Spring chain power storage device

Abstract

The utility model relates to the technical field of energy storage equipment, and discloses spring and clockwork chain power storage equipment which can store electric energy in idle time and supply power in peak power consumption so as to reduce the power consumption cost of a user, and comprises a generator and at least two sets of energy storage systems, the energy storage system comprises an energy storage box, a driving shaft penetrating through the energy storage box, a spring which is contained in the energy storage box and wound on the driving shaft, a motor enabling the driving shaft to rotate, and a transmission assembly, wherein the two ends of the spring are fixed to the inner wall of the energy storage box and the driving shaft respectively. The transmission assembly comprises a speed reduction gear set connected with the driving shaft, an acceleration gear set spaced from the speed reduction gear set, an acceleration gear connected with the output end of the acceleration gear set and driving the generator to work, a brake pad used for reducing the speed of the speed reduction gear set, and a switching gear used for connecting or separating the speed reduction gear set and the acceleration gear set. A connecting shaft is arranged between the power shafts of every two adjacent energy storage systems in a sliding mode, and when the connecting shafts are arranged on the two adjacent power shafts in a sliding and sleeving mode, the connecting shafts and the two adjacent power shafts synchronously rotate.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage equipment, in particular to a spring-spring chain power storage device. Background Art

[0002] In order to meet the electricity demand of the majority of users and ensure the normal operation of the power supply system, the power department has made a comprehensive planning for electricity consumption, and different unit electricity prices are charged to users during peak and off-peak hours, so that users can reasonably arrange their electricity usage time according to their own circumstances. As a result, different users often have different electricity charges when using the same amount of electricity. In particular, for manufacturing companies, electricity charges are an important expense for daily operations. In order to meet the requirements of production efficiency, companies need to carry out daily production during peak and off-peak hours, which makes the electricity expenditure of manufacturing companies high; and some small companies choose to work at night when electricity is off-peak. Although this can reduce the company's electricity expenditure, the staff are more easily tired at night, and the error rate is significantly higher than the error rate during daytime operations, which in turn increases the product defect rate and even further increases the production cost of the product. Utility Model Content

[0003] Based on this, it is necessary to provide a spring-spring chain power storage device that can store electricity during idle time and supply power during peak hours to reduce users' electricity costs in order to address the above shortcomings.

[0004] A spring-spring chain power storage device includes a generator and at least two energy storage systems, each energy storage system is connected to the generator to drive the generator independently or together, and the energy storage system includes:

[0005] Energy storage box;

[0006] A drive shaft, wherein the drive shaft is rotatably matched with the side wall of the energy storage box, and the drive shaft passes through two opposite side walls of the energy storage box and forms a first end and a second end on two opposite outer sides of the energy storage box;

[0007] A spring spring, which is contained in the inner cavity of the energy storage box and wound on the driving shaft, one end of the spring spring is fixedly connected to the driving shaft, and the other end of the spring spring is fixedly connected to the inner wall of the energy storage box;

[0008] An electric motor, the electric motor is located outside the energy storage box and is drivingly connected to the first end, and is used to work when the power is idle and drive the drive shaft to rotate;

[0009] A transmission assembly, the transmission assembly is located outside the energy storage box, and includes a speed reduction gear set connected to the second end and driven by a drive shaft, a speed increase gear set arranged side by side and at intervals with the speed reduction gear set, a speed increase gear drivingly connected to the output end of the speed increase gear set, a power shaft passing through the speed increase gear and rotating coaxially with the speed increase gear and the rotating shaft of the generator respectively, and a brake pad used to approach the speed reduction gear set during the non-working period of the energy storage system to reduce the output torque of the speed reduction gear set, a power switching area is formed between the speed reduction gear set and the speed increase gear set, and the transmission assembly also includes a connecting shaft passing through the power switching area, and a switching gear slidably sleeved on the connecting shaft and capable of entering or leaving the power switching area to connect the speed reduction gear set with the speed increase gear set or separate the speed reduction gear set from the speed increase gear set;

[0010] The power shafts of two adjacent energy storage systems are spaced apart in the same direction, and a coupling is slidably arranged at one end of each power shaft away from the generator, and rotates synchronously with the power shaft; the coupling is slidably sleeved on or away from one end of the adjacent power shaft adjacent to the generator, and rotates synchronously with the two adjacent power shafts when slidably sleeved on the two adjacent power shafts.

