Mechanical energy storage elastic unit

Abstract

The invention provides a mechanical energy storage elastic unit which comprises a spring fixed to the outer wall of an input shaft, a connecting block is fixedly connected to the side face of the tail end of the spring, and the connecting block is fixedly connected with a circular partition plate located in a shell and coaxial with the input shaft. A rotating shaft coaxial with the input shaft is fixedly connected to the middle of the inner side surface of the partition plate, the inner end of the spring of the next elastic unit is fixedly connected with the outer wall of the rotating shaft, the outer end of the spring of the elastic unit located at the tail end is fixedly connected with the inner wall of the shell, and an output shaft is fixedly connected to the middle of the other cylindrical face of the shell. Kinetic energy is input from the input shaft, the input shaft is made to rotate, multi-stage energy storage is conducted through the multiple elastic units, after the spring of the first elastic unit is full, the tail end of the spring of the first elastic unit drives the partition plate to rotate and drives the rotating shaft to rotate, and the spring of the second elastic unit is driven through the rotating shaft to conduct energy storage. And in the same way, multi-stage energy storage is carried out.

Description

Technical Field

[0001] The invention relates to the technical field of energy storage, and in particular to a mechanical energy storage elastic unit. Background Art

[0002] High-quality development of green, clean and renewable energy, making it a basic and supporting power source, is an urgent task in building a new power system.

[0003] At present, the uncertainty contradiction between wind and solar power generation and electricity demand is becoming more and more obvious, so that the power system still needs to rely heavily on traditional thermal power, nuclear power and pumped storage power stations to conduct large-scale auxiliary regulation of wind and solar power and other green power grid connection. This not only hinders the development of clean and renewable energy, but also brings more complexity to the power system and hidden dangers that are not conducive to achieving energy security.

[0004] After the existing mechanical energy storage device converts electrical energy into mechanical energy, the traditional single-stage mechanical energy storage has a capacity upper limit, which easily causes energy storage overflow. Therefore, a mechanical energy storage elastic unit is proposed. Summary of the invention

[0005] In order to solve at least one of the above-mentioned technical shortcomings, the present invention provides a mechanical energy storage elastic unit, including an energy storage unit, the energy storage unit including an outer shell, the outer shell is arranged in a cylindrical shape, an input shaft is rotatably connected in the middle of one cylindrical surface of the outer shell, and at least two elastic units are arranged at one end of the input shaft located inside the outer shell, the elastic unit includes a spring fixed on the outer wall of the input shaft, a connecting block is fixedly connected to the end side of the spring, the connecting block is fixedly connected to a circular partition coaxial with the input shaft and located inside the outer shell, a rotating shaft coaxial with the input shaft is fixedly connected in the middle of the inner surface of the partition, the inner end of the spring of the next elastic unit is fixedly connected to the outer wall of the rotating shaft, the outer end of the spring of the elastic unit located at the end is fixedly connected to the inner wall of the outer shell, and an output shaft is fixedly connected in the middle of another cylindrical surface of the outer shell.

[0006] Furthermore, it also includes a track and a support frame, the outer shell is rollingly connected to the support frame, and both sides of the bottom of the support frame are rotatably connected with a plurality of track wheels, and the support frame is movably connected to the track through the track wheels.

[0007] Furthermore, a plug-in groove is provided in the middle of the input shaft, and a plug-in connector for plugging with the input shaft is provided in the middle of the output shaft.

[0008] Furthermore, a shell card slot flush with the plug-in slot is provided on the shell, and two sides of the end of the plug connector are plugged into the shell card slot.

[0009] Furthermore, an airbag arranged in a ring shape is fixedly connected between two adjacent support frames.

[0010] Furthermore, an air supply pipe is laid in the middle of the track, and a plurality of bronchial tubes connected to the airbags are arranged on the air supply pipe, and each bronchial tube is provided with an electromagnetic valve.

[0011] Furthermore, the elastic coefficients of the plurality of springs gradually increase from the outside to the inside.

[0012] Furthermore, through holes are opened in the middle of the rotating shaft, the partition and the output shaft, and the rotating shaft, the partition and the output shaft are rotatably connected to the fixing rod fixed on the inner wall of the shell through the through holes.

[0013] Furthermore, the support frame is provided with a locking mechanism for locking the shell.

