High-reliability flywheel type power generation device

Abstract

The invention relates to the technical field of generators, in particular to a high-reliability flywheel type power generation device, which comprises an equipment platform, a flywheel, a power generation device, a power generation device, a power generation device and a power generation device, a transmission gear capable of moving in the axial direction is slidably mounted on a rotating shaft of the flywheel; the protection assembly comprises a protection cover which is arranged on the equipment platform and covers the flywheel and an insertion plate which is arranged on the protection cover in a sliding mode, an emission lamp is arranged at the bottom of the protection cover, receiving panels are arranged on the two sides of the protection cover and are in communication connection with the control box, and a metal disc is arranged on the side, away from the protection cover, of the insertion plate; an elastic piece is arranged between the metal disc and the protective cover, and an electromagnet electrically connected with the control box is arranged on the inner wall of the protective cover. When the flywheel breaks down, the speed of the flywheel is effectively reduced, the flywheel cannot be abraded, and the situation that vibration of the flywheel is gradually aggravated and even the flywheel is separated from constraint to cause mechanical accidents is prevented.

Description

Technical Field

[0001] The present invention relates to the technical field of generators, and in particular to a highly reliable flywheel type generator. Background Art

[0002] A flywheel generator is a special type of generator that uses a high-speed rotating flywheel to store and release energy to generate electricity. Flywheel generators have the characteristics of fast response speed and high charging and discharging efficiency. They can be used for frequency modulation and peak regulation of power grids. When the power grid load fluctuates, the flywheel can quickly release or absorb electrical energy to stabilize the grid frequency and voltage.

[0003] The flywheel is the core component of the flywheel generator. It is a disc-shaped object with a large mass and large moment of inertia. The flywheel rotates under the action of external mechanical force and stores a large amount of kinetic energy. Since the flywheel stores and releases energy through high-speed rotation, the flywheel that works continuously at high speed will gradually intensify the flywheel vibration due to uneven flywheel mass distribution (such as manufacturing errors, material defects or local wear), bearing wear or failure, material fatigue and deformation, external interference (such as installation foundation vibration), etc., and even violent vibration may cause the flywheel to break free from the constraint and cause mechanical accidents (such as flying debris). Therefore, a highly reliable flywheel power generation device is proposed. Summary of the Invention

[0004] In view of the above-mentioned shortcomings of the prior art, the present invention provides a highly reliable flywheel generator device, which can effectively solve the problem in the prior art that the working status of the flywheel generator cannot be well monitored and the flywheel cannot be quickly and efficiently braked.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: The present invention provides a highly reliable flywheel power generation device, comprising an equipment platform, on which a control box, an electric motor and a generator are provided, and further comprising: A flywheel is provided on the equipment platform and is respectively connected to the motor and the generator, wherein a transmission gear capable of moving along the axial direction is slidably mounted on the rotating shaft of the flywheel; A protective assembly includes a protective cover arranged on the equipment platform and covering the flywheel, and an insert plate slidably arranged on the protective cover. A transmitting light is provided at the bottom of the protective cover, and receiving panels for detecting the displacement of the flywheel are provided on both sides of the protective cover, and the receiving panels are communicatively connected to the control box. A metal disk is provided on the side of the insert plate away from the protective cover, and an elastic member is provided between the metal disk and the protective cover. An electromagnet electrically connected to the control box is provided on the inner wall of the protective cover.

[0006] Furthermore, the insert plate is composed of multiple groups of arc plates and a fixed ring, the multiple groups of arc plates are distributed in a circular array on the fixed ring, and the arc plates pass through the side wall of the protective cover and extend to the flywheel, and the metal disk is set on the fixed ring.

[0007] Furthermore, the inserting plates are provided in two groups and are respectively located on both sides of the protective cover, and the inserting plates on both sides are staggered. When the two groups of the inserting plates are close to each other, a closed ring is formed to wrap the flywheel therein.

[0008] Furthermore, a limit key is provided on the rotating shaft of the flywheel for limiting the relative rotation between the transmission gear and the flywheel.