[0011] In one embodiment, the first end sliding sleeve is provided with a first shaft which is circumferentially limited with the driving shaft, a first gap is formed between the end of the output shaft of the motor and the first end, a first toggle block and a first pushing mechanism which drives the first toggle block to move along the length direction of the driving shaft are provided below or beside the first gap, a first limiting groove is provided on the first toggle block on the side facing the first gap, and the edge of the first shaft is located in the first limiting groove; when the first toggle block pushes the first shaft sliding sleeve to be provided on the driving shaft and the output shaft of the motor, the first shaft is circumferentially limited with the driving shaft and the output shaft of the motor respectively so that the driving shaft and the output shaft of the motor rotate synchronously, and when the first toggle block pushes the first shaft to leave the output shaft of the motor, the driving shaft is disconnected from the output shaft of the motor.

[0012] In one embodiment, the speed reduction gear set includes a first gear fixedly mounted on the second end of the driving shaft, and a second gear located beside the first gear and meshing with the first gear for transmission, and the number of teeth of the first gear is smaller than that of the second gear.

[0013] In one embodiment, the speed-up gear set includes a second shaft located on the side of the second gear facing away from the first gear and arranged parallel to the drive shaft, a third gear fixedly mounted on the second shaft, a fourth gear located on the side of the third gear facing away from the second gear and meshing with the third gear, a third shaft passing through the center of the fourth gear and fixedly connected to the fourth gear, and a fifth gear fixed on the third shaft and rotating synchronously with the fourth gear. The number of teeth of the third gear is greater than that of the fourth gear, and the number of teeth of the fifth gear is greater than that of the fourth gear.

[0014] In one embodiment, the speed-up gear meshes with the fifth gear, and the number of teeth of the speed-up gear is smaller than that of the fifth gear, and the number of teeth of the switching gear is smaller than that of the second gear and the third gear, respectively.

[0015] In one embodiment, the energy storage system also includes a second toggle block located below the power switching area and a second pushing mechanism for driving the second toggle block to move along the length direction of the connecting shaft, and a second limiting groove is provided on the second toggle block on the side facing the power switching area, and the edge of the switching gear is located in the second limiting groove; the second toggle block pushes the switching gear to enter or leave the power switching area, so that the second gear is transmitted to the third gear through the switching gear, or the second gear is disconnected from the third gear.

[0016] In one of the embodiments, the energy storage system also includes a third toggle block located below or beside the connecting shaft and a third pushing mechanism that drives the third toggle block to move along the length direction of the power shaft. A third limiting groove is provided on the third toggle block on the side facing the connecting shaft, and the edge of the connecting shaft is located in the third limiting groove. When the third toggle block pushes the connecting shaft to slide on two adjacent power shafts, the connecting shaft is circumferentially limited with the two adjacent power shafts respectively, and the two adjacent power shafts rotate synchronously to switch the power source.

[0017] In one embodiment, the brake pad is located beside the second gear, and the energy storage system further includes a fourth driving mechanism for driving the brake pad to approach and fit the wheel surface of the second gear to reduce the rotation speed of the second gear.

[0018] In one of the embodiments, the spring-spring chain power storage device further comprises a speed sensor for detecting the rotation speed of the fifth gear.

[0019] In one embodiment, the spring is wound around the drive shaft along a helical or spiral path.

[0020] The spring-spring linked power storage device of the utility model is implemented such that the motor works when the power is not in use to drive the spring spring to be tightened to store electric energy, and releases the spring spring during peak power consumption, so that the switching gear connects the deceleration gear set and the speed-up gear set, so that the elastic potential energy stored in the spring spring is transmitted to the power shaft in the form of mechanical energy, thereby driving the generator to work to generate electricity, so that the electric energy stored during the power is not in use can be used during peak power consumption. Users can also use electric energy with a relatively cheap price during peak power consumption, which is beneficial to reducing the electricity cost of users, especially production enterprises. Enterprises do not need to work specifically during the power is not in use, which reduces the increase in product defect rate caused by operator fatigue, and is beneficial to reducing the production cost of products. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of a spring-spring chain power storage device from one perspective in one embodiment of the utility model;

[0022] Figure 2 This is a schematic structural diagram from another perspective of a spring-spring chain power storage device in one embodiment of the utility model. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0024] Please combine Figure 1 and Figure 2 The utility model discloses a spring-spring interlocking power storage device 10 that can store electric energy during idle time and supply power during peak hours to reduce the user's electricity cost. The spring-spring interlocking power storage device 10 includes a generator 100 and at least two energy storage systems 200. Each energy storage system 200 is respectively connected to the generator 100 to independently drive the generator 100 or to jointly drive the generator 100. That is to say, the generator 100 can be powered by only a single energy storage system 200. When the torque output by a single energy storage system 200 is small, multiple energy storage systems 200 can also power the generator 100 at the same time. In addition, in this embodiment, by setting up multiple energy storage systems 200, the problem of a short power generation time of the generator 100 and insufficient convertible power caused by insufficient power stored in a single energy storage system 200 can be overcome.