[0014] Furthermore, it also includes a control system for intelligent control, and the control system includes jump-type energy storage and step-by-step energy storage. Beneficial Effects

[0015] Compared with the prior art, the present invention, when storing energy, kinetic energy is input from the input shaft to rotate the input shaft, and multi-stage energy storage is performed through a plurality of elastic units. When the mainspring of the first elastic unit is fully stored, the end of the mainspring of the first elastic unit drives the partition to rotate, driving the rotating shaft to rotate, and the mainspring of the second elastic unit is driven by the rotating shaft to store energy, and so on to perform multi-stage energy storage.

[0016] When adjacent energy storage units are docked, the plug connector of the first energy storage unit is inserted into the plug slot of the second energy storage unit. When the first energy storage unit completes energy storage, energy can be stored in the second energy storage unit step by step.

[0017] When it is necessary to skip a specified energy storage unit, the plug connector is inserted into the inner end of the plug slot, so that both sides of the end of the plug connector are just inserted into the inside of the housing slot. At this time, the input shaft is clamped together with the housing by the plug connector. At this time, the elastic unit inside the stuck housing does not participate in energy storage and is skipped.

[0018] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings in conjunction with the embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is an axonometric view of the whole of the present invention.

[0020] Figure 2 It is a cross-sectional view of the whole of the present invention.

[0021] Figure 3 It is an axonometric view of the support frame of the present invention.

[0022] Figure 4 It is an axonometric view of the energy storage unit of the present invention.

[0023] Figure 5 The axonometric view of the elastic unit of the present invention is Figure 1 .

[0024] Figure 6 The axonometric view of the elastic unit of the present invention is Figure 2 .

[0025] Figure 7 It is an axial cross-sectional view of the energy storage unit of the present invention.

[0026] exist Figures 1 to 7 , the correspondence between the component names or lines and the figure numbers is: track 1, energy storage unit 2, shell 201, input shaft 202, elastic unit 203, spring 231, connecting block 232, partition 233, rotating shaft 234, output shaft 204, shell slot 205, airbag 3, support frame 4, air supply pipe 5, bronchial tube 501, solenoid valve 502. DETAILED DESCRIPTION

[0027] Please refer to Figures 1 to 7 ; The present embodiment provides a mechanical energy storage elastic unit, including an energy storage unit 2, the energy storage unit 2 including a housing 201, the housing 201 is cylindrical, a cylindrical surface of the housing 201 is rotatably connected to an input shaft 202 in the middle, the input shaft 202 is located at one end of the housing 201 and is provided with at least two elastic units 203, the elastic unit 203 includes a spring 231 fixed to the outer wall of the input shaft 202, the end side of the spring 231 is fixedly connected to a connecting block 232, the connecting block 232 A circular partition 233 is fixedly connected to the inside of the shell 201 and is coaxial with the input shaft 202. A rotating shaft 234 coaxial with the input shaft 202 is fixedly connected to the middle of the inner surface of the partition 233. The inner end of the spring 231 of the next elastic unit 203 is fixedly connected to the outer wall of the rotating shaft 234. The outer end of the spring 231 of the elastic unit 203 at the end is fixedly connected to the inner wall of the shell 201. An output shaft 204 is fixedly connected to the middle of another cylindrical surface of the shell 201.

[0028] In a specific implementation, electrical energy is converted into kinetic energy by a motor, and then stored by the energy storage unit 2 . The energy storage unit 2 converts kinetic energy into electrical energy by a generator.

[0029] When storing energy, kinetic energy is input from the input shaft 202, causing the input shaft 202 to rotate, and multi-stage energy storage is performed through a plurality of elastic units 203. When the mainspring 231 of the first elastic unit 203 is fully stored, the end of the mainspring 231 of the first elastic unit 203 drives the partition 233 to rotate, driving the rotating shaft 234 to rotate, and the mainspring 231 of the second elastic unit 203 is driven by the rotating shaft 234 to store energy, and multi-stage energy storage is performed in this way.

[0030] Furthermore, it also includes a track 1 and a support frame 4, the shell 201 is rollingly connected to the support frame 4, and both sides of the bottom of the support frame 4 are rotatably connected with a plurality of track wheels 401, and the support frame 4 is movably connected to the track 1 through the track wheels 401.

[0031] In specific implementation, the arrangement of the track 1 and the support frame 4 enables a plurality of energy storage units 2 to be docked on the track 1 , and different numbers of energy storage units 2 can be docked according to actual energy storage requirements.

[0032] Furthermore, a plug-in groove is provided in the middle of the input shaft 202 , and a plug-in connector for plugging with the input shaft 202 is provided in the middle of the output shaft 204 .

