Stacker motor energy recovery storage device

Abstract

The present application relates to the technical field of stacking machine, disclose a stacking machine kinetic energy recovery storage device, the device includes power generation equipment, set up on the stacking machine, and with the lifting mechanism in the lifting drum main shaft on the stacking machine is connected;The power generation equipment includes the base fixedly installed on the stacking machine, the drive unit and the box body fixedly installed on the base, the switching unit connected with the drive unit, the protection unit is arranged on the switching unit, and at least two power generation mechanisms are arranged in the box body;By matching the switching unit, when the speed is higher than the normal interval, the large diameter transmission gear can be automatically switched, the output speed and torque at the rear end are reduced by changing the transmission ratio, the whole power transmission link does not need to be cut off, the power can be continuously transmitted to the power generation mechanism under high speed condition, and the falling potential energy is recovered, which will not directly cut off the power generation loop due to too high speed.

Description

Technical Field

[0001] This invention relates to the technical field of stacker cranes, specifically to a stacker crane energy recovery and storage device. Background Technology

[0002] Stacker cranes are the core storage and retrieval equipment in automated warehouses (AS / RS). They primarily achieve automated storage, retrieval, handling, and stacking of goods through the coordinated operation of walking, lifting, and fork extension mechanisms. During operation, the lifting mechanism experiences frequent start-stop and braking, generating a significant amount of recoverable braking kinetic energy. By installing a kinetic energy recovery device, this redundant mechanical energy can be converted into electrical energy for storage, effectively reducing energy consumption and improving the equipment's energy efficiency and operational stability.

[0003] For example, Chinese patent CN121134635A discloses a stacker crane positioning method and system with coupled kinetic energy recovery. The method includes acquiring the operating state and target docking position state fingerprints before the stacker crane enters the kinetic energy recovery stage, constructing a state space based on the target state fingerprints, and generating a landing corridor that can stably converge to zero speed; generating a predicted trajectory based on the current operating state, and determining the intersection of the predicted trajectory and the landing corridor to identify the critical point at which the crane can switch to the energy braking stage at the latest; and determining the kinetic energy recovery strategy and braking switching command based on the critical point to achieve optimal energy recovery of the stacker crane while ensuring positioning accuracy.

[0004] Existing kinetic energy recovery devices have some problems. During kinetic energy recovery, the rotation speed of the lifting drum's main shaft determines whether recovery is needed. When the main shaft's rotation speed is too high or too low, existing recovery devices generally abandon kinetic energy recovery. This is because excessive rotation speed leads to excessive generator voltage and current, triggering overvoltage protection and cutting off the recovery circuit. High speed also damages generator components. Conversely, insufficient rotation speed prevents the generator's induced voltage from reaching the charging threshold, preventing the stored energy from being stored in the energy storage unit and thus hindering potential energy recovery. Therefore, excessive rotation speed results in wasted kinetic energy.

[0005] Therefore, how to recover the kinetic energy of stacker cranes is a problem that needs to be solved. Summary of the Invention

[0006] The present invention provides a stacking kinetic energy recovery and storage device to solve the above-mentioned problems existing in the prior art.

[0007] A stacking kinetic energy recovery and storage device includes:

[0008] The power generation equipment is installed on the stacker crane and connected to the lifting drum main shaft in the lifting mechanism of the stacker crane.

[0009] The power generation equipment includes a base fixedly installed on the stacker crane, a drive unit and a housing fixedly installed on the base, a switching unit connected to the drive unit, a protective unit disposed on the switching unit, and at least two power generation mechanisms disposed in the housing.

[0010] The output terminals of the switching unit and the protection unit are respectively connected to two power generation mechanisms.

[0011] Both the lifting mechanism and the power generation mechanism are existing technologies.

[0012] Furthermore, the drive unit includes a support fixedly mounted on the base, a drive shaft movably mounted on the support, two supports symmetrically arranged on both sides of the support and fixedly connected to the base, a driven shaft mounted on the supports and movably connected to the supports, a stationary meshing seat fixedly mounted on the driven shaft, two moving meshing seats symmetrically arranged at both ends of the drive shaft and capable of reciprocating along the axis of the drive shaft, and two first drive parts and two second drive parts symmetrically arranged on the base;

[0013] The first drive unit and the second drive unit have the same structure;

[0014] When the moving engagement seat engages with the stationary engagement seat, the moving engagement seat maintains a preset distance from the end of the drive shaft;

[0015] One of the driven shafts is connected to the main shaft of the lifting drum.