[0025] Specifically, the energy storage system 200 includes an energy storage box 210, a drive shaft 220, a spring spring 230, a motor 240, and a transmission assembly 250, wherein the energy storage box 210 is used to install the drive shaft 220 and accommodate the spring spring 230 to protect the spring spring 230. In this embodiment, the energy storage box 210 is a hollow rectangular parallelepiped structure, and a closable inspection door is provided on one side of the energy storage box 210. The operator can check the status of the spring spring 230 inside the energy storage box 210 by opening the inspection door and perform maintenance in time to ensure the reliability of the equipment operation. On the one hand, the drive shaft 220 is used as a fixing part of the spring spring 230 and drives the spring spring 230 to be tightened under the drive of the motor 240, so that the electrical energy is stored in the spring spring 230 in the form of elastic potential energy; on the other hand, when the spring spring 230 is released, the drive shaft 220 rotates under the drive of the spring spring 230, and releases the elastic potential energy in the form of mechanical energy and transmits it to the generator 100 via the transmission assembly 250, so as to drive the generator 100 to work and realize the conversion of mechanical energy into electrical energy.

[0026] The drive shaft 220 is rotatably matched with the side wall of the energy storage box 210, and the drive shaft 220 passes through the two opposite side walls of the energy storage box 210 and forms a first end and a second end on the two opposite outer sides of the energy storage box 210, that is, both ends of the drive shaft 220 pass through the surface of the energy storage box 210 to provide a connection part between the drive shaft 220 and the motor 240 and the transmission assembly 250. In order to ensure the stability of the rotation of the drive shaft 220, in this embodiment, a bearing is provided at the position where the drive shaft 220 rotates with the side wall of the energy storage box 210. The bearing can be a tapered roller bearing, a deep groove ball bearing or other bearings in the industry that can reduce the rotation friction. The spring spring 230 is accommodated in the inner cavity of the energy storage box 210 and is wound on the drive shaft 220. One end of the spring spring 230 is fixedly connected to the drive shaft 220, and the other end of the spring spring 230 is fixedly connected to the inner wall of the energy storage box 210. In this embodiment, one end of the spring spring 230 that cooperates with the inner wall of the energy storage box 210 is fixed to the inner wall of the energy storage box 210 by bolts, and the spring spring 230 is wound on the drive shaft 220 along a spiral path or a vortex path. When the spring spring 230 is wound on the drive shaft 220 along the spiral path, the spring spring 230 is wound successively along the length direction of the drive shaft 220; when the spring spring 230 is wound on the drive shaft 220 along the vortex path, two baffles are arranged on both sides of the drive shaft 220, and the two baffles are respectively sleeved on the drive shaft 220, and the drive shaft 220 can rotate relative to the baffles. In this way, by setting the baffles, it is ensured that the spring spring 230 is always carried out along the vortex path during the tightening and releasing process. Preferably, the spring spring 230 is wound on the drive shaft 220 along the vortex path. The motor 240 is located outside the energy storage box 210 and is drivingly connected to the first end, and is used to work when the power is not in use and drive the drive shaft 220 to rotate. That is to say, in this embodiment, the motor 240 works when the power is not in use and transmits the electric energy to the spring spring 230 via the drive shaft 220 for storage. When the power is in peak use, the spring spring 230 releases the stored energy and converts it into electric energy again through the transmission assembly 250 and the generator 100, so that the user can use cheaper electricity during peak power use.

