maintenance control. The control unit (300) is located inside the main unit (100), which includes a control part (301) and a power part (302) located on its top surface. The control unit (300) is used for axial limit locking of the flywheel and flywheel switching control.

2. The flywheel axial limiting and locking device adapted for wind power frequency regulation according to claim 1, characterized in that: The disassembly and assembly assembly (104) includes two fixed rods (1042) fixedly connected to the front of the left and right ends of the device housing (101). The surfaces of the two fixed rods (1042) are rotatably and slidably connected with brackets (1043). The inner wall of the device housing (101) is hinged with a maintenance plate (1041) by a hinge rod. The front of the left and right ends of the maintenance plate (1041) is fixedly provided with handles (1044). The sides of the two brackets (1043) are respectively engaged with the inner walls of the two handles (1044).

3. The flywheel axial limiting and locking device adapted for wind power frequency regulation according to claim 1, characterized in that: The connecting part (201) includes two connecting pipes (2011) fixedly connected to the inner sides of the front and rear ends of the two device rings (103). Dustproof nets (2012) are fixedly installed on the inner walls of the top ends of the two connecting pipes (2011). Two connecting cylinders (2013) are rotatably connected to the inner walls of the two device rings (103). Flywheel bodies (2014) are fixedly installed on the outer sides of the two connecting cylinders (2013).

4. The flywheel axial limiting and locking device adapted for wind power frequency regulation according to claim 1, characterized in that: The protective part (202) includes two protective plates (2021), the inner sides of the two protective plates (2021) respectively contact the outer sides of the two device rings (103), and four fixing plates (2022) are fixedly installed at the four ends of the protective plates (2021). The four fixing plates (2022) and the inner wall of the device rings (103) are respectively threaded with four fixing bolts (2023).

5. The flywheel axial limiting and locking device adapted for wind power frequency regulation according to claim 3, characterized in that: The control unit (301) includes a first motor (3011) fixedly connected to the left end of the left end of the left end of the fixing frame (102). The right end of the output rod of the first motor (3011) extends through the left side of the fixing frame (102) into the interior of the fixing frame (102) and is fixedly connected to a rotating rod (3012). The surface of the rotating rod (3012) is rotatably connected to the inner wall of the right end of the fixing frame (102).

6. The flywheel axial limiting and locking device adapted for wind power frequency regulation according to claim 5, characterized in that: The inner walls of the two fixed frames (102) are rotatably and slidably connected with an adjustment rod (3014). A rotating disk (3013) is fixedly sleeved on the surface of the rotating rod (3012), and a trigger slider (3016) is fixedly sleeved on the surface of the adjustment rod (3014). The side of the rotating disk (3013) and the side of the trigger slider (3016) are in pressure contact. Two clamping blocks (3015) are fixedly sleeved on the left and right ends of the adjustment rod (3014).

7. The flywheel axial limiting and locking device adapted for wind power frequency regulation according to claim 6, characterized in that: The power unit (302) includes a second motor (3021) fixedly connected to the top surface inside the device housing (101). The bottom surface of the output rod of the second motor (3021) is fixedly provided with an active rod (3022), and the top surface inside the right end of the device housing (101) is rotatably connected with a driven rod (3023).

8. The flywheel axial limiting and locking device adapted for wind power frequency regulation according to claim 7, characterized in that: The surfaces of the driving rod (3022) and the driven rod (3023) are both fixedly fitted with toothed pulleys (3024), and the two toothed pulleys (3024) are connected by a toothed belt drive. The bottom surfaces of the driving rod (3022) and the driven rod (3023) are both fixedly fitted with bevel gears (3025), and the inner walls of the two fixed frames (102) are rotatably connected to the surfaces of the other two bevel gears (3025).

9. The flywheel axial limiting and locking device adapted for wind power frequency regulation according to claim 8, characterized in that: The surface of the control rod (3014) is slidably connected to the inner wall of the two bevel gears (3025). Two magnetic rings (3026) are fixedly installed on the inner wall of the left and right ends of the control rod (3014). The surface of the magnetic ring (3026) at the left end is magnetically connected to the inner wall of the bevel gear (3025) at the left end. The two bevel gears (3025) are connected to each other by inclined surfaces. The surface of the clamping block (3015) is clamped to the inner wall of the connecting cylinder (2013).

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