[0009] Furthermore, the flywheel is set on the equipment platform through a bracket, and the motor and generator are respectively located on the side of the two groups of brackets away from the flywheel. A driving gear connected to the motor is rotatably installed on the bracket close to the transmission gear, and the driving gear is meshed with the transmission gear.

[0010] Furthermore, it also includes a toggle assembly for changing the connection state between the flywheel and the motor, the toggle assembly includes a fixed plate arranged on the plug plate, and the fixed plate is provided with a toggle plate 1 and a toggle plate 2, and the toggle plate 1 and the toggle plate 2 are respectively located on both sides of the transmission gear. When the fixed plate follows the plug plate to move toward the protective cover, the transmission gear is toggled by the toggle plate 1 to cancel the connection with the motor. When the fixed plate follows the plug plate to move away from the protective cover, the transmission gear is toggled by the toggle plate 2 to realize the connection between the transmission gear and the motor.

[0011] Furthermore, a guide groove is provided in the fixed plate, and a rotating column is rotatably installed in the fixed plate. The shift plate is slidably arranged at one end of the fixed plate away from the plug plate, and the shift plate is provided with a pull rod and a movable column that extend into the fixed plate and are connected to each other, and the movable column is provided with a guide column that extends into the guide groove.

[0012] Furthermore, the fixed plate is provided with a reset spring rotatably connected to one end of the movable column, the reset spring is used to always pull the movable column toward the plug plate, the pull rod is rotatably connected to the dial plate, the pull rod passes through the rotating column, and a limit strip is provided on the pull rod.

[0013] Furthermore, a second guide groove is provided on the rotating column, the second shift plate is slidably arranged on the fixed plate, and a second guide column is provided on the second shift plate and extends into the second guide groove, so that the second guide column is driven to move toward the first shift plate when the rotating column rotates.

[0014] Beneficial effects.

[0015] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects: 1. The flywheel's vibration deviation is monitored through the cooperation of the transmitting light and the receiving panel. When the flywheel is abnormal, a signal is sent to the control box and the electromagnet is energized. The flywheel cuts the magnetic flux lines between the two sets of electromagnets, generating a secondary magnetic field to decelerate. This will not cause wear to the flywheel and can brake the flywheel to prevent the flywheel vibration from gradually increasing, or even causing violent vibration that causes the flywheel to break free from the constraints and cause mechanical accidents. Second, the plug plate is moved toward the protective cover to disconnect the transmission gear from the motor, preventing the motor from continuing to drive the flywheel to rotate. At the same time, the first plate and the fixed plate are partially displaced relative to each other, and then the pull rod and the movable column cooperate to drive the rotating column to rotate, driving the second plate to move toward the transmission gear until it contacts the transmission gear, thereby braking the flywheel in disguise and achieving a rapid stop of the flywheel; 3. When the transmission gear is pushed to reset, the reset spring pulls the movable column to reset, the rotating column rotates and resets, and the second shift plate is pulled away from the transmission gear, so that it is separated from the transmission gear again, preventing friction between the transmission gear and the second shift plate when rotating, which reduces the energy conversion efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a partial cross-sectional view of the present invention; Figure 3 This is a diagram showing the position relationship between the flappers and the flywheel when the flappers are close to each other; Figure 4 A partial cross-sectional view of the protective cover of the present invention; Figure 5 It is a structural schematic diagram of the toggle assembly of the present invention; Figure 6 For the present invention Figure 5 Enlarged view of point A in the middle; Figure 7 Schematic diagram of projection change when the flywheel of the present invention is axially offset; Figure 8 Schematic diagram of projection change when the flywheel of the present invention is radially offset.