[0027] In one embodiment, the first end is slidably sleeved with a first shaft 221 which is circumferentially limited with the drive shaft 220, a first gap is formed between the output shaft end of the motor 240 and the first end, a first toggle block 222 and a first pushing mechanism 223 which drives the first toggle block 222 to move along the length direction of the drive shaft 220 are provided below or beside the first gap, the first toggle block 222 is in an n-shaped structure or a C-shaped structure, a first limiting groove 224 is provided on the first toggle block 222 on the side facing the first gap, and the edge of the first shaft 221 is located in the first limiting groove 224; when the first toggle block 222 pushes the first shaft 221 to be slidably sleeved on the drive shaft 220 and the output shaft of the motor 240, the first shaft 221 is circumferentially limited with the drive shaft 220 and the output shaft of the motor 240 respectively so that the drive shaft 220 and the output shaft of the motor 240 rotate synchronously, and when the first toggle block 222 pushes the first shaft 221 to leave the output shaft of the motor 240, the drive shaft 220 is disconnected from the output shaft of the motor 240. Preferably, the first pushing mechanism 223 is an electric push rod or a pneumatic push rod. In addition, in order to ensure that the first shaft 221 can rotate synchronously with the drive shaft 220 and the output shaft of the motor 240 after being sleeved on the drive shaft 220 and the output shaft of the motor 240, so as to realize the transmission of kinetic energy of the motor 240 to the drive shaft 220, a through hole is opened in the middle of the first shaft 221, and the inner wall of the through hole is provided with a plurality of teeth extending along the length direction of the drive shaft 220 at intervals, and the first end of the drive shaft 220 and the end of the output shaft of the motor 240 are respectively provided with a toothed portion whose outer contour is adapted to the inner contour of the through hole. In this way, the circumferential limitation of the first shaft 221, the drive shaft 220 and the output shaft of the motor 240 can be realized through the cooperation between the teeth on the inner surface of the through hole and the toothed portion, and while facilitating the sliding of the first shaft 221 between the drive shaft 220 and the output shaft of the motor 240, the synchronous rotation of the first shaft 221 and the drive shaft 220 or the first shaft 221 and the output shaft of the drive shaft 220 and the motor 240 is ensured.

[0028] By providing the first shaft 221 and the first toggle block 222 that drives the first shaft 221 to slide between the drive shaft 220 and the output shaft of the motor 240, when the spring spring 230 needs to be tightened to store electric energy when the power is idle, the first pushing mechanism 223 drives the first toggle block 222 to move, and further pushes the first shaft 221 to slide, so that the first shaft 221 is connected to the drive shaft 220 and the output shaft of the motor 240 at the same time, so that the motor 240 works and drives the drive shaft 220 to rotate, so as to achieve the tightening of the spring spring 230. After the spring spring 230 is tightened, the first pushing mechanism 223 drives the first toggle block 222 to move in the opposite direction, so as to push the first shaft 221 away from the output shaft of the motor 240, thereby cutting off the connection between the drive shaft 220 and the motor 240.

[0029] The transmission assembly 250 is located outside the energy storage box 210, and the transmission assembly 250 includes a speed reduction gear set 251 connected to the second end and driven by the drive shaft 220, a speed increase gear set 252 arranged side by side and spaced apart from the speed reduction gear set 251, a speed increase gear 253 drivingly connected to the output end of the speed increase gear set, a power shaft 254 passing through the speed increase gear 253 and rotating coaxially with the speed increase gear 253 and the rotating shaft of the generator 100, and a power shaft 254 for rotating coaxially with the speed increase gear 253 and the rotating shaft of the generator 100 during the non-working period of the energy storage system 200. A brake pad 255 is provided near the deceleration gear set 251 to reduce the output torque of the deceleration gear set 251. A power switching area is formed between the deceleration gear set 251 and the speed-up gear set 252. The transmission assembly 250 further includes a connecting shaft 256 that passes through the power switching area, and a switching gear 257 that is slidably sleeved on the connecting shaft 256 and can enter or leave the power switching area to connect the deceleration gear set 251 with the speed-up gear set 252 or separate the deceleration gear set 251 from the speed-up gear set 252. In this embodiment, the deceleration gear set 251 is provided to reduce the torque output from the drive shaft 220 to the switching gear 257, so as to avoid the problem that the switching gear 257 is damaged by a large impact due to excessive output torque of the drive shaft 220 when the switching gear 257 is pushed between the deceleration gear set 251 and the speed-up gear set 252, so as to ensure the safety of the equipment. The switching gear 257 is used to achieve the connection or disconnection between the energy storage system 200 where it is located and the generator 100, that is, when the switching gear 257 enters the power switching area and is connected to the speed reduction gear set 251 and the speed-up gear set 252 respectively, the energy storage system 200 where the switching gear 257 group is located transfers the stored electric energy to the generator 100 for energy supply; when the switching gear 257 leaves the power switching area, the energy storage system 200 where the switching gear 257 group is located is disconnected from the generator 100, so as to switch the generator 100 to other energy storage systems 200, that is, to achieve the switching of the power source of the generator 100. By setting the speed-up gear set 252 and the speed-up gear 253, the smaller output torque transmitted to the speed-up gear set 252 can be adjusted through multiple transmission ratios, and finally transmitted to the generator 100 with a larger output torque, so as to ensure the normal operation of the generator 100. In addition, in this embodiment, when the current energy storage system 200 is in a non-working period, that is, there is no need for the motor 240 to drive the drive shaft 220 to rotate to tighten the spring spring 230, and there is no need for the current energy storage system 200 to function as a generator 100, the switching gear 257 leaves the power switching area, and the brake pad 255 decelerates the speed reduction gear set 251 until the torque output by the speed reduction gear set 251 is 0, so as to limit the speed reduction gear set 251, the drive shaft 220 and the spring spring 230, and avoid the energy loss problem caused by the self-resetting of the spring spring 230.