[0016] Furthermore, the first drive unit includes a hinge seat fixedly mounted on the base, a rotary motor fixedly connected to the hinge seat, an output shaft disposed at the output end of the rotary motor, and a drive branch connected to the output shaft;

[0017] The drive branch in the first drive unit is V-shaped, and the free end of the drive branch is provided with at least two first abutting wheels;

[0018] The drive branch in the second drive unit is a combination type, including a first link connected to the output shaft, a second link connected to the first link, a third link disposed on the second link, and a second abutment wheel disposed on the first link;

[0019] The second link has an L-shaped structure, with the first link and the third link located at both ends of the second link and perpendicular to the plane containing the side of the second link.

[0020] Furthermore, both the moving engagement seat and the stationary engagement seat are columnar structures, and both the moving engagement seat and the stationary engagement seat at their opposite ends are provided with multiple gear teeth;

[0021] The moving engagement seat and the stationary engagement seat are provided with placement grooves in the circumferential direction, wherein the moving engagement seat has a first placement groove and the stationary engagement seat has a second placement groove;

[0022] One of the first abutting wheels in the first drive unit is located in the first placement groove, and the other first abutting wheel abuts against the toothless surface of the stationary engagement seat when the moving engagement seat and the stationary engagement seat are separated;

[0023] The second abutting wheel in the second drive unit abuts against the toothless surface of the moving engagement seat, and the third connecting rod is located in the second placement groove on the stationary engagement seat when the moving engagement seat and the stationary engagement seat are engaged.

[0024] Furthermore, the switching unit includes a mounting base disposed on the base, a first connecting shaft movably disposed on the mounting base and connected to another driven shaft, an input gear sleeved on the first connecting shaft, switching parts symmetrically disposed on both sides of the input gear, and an adjustment part disposed on the mounting base.

[0025] One of the switching units is connected to the protection unit.

[0026] Furthermore, the adjustment unit includes an adjustment motor fixedly mounted on the mounting base, a rotating shaft connected to the output end of the adjustment motor, a swing rod disposed on the rotating shaft, a limiting rod connected to the swing rod, two first slide rails symmetrically disposed on the mounting base, a support shaft located between the two first slide rails, a first slider slidably connected to the first slide rail, a sliding plate for connecting the two first sliders, and two toggle plates disposed on the mounting base.

[0027] The actuating plates are located on both sides of the input gear;

[0028] The mounting base is provided with an arc-shaped groove for the movement of the limiting rod, the swing rod is provided with an oblong hole, and a support rod located in the oblong hole, the support rod being connected to the slide plate.

[0029] Furthermore, the switching unit includes a second connecting shaft movably disposed on the mounting base, and an output gear sleeved on the second connecting shaft;

[0030] The output gears in the two switching sections have different diameters, with the larger diameter being the first gear and the other being the second gear. The protective unit is connected to the second connecting shaft on which the first gear is mounted.

[0031] Furthermore, the protective unit includes a main shaft connected to the second connecting shaft, a rotating cover connected to the main shaft, a secondary shaft connected to the power generation mechanism, a rotating seat disposed on the secondary shaft, and a guide for connecting the rotating seat and the rotating cover.

[0032] Furthermore, the guide includes a guide seat sleeved on the sub-shaft, a second slide rail connected to the guide seat, a second slider slidably connected to the second slide rail, and a guide shaft passing through the second slider and abutting against the rotating seat and the rotating cover.

[0033] Furthermore, the inner wall of the rotating cover is provided with a driving groove; the inclined surface of the driving groove forms a preset angle with the axial end face of the rotating cover;

[0034] The rotating seat is provided with multiple V-shaped guide grooves on its circumference, and adjacent guide grooves are connected end to end to form a continuous limiting groove;

[0035] One end of the guide shaft is located in the guide groove, and the other end of the guide shaft is located in the drive groove.