[0018] Figure numerals: 1. Equipment platform; 11. Control box; 12. Motor; 13. Generator; 2. Flywheel; 21. Limit key; 22. Transmission gear; 3. Protective assembly; 31. Protective cover; 32. Transmitting lamp; 33. Receiving panel; 34. Electromagnet; 35. Elastic member; 36. Metal disk; 37. Insert plate; 4. Toggle assembly; 41. Fixed plate; 411. Guide groove 1; 412. Rotating column; 4121. Guide groove 2; 413. Reset spring; 42. Toggle plate 1; 421. Pull rod; 4211. Limit bar; 422. Movable column; 4221. Guide column 1; 43. Toggle plate 2; 431. Guide column 2. DETAILED DESCRIPTION

[0019] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

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

[0021] Refer to the attached Figure 1-8 A highly reliable flywheel power generation device includes an equipment platform 1, on which a control box 11, a motor 12, and a generator 13 are provided. The control box 11 includes a control module for converting signals into electrical signals for output. This technology is relatively conventional and will not be described in detail here. It also includes: A flywheel 2 is provided on the equipment platform 1 and is driven and connected to the motor 12 and the generator 13 respectively. When working, the flywheel 2 is started by the motor 12 to rotate, and then the flywheel 2 drives the generator 13 to generate electricity. Part of the generated electricity is used to drive the flywheel 2 to continue rotating, and the other part of the electricity is stored or used to be incorporated into the power system. The flywheel 2 is provided on the equipment platform 1 through a bracket, and the motor 12 and the generator 13 are respectively located on the side of the two groups of brackets away from the flywheel 2. A transmission gear 22 that can move along the axial direction is slidably installed on the rotating shaft of the flywheel 2. Specifically, a driving gear that is connected to the motor 12 for transmission is rotatably installed on the bracket close to the side of the transmission gear 22, and the driving gear is meshed with the transmission gear 22. When working, the motor 12 drives the driving gear to rotate through the pulley assembly, and then cooperates with the transmission gear 22 to drive the flywheel 2 to rotate. A limit key 21 is provided on the rotating shaft of the flywheel 2 for limiting the relative rotation of the transmission gear 22 and the flywheel 2; The device also includes a protective assembly 3 for protecting the high-speed rotating flywheel 2. The protective assembly 3 includes a protective cover 31 provided on the equipment platform 1 and covering the flywheel 2, and a plug-in plate 37 slidably provided on the protective cover 31. A transmitting light 32 is provided at the bottom of the protective cover 31. Figure 7 and attached Figure 8 When working, the emitting lamp 32 emits light to illuminate the flywheel 2, thereby generating a shadow, and receiving panels 33 for detecting the displacement of the flywheel 2 are provided on both sides of the protective cover 31, and the receiving panel 33 is communicatively connected to the control box 11, and the receiving panel 33 is used to receive the light emitted by the emitting lamp 32. A plurality of groups of probes for receiving light can be provided on the receiving panel 33, for example, N probes are provided. In the initial state and when the flywheel 2 is not offset, the N probes on the receiving panel 33 can all receive the light emitted by the emitting lamp 32, and there is a certain distance between the N probes and the shadow, which is a preset threshold value. , that is, the partial displacement of the flywheel 2 is within a reasonable or allowable range. When the flywheel 2 is axially offset and exceeds the threshold, the N probes on the receiving panel 33 will be partially blocked. At this time, the receiving panel 33 sends a risk warning signal to the control box 11. When the flywheel 2 is radially offset and exceeds the threshold, the N probes on the receiving panel 33 will also be partially blocked. At this time, the receiving panel 33 also sends a risk warning signal to the control box 11. A metal disk 36 is provided on the side of the plug-in board 37 away from the protective cover 31, and an elastic member 35 is provided between the metal disk 36 and the protective cover 31, wherein , the plug-in plate 37 is composed of multiple groups of arc-shaped plates and a fixed ring. The multiple groups of arc-shaped plates are distributed in a circular array on the fixed ring, and the arc-shaped plates pass through the side wall of the protective cover 31 and extend to the flywheel 2. The metal disk 36 is set on the fixed ring. The material of the metal disk 36 is a material that can be attracted by magnetism. In addition, there are two groups of plug-in plates 37 and they are respectively located on both sides of the protective cover 31, and the plug-in plates 37 on both sides are staggered. When the two groups of plug-in plates 37 are close to each other, a closed ring is formed and the flywheel 2 is wrapped therein. The inner wall of the protective cover 31 is provided with an electromagnet 34 electrically connected to the control box 11. When the receiving panel 33 sends a signal to the control box 11, After the risk warning signal is generated, the control box 11 energizes the electromagnet 34 and causes the electromagnet 34 to generate magnetism. The magnetic poles of the two groups of electromagnets 34 have the same direction. At this time, magnetic lines of force will be generated between the electromagnets 34 on both sides of the flywheel 2. The rapidly rotating flywheel 2 will cut the magnetic lines of force and generate eddy currents and a secondary magnetic field. According to Lenz's law, the secondary magnetic field generated is opposite to the magnetic field of the magnet itself. The eddy currents generated form a braking torque, which quickly brakes and slows down the flywheel, and then quickly reduces the speed of the flywheel 2 until it stops. In this process, no wear will be caused to the flywheel 2, and the flywheel 2 can be braked.