[0033] In specific implementation, when adjacent energy storage units 2 are docked, the plug connector of the first energy storage unit 2 is inserted into the plug slot of the second energy storage unit 2. When the first energy storage unit 2 completes energy storage, energy can be stored in the second energy storage unit 2 step by step.

[0034] Furthermore, a shell card slot 205 flush with the plug-in slot is provided on the shell 201 , and two sides of the end of the plug connector are plugged into the shell card slot 205 .

[0035] In specific implementation, when it is necessary to skip the specified energy storage unit 2, the plug connector is inserted into the inner end of the plug slot, so that both sides of the end of the plug connector are just inserted into the inside of the shell slot 205. At this time, the input shaft 202 is clamped by the plug connector together with the shell 201. At this time, the elastic unit 203 inside the stuck shell 201 does not participate in energy storage and is skipped.

[0036] Furthermore, an airbag 3 arranged in a ring shape is fixedly connected between two adjacent support frames 4 .

[0037] In a specific implementation, when controlling the adjacent support frames 4 to move closer to and away from each other, the expansion and contraction of the airbag 3 is controlled.

[0038] Furthermore, an air supply pipe 5 is laid in the middle of the track 1 , and a plurality of bronchial tubes 501 connected to the airbags 3 are arranged on the air supply pipe 5 , and each of the bronchial tubes 501 is provided with a solenoid valve 502 .

[0039] In specific implementation, the air supply system in the prior art is used to supply and exhaust air to the air supply pipe 5 , and the solenoid valve 502 is opened to supply and exhaust air to the airbag 3 , thereby controlling the expansion and contraction of the designated airbag 3 .

[0040] The airbag 3 has three states: deflated, half-full, and full.

[0041] When deflated, the plug connector is inserted into the inner end of the plug slot, so that both sides of the end of the plug connector are just inserted into the inside of the shell slot 205. At this time, the input shaft 202 is clamped by the plug connector and together with the shell 201. At this time, the elastic unit 203 inside the stuck shell 201 does not participate in energy storage and is skipped.

[0042] Half full: When adjacent energy storage units 2 are docked, the plug connector of the first energy storage unit 2 is inserted into the plug slot of the second energy storage unit 2. When the first energy storage unit 2 completes energy storage, energy can be stored in the second energy storage unit 2 step by step.

[0043] Full: When the adjacent energy storage units 2 are separated, the plug connector is separated from the inside of the plug slot, so that the adjacent energy storage units 2 are separated from each other.

[0044] Furthermore, the elastic coefficients of the plurality of mainsprings 231 gradually increase from the outside to the inside.

[0045] In a specific implementation, by gradually increasing the elastic coefficients of the springs 231 from the outside to the inside, it can be ensured that only when the spring 231 located on the outside is fully charged, the next spring 231 will be charged, thereby achieving step-by-step charging.

[0046] Furthermore, through holes are formed in the middle of the rotating shaft 234 , the partition plate 233 and the output shaft 204 , and the rotating shaft 234 , the partition plate 233 and the output shaft 204 are rotatably connected to a fixing rod fixed on the inner wall of the housing 201 through the through holes.

[0047] In specific implementation, by setting the fixing rod and the through hole, the rotating shaft 234, the partition 233 and the output shaft 204 can be limited, and at the same time, the rotating shaft 234, the partition 233 and the output shaft 204 can all rotate coaxially to facilitate energy transmission.

[0048] Furthermore, the support frame 4 is provided with a locking mechanism for locking the housing 201 .

[0049] In a specific implementation, the outer shell 201 and the support frame 4 can be locked into one body through the locking mechanism, and at this time, the energy stored inside the outer shell 201 is also locked.

[0050] The locking mechanism adopts a cylindrical locking device in the prior art. The cylindrical locking device is fixed to the support frame 4 , and the locking end of the cylindrical locking device is locked to the outer wall of the housing 201 .

[0051] Furthermore, it also includes a control system for intelligent control, and the control system includes jump-type energy storage and step-by-step energy storage.