[0036] Beneficial Effects: This invention discloses a stacker kinetic energy recovery and storage device. In order to recover the kinetic energy of the stacker crane, this device uses a drive unit in conjunction with a magnetoelectric speed sensor to monitor the speed of the drive shaft in real time. When the speed exceeds the set range, the moving and stationary meshing seats on one side separate, and the drive shaft rotates unloaded. This can divert the instantaneous impact torque at high speeds to prevent the power generation mechanism from being overloaded and damaged. At low speeds, it can also disconnect the branch to eliminate reverse drag resistance and avoid ineffective energy consumption from offsetting the power generation benefits. At the same time, it is equipped with a switching unit. When the speed is higher than the normal range, it can automatically switch the large-diameter transmission gear. By changing the transmission ratio, it reduces the output speed and torque of the rear end without cutting off the entire power transmission link. Under high-speed conditions, it can continuously transmit power to the power generation mechanism and recover falling potential energy without directly cutting off the power generation circuit due to excessive speed. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the stacking kinetic energy recovery and storage device of the present invention;

[0038] Figure 2 This is a schematic diagram of the power generation equipment structure of the present invention;

[0039] Figure 3 This is a schematic diagram of the drive unit structure of the present invention;

[0040] Figure 4 This is a schematic diagram of the first driving unit structure of the present invention;

[0041] Figure 5 This is a schematic diagram of the switching unit structure of the present invention;

[0042] Figure 6 This is a schematic diagram of the adjustment part structure of the present invention;

[0043] Figure 7 This is a schematic diagram of the protective unit structure of the present invention;

[0044] Figure 8 This is a perspective view of the protective unit of the present invention.

[0045] Reference numerals: 1. Stacker crane; 2. Lifting mechanism; 3. Power generation equipment; 31. Base; 32. Drive unit; 321. Support seat; 322. Drive shaft; 323. Support; 324. Driven shaft; 325. Moving engagement seat; 326. Stationary engagement seat; 327. Gear tooth; 328. First drive unit; 3281. Hinge seat; 3282. Rotary motor; 3283. Output shaft; 3284. Drive branch; 3285. First abutment wheel; 329. Second drive unit; 33. Switching unit; 331. Mounting seat; 332. First connecting shaft; 333. Switching unit; 3331 3332. Second connecting shaft; 3333. Output gear; 334. Adjusting motor; 335. Rotating shaft; 336. Swing rod; 337. Limiting rod; 338. Slide plate; 339. First slider; 3310. First slide rail; 3311. Support shaft; 3312. Input gear; 34. Housing; 35. Protective unit; 351. Main shaft; 352. Rotating cover; 353. Rotating groove; 354. Guide; 3541. Guide seat; 3542. Second slide rail; 3543. Second slider; 3544. Guide shaft; 3545. Guide groove; 355. Rotating seat; 356. Secondary shaft. Detailed Implementation

[0046] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0047] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0048] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places throughout this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0049] This invention discloses a stacking kinetic energy recovery and storage device, with reference to Figures 1-8 ,include:

[0050] A power generation device 3 is installed on a stacker crane 1 and connected to a lifting drum shaft in a lifting mechanism 2 on the stacker crane 1. The power generation device 3 includes a base 31 fixedly installed on the stacker crane 1, a drive unit 32 and a housing 34 fixedly installed on the base 31, a switching unit 33 connected to the drive unit 32, a protective unit 35 installed on the switching unit 33, and at least two power generation mechanisms installed in the housing 34. The output end of the switching unit 33 and the output end of the protective unit 35 are respectively connected to the two power generation mechanisms.

[0051] During the stacking process of the stacker crane 1, the height of the goods is adjusted by the lifting mechanism 2. The moving lifting mechanism 2 can drive the lifting drum shaft to rotate. Then, in conjunction with the work of the drive unit 32 and the switching unit 33, the power generation mechanism can be put into the power generation state, so that the redundant mechanical energy when the stacker crane 1 falls is converted into electrical energy.

[0052] The power generation device 3 rotates synchronously with the lifting drum shaft of the stacker crane 1. The drive unit 32 controls the engagement and disengagement of the dynamic and static meshing seats 326 to achieve precise power input. The switching unit 33 completes the gear shifting of the large and small gear transmission, and the protection unit 35 stabilizes the transmission output. Finally, it drives the two sets of power generation mechanisms to work differently, continuously converting the redundant mechanical energy of the stacker crane 1 falling into electrical energy, thus completing the kinetic energy recovery.