[0022] In the above technical solution, the vibration deviation of the flywheel 2 is monitored by the cooperation of the transmitting light 32 and the receiving panel 33. When the flywheel 2 has an abnormality, a signal will be generated to the control box 11 and the electromagnet 34 will be energized. The flywheel 2 cuts the magnetic flux lines between the two groups of electromagnets 34 to generate a secondary magnetic field for deceleration. It will not cause wear to the flywheel 2 and can brake the flywheel 2 to prevent the flywheel vibration from gradually increasing, or even causing violent vibration to cause the flywheel to break free from the constraint and cause a mechanical accident.

[0023] In addition, it also includes a toggle assembly 4 for changing the connection state between the flywheel 2 and the motor 12. The toggle assembly 4 includes a fixed plate 41 arranged on the plug plate 37. A toggle plate 1 42 and a toggle plate 2 43 are provided on the fixed plate 41. The toggle plate 1 42 and the toggle plate 2 43 are respectively located on both sides of the transmission gear 22. In the initial state, there is a gap between the toggle plate 1 42 and the toggle plate 2 43 and the transmission gear 22 to prevent friction between the transmission gear 22 and the toggle plate 1 42 or the toggle plate 2 43, thereby reducing the energy conversion efficiency of the flywheel 2. When the fixed plate 41 follows the plug plate 37 to move toward the protective cover 31, the toggle plate 1 42 and the toggle plate 2 43 are respectively located on both sides of the transmission gear 22. The transmission gear 22 is toggled to cancel the connection with the motor 12. When the fixing plate 41 moves along with the inserting plate 37 away from the protective cover 31, the transmission gear 22 is toggled by the second inserting plate 43 to realize the connection between the transmission gear 22 and the motor 12. When the electromagnet 34 is energized and generates magnetism, it attracts the metal disk 36 and compresses the elastic member 35. At this time, the two sets of inserting plates 37 approach each other and are inserted into the protective cover 31, wrapping the flywheel 2 to prevent the flywheel 2 from breaking and damaging the protective cover 31 before the brake is completely applied. At the same time, the transmission gear 22 is toggled by the transmitting light 32 to cancel the connection between the transmission gear 22 and the motor 12.

[0024] Furthermore, a guide groove 411 is provided in the fixed plate 41, and a rotating column 412 is rotatably installed in the fixed plate 41, the shift plate 42 is slidably set at the end of the fixed plate 41 away from the plug plate 37, and the shift plate 42 is provided with a pull rod 421 and a movable column 422 that extend into the fixed plate 41 and are connected to each other, the movable column 422 is provided with a guide column 4221 that extends into the guide groove 411, and the fixed plate 41 is provided with a return spring 413 that is rotatably connected to one end of the movable column 422. The return spring 413 is used to always pull the movable column 422 toward the plug plate 37, the pull rod 421 is rotatably connected to the shift plate 42, the pull rod 421 passes through the rotating column 412, and the pull rod 421 is provided with a limit bar 4211.