[0030] In this embodiment, the speed reduction gear set 251 includes a first gear 2511 fixedly sleeved on the second end of the driving shaft 220, and a second gear 2512 located beside the first gear 2511 and meshing with the first gear 2511. The number of teeth of the first gear 2511 is less than the number of teeth of the second gear 2512. Preferably, the gear ratio of the second gear 2512 to the first gear 2511 is greater than or equal to 5, so as to significantly reduce the torque output by the second gear 2512. The speed-up gear set 252 includes a second shaft 2521 located on a side of the second gear 2512 facing away from the first gear 2511 and arranged parallel to the driving shaft 220, a third gear 2522 fixedly sleeved on the second shaft 2521, a fourth gear 2523 located on a side of the third gear 2522 facing away from the second gear 2512 and meshing with the third gear 2522, a third shaft 2524 passing through the center of the fourth gear 2523 and fixedly connected to the fourth gear 2523, and a fifth gear 2525 fixed on the third shaft 2524 and rotating synchronously with the fourth gear 2523. The number of teeth of the third gear 2522 is greater than that of the fourth gear 2523, and the number of teeth of the fifth gear 2525 is greater than that of the fourth gear 2523. Further, the number of teeth of the third gear 2522 is greater than or equal to the number of teeth of the second gear 2512, the speed-up gear 253 is meshed with the fifth gear 2525, and the number of teeth of the speed-up gear 253 is less than the number of teeth of the fifth gear 2525, and the number of teeth of the switching gear 257 is less than the number of teeth of the second gear 2512 and the third gear 2522. Preferably, the gear ratio of the third gear 2522 to the fourth gear 2523 is greater than or equal to 5, the gear ratio of the fifth gear 2525 to the fourth gear 2523 is greater than or equal to 5, and the gear ratio of the fifth gear 2525 to the speed-up gear 253 is greater than or equal to 5, so as to increase the rotation speed of the speed-up gear 253 and ensure the normal operation of the generator 100. In other embodiments, the gear ratio of each gear can be further adjusted according to the elastic performance of the spring 230 and the working parameters of the generator 100, which will not be repeated here.

[0031] In order to realize the movement of the switching gear 257 relative to the power switching area, in one embodiment, the energy storage system 200 also includes a second toggle block 260 located below the power switching area and a second pushing mechanism 261 that drives the second toggle block 260 to move along the length direction of the connecting shaft 256. A second limiting groove 262 is provided on the second toggle block 260 on the side facing the power switching area, and the edge of the switching gear 257 is located in the second limiting groove 262. Preferably, the second toggle block 260 is in a C-shaped structure or an n-shaped structure, and the second pushing mechanism 261 is an electric push rod or a pneumatic push rod. The second toggle block 260 pushes the switching gear 257 to enter or leave the power switching area, so that the second gear 2512 is transmitted to the third gear 2522 through the switching gear 257, or the second gear 2512 is disconnected from the third gear 2522.