[0053] The drive unit 32 includes a support base 321 fixedly mounted on the base 31, a drive shaft 322 movably mounted on the support base 321, two supports 323 symmetrically arranged on both sides of the support base 321 and fixedly connected to the base 31, a driven shaft 324 mounted on the supports 323 and movably connected to the supports 323, a stationary meshing seat 326 fixedly mounted on the driven shaft 324, and two supports symmetrically arranged at both ends of the drive shaft 322 that can reciprocate along the axial direction of the drive shaft 322. The base 321 includes a movable engagement seat 325, and two first drive units 328 and two second drive units 329 symmetrically arranged on the base 31. The first drive units 328 and the second drive units 329 have the same structure. When the movable engagement seat 325 engages with the stationary engagement seat 326, the movable engagement seat 325 maintains a preset distance from the end of the drive shaft 322. One of the driven shafts 324 is connected to the lifting drum shaft. The support base 321 is also equipped with a magnetoelectric speed sensor, which is used to measure the speed of the drive shaft 322 in real time.

[0054] When the lifting drum shaft starts to rotate, since the lifting drum shaft is connected to one of the driven shafts 324, one of the first drive units 328 and the second drive unit 329 starts to work, thereby driving the drive shaft 322 to rotate. Then, the magnetoelectric speed sensor detects the rotation speed of the drive shaft 322. When the rotation speed of the drive shaft 322 is within a predetermined range, the other first drive unit 328 and the second drive unit 329 start to work, thereby driving the other driven shaft 324 to rotate, thus recovering the potential energy when the stacker crane 1 descends. Conversely, when the other first drive unit 328 and the second drive unit 329 are in a non-working state, the drive shaft 322 drives the moving engagement seat 325 to idle, avoiding the damage to the power generation mechanism caused by the excessive speed of the drive shaft 322 or the failure of the power generation mechanism to work properly due to the excessive speed of the drive shaft 322.

[0055] When the rotational speed is lower or higher than the set range, the first drive unit 328 and the second drive unit 329 on one side stop working, causing the moving meshing seat 325 and the stationary meshing seat 326 on that side to separate, and the drive shaft 322 to run unloaded. This avoids damage to the power generation mechanism due to high-speed overload and eliminates the problems of insufficient power generation efficiency and ineffective work at low speeds, thus extending the service life of the device. By allowing the drive shaft 322 to run unloaded when the rotational speed is below the standard, the reverse drag resistance of power generation is eliminated, avoiding the reverse energy consumption defect of recovering energy consumption to offset the power generation benefits. At the same time, if the rotational speed of the drive shaft 322 in this device is too high, it will disconnect the transmission on one side, diverting and dissipating the instantaneous impact torque, thus avoiding fatigue damage to the bearings and windings inside the power generation mechanism due to alternating impact.

[0056] The first drive unit 328 includes a hinge seat 3281 fixedly mounted on the base 31, a rotary motor 3282 fixedly connected to the hinge seat 3281, an output shaft 3283 disposed at the output end of the rotary motor 3282, and a drive branch 3284 connected to the output shaft 3283; wherein the drive branch 3284 in the first drive unit 328 is V-shaped, and the free end of the drive branch 3284 is provided with at least two first abutment wheels 3285; wherein the drive branch 3284 in the second drive unit 329 is a combination type, including a first connecting rod connected to the output shaft 3283, a second connecting rod connected to the first connecting rod, a third connecting rod disposed on the second connecting rod, and a second abutment wheel disposed on the first connecting rod; the second connecting rod has an L-shaped structure, and the first connecting rod and the third connecting rod are located at both ends of the second connecting rod and are respectively perpendicular to the plane where the side of the second connecting rod is located;

[0057] When the first drive unit 328 or the second drive unit 329 is working, the rotary motor 3282 starts to work. The moving rotary motor 3282 can drive the output shaft 3283 to rotate, and then the moving output shaft 3283 can drive the drive branch 3284 to rotate.