[0025] It is worth noting that a second guide groove 4121 is provided on the rotating column 412, and the second dial plate 43 is slidably set on the fixed plate 41, and a second guide column 431 is provided on the second dial plate 43 to extend into the second guide groove 4121. When the rotating column 412 rotates, the second guide column 431 is driven to move toward the first dial plate 42. The ends of the first dial plate 42 and the second dial plate 43 close to the transmission gear 22 are both provided with a semi-arc plate, and a plurality of sets of balls are provided on the side of the first dial plate 42 close to the transmission gear 22.

[0026] In the above technical solution, when the inserting plate 37 moves toward the protective cover 31 and pulls the dial plate 1 42 to disconnect the transmission gear 22 from the motor 12, the dial plate 1 42 and the fixed plate 41 are partially displaced relative to each other, thereby pulling the pull rod 421 and the movable column 422 to move, and the rotating column 412 is driven to rotate under the cooperation of the guide column 1 4221 and the guide groove 1 411, and then the guide column 2 431 is cooperated to drive the dial plate 2 43 to move toward the transmission gear 22 until it contacts the transmission gear 22, thereby braking the flywheel 2 in a disguised manner. When the electromagnet 34 is powered off, the elastic member 35 squeezes the inserting plate 37 to move in the direction away from the protective cover 31 At this time, the transmission gear 22 is pushed to its original position by the second shift plate 43. The process is completed in a short time. The second guide groove 4121 with a spring shape has a deceleration function. When the rotating column 412 cannot be quickly reset in a short time, when the transmission gear 22 is pushed to reset, the reset spring 413 pulls the movable column 422 to reset. At this time, the guide groove 1 411 and the guide column 1 4221 are cooperated again to drive the rotating column 412 to rotate and reset, and finally pull the second shift plate 43 away from the transmission gear 22, so that it is separated from the transmission gear 22 again, preventing the friction between the transmission gear 22 and the second shift plate 43 during rotation, thereby reducing the energy conversion efficiency.

[0027] Working principle: When working, the flywheel 2 is driven to rotate by the motor 12, and the flywheel 2 rotates and drives the generator 13 to generate electricity. When the signal of the transmitting light 32 is received by the receiving panel 33, a signal is generated to the control box 11 and the electromagnet 34 is energized. The flywheel 2 cuts the magnetic flux lines between the two sets of electromagnets 34 to generate a secondary magnetic field for deceleration, which will not cause wear to the flywheel 2. At the same time, when the plug plate 37 moves toward the protective cover 31, the dial plate 1 42 is pulled to disconnect the transmission gear 22 from the motor 12, preventing the motor 12 from continuing to drive the flywheel 2 to rotate. At the same time, the dial plate 1 42 and the fixed plate 41 are partially displaced relative to each other, thereby cooperating with the pull rod 421 and the movable The column 422 cooperates with the driving rotating column 412 to rotate, driving the second dial plate 43 to move toward the transmission gear 22 until it contacts the transmission gear 22, thereby braking the flywheel 2 in disguise. Finally, when the electromagnet 34 is powered off, the elastic member 35 squeezes the plug plate 37 to move in the direction away from the protective cover 31. At this time, the transmission gear 22 is pushed to its original position by the second dial plate 43. When the transmission gear 22 is pushed to reset, the reset spring 413 pulls the movable column 422 to reset. At this time, the rotating column 412 rotates and resets, pulling the second dial plate 43 away from the transmission gear 22, so that it is separated from the transmission gear 22 again, preventing friction between the transmission gear 22 and the second dial plate 43 when rotating, thereby reducing the energy conversion efficiency.