[0052] In a specific implementation, 1 to N energy storage units 2 are simultaneously deployed on the track 1 through the support frame 4; Jumping energy storage: when storing energy individually for the Nth energy storage unit 2, first control the Nth airbag 3 to be inflated to half full, and then simultaneously control the 2nd to N-1st airbags to be evacuated until deflated. At this time, the input end 202 of the Nth energy storage unit 2 is plugged with the output end 204 of the N-1th energy storage unit 2, but the plug connector of the output end 204 is not fully inserted into the interior of the plug-in slot, and the shell 201 of the Nth energy storage unit 2 is not stuck together with the input end 202. At this time, the input ends 202 of the 1st to N-1st energy storage units 2 are stuck together with their respective shells 201. At this time, the 1st to N-1st energy storage units 2 rotate synchronously, driving the input end 202 of the Nth energy storage unit 2 to rotate, and storing energy in the Nth energy storage unit 2, thereby realizing jumping multiple energy storage units 2 for energy storage.

[0053] Step-by-step energy storage: When the Nth energy storage unit 2 is performing step-by-step energy storage, all the airbags 3 are controlled to be inflated to half full, so that all the energy storage units 2 are connected one by one. When the first energy storage unit 2 completes energy storage, energy is input to the input end of the second energy storage unit 2 through the output end 204 of the first energy storage unit 2, so that the second energy storage unit 2 starts to perform step-by-step energy storage.

[0054] At the same time, it overcomes the disadvantage of pumped-storage power stations being restricted by geographical location and can be directly deployed in new energy-rich areas such as deserts and Gobi, supporting the construction of the "Shagohuang" base.

Claims

1. A mechanical energy storage elastic unit, comprising an energy storage unit (2), characterized in that: The energy storage unit (2) comprises a housing (201), the housing (201) is cylindrical, an input shaft (202) is rotatably connected to the middle of a cylindrical surface of the housing (201), at least two elastic units (203) are provided at one end of the input shaft (202) located inside the housing (201), the elastic unit (203) comprises a spring (231) fixed to the outer wall of the input shaft (202), a connecting block (232) is fixedly connected to the side of the end of the spring (231), and the connecting block (232) is fixedly connected to a spring located inside the housing (201). ) is provided inside a circular partition (233) coaxial with the input shaft (202); a rotating shaft (234) coaxial with the input shaft (202) is fixedly connected in the middle of the inner surface of the partition (233); the inner end of the spring (231) of the next elastic unit (203) is fixedly connected to the outer wall of the rotating shaft (234); the outer end of the spring (231) of the elastic unit (203) at the end is fixedly connected to the inner wall of the housing (201); and the output shaft (204) is fixedly connected in the middle of another cylindrical surface of the housing (201).

2. A mechanical energy storage elastic unit according to claim 1, characterized in that: It also comprises a track (1) and a support frame (4), the outer shell (201) is rollingly connected to the support frame (4), both sides of the bottom of the support frame (4) are rotatably connected with a plurality of track wheels (401), and the support frame (4) is movably connected to the track (1) via the track wheels (401).

3. A mechanical energy storage elastic unit according to claim 2, characterized in that: A plug-in groove is provided in the middle of the input shaft (202), and a plug-in connector for plugging with the input shaft (202) is provided in the middle of the output shaft (204).

4. A mechanical energy storage elastic unit according to claim 3, characterized in that: The housing (201) is provided with a housing card slot (205) flush with the plug slot, and both sides of the end of the plug connector are plugged into the housing card slot (205).

5. A mechanical energy storage elastic unit according to claim 4, characterized in that: An air bag (3) arranged in a ring shape is fixedly connected between two adjacent support frames (4).

6. A mechanical energy storage elastic unit according to claim 5, characterized in that: An air supply pipe (5) is laid in the middle of the track (1), and a plurality of bronchi (501) connected to the airbags (3) are provided on the air supply pipe (5), and each of the bronchi (501) is provided with a solenoid valve (502).

7. A mechanical energy storage elastic unit according to claim 6, characterized in that: The elastic coefficients of the plurality of springs (231) gradually increase from the outside to the inside.

8. A mechanical energy storage elastic unit according to claim 7, characterized in that: The rotating shaft (234), the partition (233) and the output shaft (204) are all provided with through holes in the middle thereof, and the rotating shaft (234), the partition (233) and the output shaft (204) are all rotatably connected to a fixing rod fixed on the inner wall of the housing (201) through the through holes.

9. A mechanical energy storage elastic unit according to claim 8, characterized in that: The support frame (4) is provided with a locking mechanism for locking the outer shell (201).

10. A mechanical energy storage elastic unit according to claim 9, characterized in that: It also includes a control system for intelligent control, and the control system includes jump energy storage and step-by-step energy storage.

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