[0032] The power shafts 254 of two adjacent energy storage systems 200 are spaced apart in the same direction, and a connecting shaft 270 is slidably provided on one end of each power shaft 254 away from the generator 100, and rotates synchronously with the power shaft 254; the connecting shaft 270 is slidably sleeved on or away from one end of the adjacent power shaft 254 adjacent to the generator 100, and rotates synchronously with the two adjacent power shafts 254 when slidably sleeved on the two adjacent power shafts 254. In this embodiment, in order to ensure that the connecting shaft 270 can rotate synchronously with the two adjacent power shafts 254 after connecting the two adjacent power shafts 254, a through hole is opened in the middle of the connecting shaft 270, and the connecting shaft 270 is penetrated on the power shaft 254 through the through hole. The inner surface of the through hole is provided with a tooth pattern extending along the length direction of the power shaft 254, and the parts of the two power shafts 254 that cooperate with the through hole are provided with a tooth pattern part adapted to the shape of the inner surface of the through hole. In this way, the circumferential limitation of the connecting shaft 270 and the two adjacent power shafts 254 can be achieved through the cooperation between the tooth pattern on the inner surface of the through hole and the tooth pattern part, which facilitates the sliding of the connecting shaft 270 between the two adjacent power shafts 254 and ensures the synchronous rotation of the connecting shaft 270 and the power shaft 254.

[0033] In one embodiment, the energy storage system 200 further includes a third toggle block 271 located below or beside the connecting shaft 270 and a third pushing mechanism 272 that drives the third toggle block 271 to move along the length direction of the power shaft 254. A third limiting groove 273 is provided on the third toggle block 271 on the side facing the connecting shaft 270, and the edge of the connecting shaft 270 is located in the third limiting groove 273. Preferably, the third toggle block 271 is in a C-shaped structure or an n-shaped structure, and the third pushing mechanism 272 is an electric push rod or a pneumatic push rod. When the third toggle block 271 pushes the connecting shaft 270 to slide on two adjacent power shafts 254, the connecting shaft 270 is circumferentially limited with the two adjacent power shafts 254, and the two adjacent power shafts 254 rotate synchronously to switch the power source.

[0034] In order to achieve the driving of the brake pad 255, in this embodiment, the brake pad 255 is located beside the second gear 2512, and the energy storage system 200 also includes a fourth driving mechanism 2551 for driving the brake pad 255 to approach and fit the wheel surface of the second gear 2512 to reduce the rotation speed of the second gear 2512. The fourth driving mechanism 2551 is an electric push rod or a pneumatic push rod, and the pushing part of the fourth driving mechanism 2551 is fixedly connected to the brake pad 255. In order to reduce the damage to the wheel surface of the second gear 2512, in this embodiment, the brake pad 255 is a rubber block that can be detachably mounted on the pushing part of the fourth driving mechanism 2551. In this way, while achieving the deceleration "braking" of the second gear 2512, the wear of the wheel surface of the second gear 2512 is reduced. When the brake pad 255 is severely worn, it can be removed and replaced.

[0035] In order to ensure the stable operation of the generator 100, in one embodiment, the spring-spring chain power storage device 10 further includes a speed sensor for detecting the rotation speed of the fifth gear 2525. Further, the spring-spring chain power storage device 10 further includes a controller electrically connected to the motor 240, the first driving mechanism 223, the second driving mechanism 261, the third driving mechanism 272, the fourth driving mechanism 2551 and the speed sensor, respectively, and the controller may be a PLC controller.

[0036] This embodiment takes the energy storage system 200 (i.e., energy storage system No. 1) closest to the generator 100 as an example to illustrate the energy storage and energy release process. During the operation of the spring-spring interlocking power storage device 10, when the power is idle, the controller first controls the fourth pushing mechanism 2551 to drive the brake pad 255 to press against the wheel surface of the second gear 2512 to brake the second gear 2512; then the controller controls the first pushing mechanism 223 to work, so as to drive the first toggle block 222 to push the first shaft 221 between the drive shaft 220 and the output shaft of the motor 240, and the controller controls the motor 240 to work, so that under the connection of the first shaft 221, the motor 240 transfers kinetic energy to the drive shaft 220, so that the drive shaft 220 rotates and the spring 230 is tightened. After the spring spring 230 is tightened, the controller controls the motor 240 to stop working, and controls the first pushing mechanism 223 to work, so that the first toggle block 222 pushes the first shaft 221 away from the output shaft of the motor 240, and the drive shaft 220 is disconnected from the output shaft of the motor 240, thereby realizing energy storage of the energy storage system 200.

[0037] When it is necessary to generate electricity during the peak power consumption, the controller controls the second pushing mechanism 261 to push the second toggle block 260 into the power switching area, so that the switching gear 257 is respectively connected to the deceleration gear set 251 and the speed-up gear set 252. Then, the controller controls the fourth pushing mechanism 2551 to take the brake pad 255 away from the second gear 2512, so that the constraint on the spring spring 230 is released, and the spring spring 230 recovers its deformation and drives the driving shaft 220, the deceleration gear set 251, the switching gear 257, the speed-up gear set 252 and the speed-up gear 253 to rotate, so as to provide energy to the generator 100.