[0028] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A highly reliable flywheel power generation device, comprising an equipment platform (1), wherein the equipment platform (1) is provided with a control box (11), an electric motor (12) and a generator (13), characterized in that: Also includes: A flywheel (2) is provided on the equipment platform (1) and is drive-connected to the motor (12) and the generator (13) respectively, wherein a transmission gear (22) capable of moving in the axial direction is slidably mounted on the rotating shaft of the flywheel (2); A protective assembly (3), the protective assembly (3) comprising a protective cover (31) disposed on an equipment platform (1) and covering a flywheel (2) and a plug-in plate (37) slidably disposed on the protective cover (31), a transmitting lamp (32) being disposed at the bottom of the protective cover (31), receiving panels (33) for detecting the displacement of the flywheel (2) being disposed on both sides of the protective cover (31), and the receiving panels (33) being communicatively connected to a control box (11), a metal disk (36) being disposed on a side of the plug-in plate (37) away from the protective cover (31), and an elastic member (35) being disposed between the metal disk (36) and the protective cover (31), and an electromagnet (34) being electrically connected to the control box (11) being disposed on an inner wall of the protective cover (31).

2. A highly reliable flywheel power generation device according to claim 1, characterized in that: The insert plate (37) is composed of multiple groups of arc plates and a fixed ring. The multiple groups of arc plates are distributed in an annular array on the fixed ring, and the arc plates pass through the side wall of the protective cover (31) and extend toward the flywheel (2). The metal disk (36) is set on the fixed ring.

3. A highly reliable flywheel power generation device according to claim 1, characterized in that: The inserting plates (37) are provided in two groups and are respectively located on both sides of the protective cover (31), and the inserting plates (37) on both sides are staggered. When the two groups of the inserting plates (37) are close to each other, a closed ring is formed and the flywheel (2) is wrapped therein.

4. A highly reliable flywheel power generation device according to claim 1, characterized in that: A limit key (21) is provided on the rotating shaft of the flywheel (2) for limiting the relative rotation between the transmission gear (22) and the flywheel (2).

5. A highly reliable flywheel power generation device according to claim 4, characterized in that: The flywheel (2) is arranged on the equipment platform (1) through a bracket, and the motor (12) and the generator (13) are respectively located on the side of the two sets of brackets away from the flywheel (2), and a driving gear connected to the motor (12) is rotatably mounted on the bracket on the side close to the transmission gear (22), and the driving gear is meshed with the transmission gear (22).

6. A highly reliable flywheel power generation device according to claim 5, characterized in that: The invention also includes a toggle assembly (4) for changing the connection state between the flywheel (2) and the motor (12), wherein the toggle assembly (4) includes a fixed plate (41) arranged on the plug plate (37), and a toggle plate 1 (42) and a toggle plate 2 (43) are provided on the fixed plate (41), and the toggle plate 1 (42) and the toggle plate 2 (43) are respectively located on both sides of the transmission gear (22). When the fixed plate (41) follows the plug plate (37) to move toward the protective cover (31), the toggle plate 1 (42) toggle the transmission gear (22) to cancel the connection with the motor (12); when the fixed plate (41) follows the plug plate (37) to move away from the protective cover (31), the toggle plate 2 (43) toggle the transmission gear (22) to achieve the connection between the transmission gear (22) and the motor (12).

7. A highly reliable flywheel power generation device according to claim 6, characterized in that: A guide groove (411) is provided in the fixed plate (41), and a rotating column (412) is rotatably installed in the fixed plate (41). The shift plate (42) is slidably provided at one end of the fixed plate (41) away from the inserting plate (37), and a pull rod (421) and a movable column (422) are provided on the shift plate (42) and extend into the fixed plate (41) and are connected to each other. The movable column (422) is provided with a guide column (4221) that extends into the guide groove (411).

8. A highly reliable flywheel power generation device according to claim 7, characterized in that: The fixed plate (41) is provided with a return spring (413) rotatably connected to one end of the movable column (422). The return spring (413) is used to always pull the movable column (422) toward the plug plate (37). The pull rod (421) is rotatably connected to the first dial plate (42). The pull rod (421) passes through the rotating column (412), and a limit strip (4211) is provided on the pull rod (421).

9. A highly reliable flywheel power generation device according to claim 8, characterized in that: The rotating column (412) is provided with a second guide groove (4121), the second shift plate (43) is slidably arranged on the fixed plate (41), and the second shift plate (43) is provided with a second guide column (431) extending into the second guide groove (4121), and when the rotating column (412) rotates, the second guide column (431) is driven to move toward the first shift plate (42).

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