[0038] When the speed sensor detects that the rotation speed of the fifth gear 2525 drops below the preset rotation speed, the power provided by the energy storage system 200 where the fifth gear 2525 is located to the generator 100 is insufficient to enable the generator 100 to operate stably, which will cause the output voltage of the generator 100 to be unstable. At this time, the controller controls the second pushing mechanism 261 to push the second toggle block 260 and the switching gear 257 away from the power switching area, and at the same time drives the fourth pushing mechanism 2551 to push the brake pad 255 close to the second gear 2512, so that the brake pad 255 brakes the second gear 2512, thereby disconnecting the energy storage system 200 from the generator 100. Subsequently, the controller controls the third driving mechanism 272 of the current energy storage system 200 to operate, so that the third driving mechanism 272 pushes the connecting shaft 270 to between two adjacent power shafts 254 via the third shifting block 271, thereby realizing the connection between the power shaft 254 of the current energy storage system 200 and the power shaft 254 of its adjacent energy storage system 200 (i.e., energy storage system No. 2). In this case, the controller controls the second driving mechanism 261 of the energy storage system 200 adjacent to the current energy storage system 200 to operate, so that the switching gear 257 of the adjacent energy storage system 200 enters its corresponding power switching area, thereby realizing the connection between the adjacent energy storage system 200 (i.e., energy storage system No. 2) and the generator 100.

[0039] In this embodiment, when the torque output by the current energy storage system 200 decreases below a preset value, it is necessary to connect each energy storage system 200 and the generator 100 in sequence. When the current energy storage system 200 is connected to the generator 100, the power shafts 254 of each energy storage system 200 in front of the current energy storage system 200 are connected to the power shaft 254 of the current energy storage system 200 and the generator 100, so as to transfer the kinetic energy of the energy storage system 200 that is farther away from the generator 100 to the generator 100.

[0040] When the torque output by all energy storage systems 200 is less than a preset value, each energy storage system 200 can be connected to the generator 100 at the same time, so that the generator 100 can be driven by multiple energy storage systems 200 to work at the same time to utilize the residual energy in each energy storage system 200.

[0041] The spring-spring interlocking power storage device 10 of the utility model is implemented, and the motor 240 works when the power is not in use to drive the spring spring 230 to be tightened to store electric energy, and releases the spring spring 230 when the power is in peak use, so that the switching gear 257 connects the deceleration gear set 251 and the speed-up gear set 252, so that the elastic potential energy stored in the spring spring 230 is transmitted to the power shaft 254 in the form of mechanical energy, and then drives the generator 100 to work to generate electricity, so that the electric energy stored in the idle power period can be used during the peak power period. Users can also use cheaper electric energy during the peak power period, which is beneficial to reducing the electricity cost of users, especially production enterprises. Enterprises do not need to work specifically during the idle power period, which reduces the increase in product defect rate caused by operator fatigue, and is beneficial to reducing the production cost of products.

[0042] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0043] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A spring-spring chain power storage device, characterized in that: It includes a generator and at least two energy storage systems, each of which is connected to the generator to drive the generator independently or together, and the energy storage system includes: Energy storage box; A drive shaft, wherein the drive shaft is rotatably matched with the side wall of the energy storage box, and the drive shaft passes through two opposite side walls of the energy storage box and forms a first end and a second end on two opposite outer sides of the energy storage box; A spring spring, which is contained in the inner cavity of the energy storage box and wound on the driving shaft, one end of the spring spring is fixedly connected to the driving shaft, and the other end of the spring spring is fixedly connected to the inner wall of the energy storage box; An electric motor, the electric motor is located outside the energy storage box and is drivingly connected to the first end, and is used to work when the power is idle and drive the drive shaft to rotate; A transmission assembly, the transmission assembly is located outside the energy storage box, and includes a speed reduction gear set connected to the second end and driven by a drive shaft, a speed increase gear set arranged side by side and at intervals with the speed reduction gear set, a speed increase gear drivingly connected to the output end of the speed increase gear set, a power shaft passing through the speed increase gear and rotating coaxially with the speed increase gear and the rotating shaft of the generator respectively, and a brake pad used to approach the speed reduction gear set during the non-working period of the energy storage system to reduce the output torque of the speed reduction gear set, a power switching area is formed between the speed reduction gear set and the speed increase gear set, and the transmission assembly also includes a connecting shaft passing through the power switching area, and a switching gear slidably sleeved on the connecting shaft and capable of entering or leaving the power switching area to connect the speed reduction gear set with the speed increase gear set or separate the speed reduction gear set from the speed increase gear set; The power shafts of two adjacent energy storage systems are spaced apart in the same direction, and a coupling is slidably arranged at one end of each power shaft away from the generator, and rotates synchronously with the power shaft; the coupling is slidably sleeved on or away from one end of the adjacent power shaft adjacent to the generator, and rotates synchronously with the two adjacent power shafts when slidably sleeved on the two adjacent power shafts.

2. The spring-spring chain power storage device according to claim 1, characterized in that: The first-end sliding sleeve is provided with a first shaft which is limited circumferentially with the driving shaft, and a first gap is formed between the end of the output shaft of the motor and the first end. A first toggle block and a first pushing mechanism which drives the first toggle block to move along the length direction of the driving shaft are provided below or beside the first gap. A first limiting groove is provided on the first toggle block on the side facing the first gap, and the edge of the first shaft is located in the first limiting groove. When the first toggle block pushes the first shaft to slide on the driving shaft and the output shaft of the motor, the first shaft is limited circumferentially with the driving shaft and the output shaft of the motor respectively so that the driving shaft and the output shaft of the motor rotate synchronously. When the first toggle block pushes the first shaft to leave the output shaft of the motor, the driving shaft is disconnected from the output shaft of the motor.

3. The spring-spring chain power storage device according to claim 1, characterized in that: The speed reduction gear set includes a first gear fixedly sleeved on the second end of the driving shaft, and a second gear located beside the first gear and meshing with the first gear for transmission. The number of teeth of the first gear is smaller than that of the second gear.

4. The spring-spring chain power storage device according to claim 3, characterized in that: The speed-up gear set includes a second shaft located on the side of the second gear facing away from the first gear and arranged parallel to the driving shaft, a third gear fixedly mounted on the second shaft, a fourth gear located on the side of the third gear facing away from the second gear and meshing with the third gear, a third shaft passing through the center of the fourth gear and fixedly connected to the fourth gear, and a fifth gear fixed on the third shaft and rotating synchronously with the fourth gear. The number of teeth of the third gear is greater than that of the fourth gear, and the number of teeth of the fifth gear is greater than that of the fourth gear.

5. The spring-spring chain power storage device according to claim 4, characterized in that: The speed-up gear is meshed with the fifth gear, and the number of teeth of the speed-up gear is smaller than that of the fifth gear. The number of teeth of the switching gear is smaller than that of the second gear and the third gear, respectively.

6. The spring-spring chain power storage device according to claim 5, characterized in that: The energy storage system also includes a second toggle block located below the power switching area and a second pushing mechanism that drives the second toggle block to move along the length direction of the connecting shaft. A second limiting groove is provided on the second toggle block on the side facing the power switching area, and the edge of the switching gear is located in the second limiting groove; the second toggle block pushes the switching gear to enter or leave the power switching area, so that the second gear is transmitted to the third gear through the switching gear, or the second gear is disconnected from the third gear.

7. The spring-spring chain power storage device according to claim 1, characterized in that: The energy storage system also includes a third toggle block located below or beside the connecting shaft and a third pushing mechanism that drives the third toggle block to move along the length direction of the power shaft. A third limiting groove is provided on the third toggle block on the side facing the connecting shaft, and the edge of the connecting shaft is located in the third limiting groove. When the third toggle block pushes the connecting shaft to slide on two adjacent power shafts, the connecting shaft is circumferentially limited with the two adjacent power shafts respectively, and the two adjacent power shafts rotate synchronously to switch the power source.

8. The spring-spring chain power storage device according to claim 3, characterized in that: The brake pad is located beside the second gear, and the energy storage system also includes a fourth driving mechanism for driving the brake pad to approach and fit the wheel surface of the second gear to reduce the rotation speed of the second gear.

9. The spring-spring chain power storage device according to claim 4, characterized in that: The spring-spring chain power storage device also includes a speed sensor for detecting the rotation speed of the fifth gear.

10. The spring-spring chain power storage device according to claim 1, characterized in that: The spring is wound around the drive shaft along a helical or spiral path.

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