[0058] At this time, for the first drive unit 328, the moving drive branch 3284 can drive the two first abutting wheels 3285 to move, so that one of the first abutting wheels 3285 can abut against the inner wall of the first placement groove, pushing the moving engagement seat 325 to move, so that the moving engagement seat 325 engages with the stationary engagement seat 326. When separation is required, the first abutting wheel 3285 abuts against the other inner wall of the first placement groove, thereby moving the moving engagement seat 325 away from the stationary engagement seat 326. At this time, the other first abutting wheel 3285 abuts against the toothless surface 327 of the stationary engagement seat 326, thereby limiting the position of the moving engagement seat 325 and preventing the distance between the moving engagement seat 325 and the stationary engagement seat 326 from being too far.

[0059] Regarding the second drive unit 329, the moving drive branch 3284 can drive the second abutment wheel to start working, and in conjunction with the first drive unit 328, it can cause the moving engagement seat 325 to move towards the stationary engagement seat 326, completing the engagement work between the moving engagement seat 325 and the stationary engagement seat 326, and ensuring the smooth operation of the transmission.

[0060] This device, through the cooperation of the first drive unit 328 and the second drive unit 329, can simultaneously apply a clamping force to the moving meshing seat 325 and the stationary meshing seat 326, continuously providing axial clamping force to the moving meshing seat 325. During the meshing process, the two gear teeth 327 are always completely and tightly engaged, and there will be no gap due to equipment vibration. This avoids the problem of local loosening or intermittent separation of the meshing seats during the continuous vibration of the stacker crane 1 during lifting and lowering operation, which would cause intermittent transmission and fluctuations in power generation output. At the same time, the first drive unit 328 and the second drive unit 329 can counteract the reverse axial thrust generated by the transmission, maintaining the meshing seats in tight engagement throughout the process. This solves the problem of the meshing seats being pushed up by the reverse force during the instantaneous torque impact of heavy load descent. In addition, through the above-mentioned structure, the problem of the drive shaft 322 moving and causing the moving meshing seat 325 to deviate under high-speed lifting conditions can also be solved.

[0061] Both the moving engagement seat 325 and the stationary engagement seat 326 are columnar structures, and both the moving engagement seat 325 and the stationary engagement seat 326 at their opposite ends are provided with multiple gear teeth 327.

[0062] The moving engagement seat 325 and the stationary engagement seat 326 are provided with placement grooves in the circumferential direction, wherein the moving engagement seat 325 has a first placement groove and the stationary engagement seat 326 has a second placement groove;

[0063] One of the first abutting wheels 3285 in the first drive unit 328 is located in the first placement groove, and the other first abutting wheel 3285 abuts against the toothless surface 327 of the stationary engagement seat 326 when the moving engagement seat 325 and the stationary engagement seat 326 are separated.

[0064] The second abutting wheel in the second drive unit 329 abuts against the toothless surface 327 of the moving engagement seat 325, and the third connecting rod is located in the second placement groove on the stationary engagement seat 326 when the moving engagement seat 325 and the stationary engagement seat 326 are engaged.

[0065] The switching unit 33 includes a mounting base 331 disposed on the base 31, a first connecting shaft 332 movably disposed on the mounting base 331 and connected to another driven shaft 324, an input gear 3312 sleeved on the first connecting shaft 332, switching parts 333 symmetrically disposed on both sides of the input gear 3312, and an adjustment part disposed on the mounting base 331; one of the switching parts 333 is connected to the protection unit 35; the adjustment part includes an adjustment motor 334 fixedly mounted on the mounting base 331, a rotating shaft 335 connected to the output end of the adjustment motor 334, and a swing rod 33 disposed on the rotating shaft 335. 6. A limiting rod 337 connected to the swing rod 336; two first slide rails 3310 symmetrically arranged on the mounting base 331; a support shaft 3311 located between the two first slide rails 3310; a first slider 339 slidably connected to the first slide rails 3310; a slide plate 338 for connecting the two first sliders 339; and two actuating plates arranged on the mounting base 331; the actuating plates are located on both sides of the input gear 3312; the mounting base 331 is provided with an arc-shaped groove for the movement of the limiting rod 337; the swing rod 336 is provided with an oblong hole and a support rod located in the oblong hole; the support rod is connected to the slide plate 338.

[0066] The switching unit 333 includes a second connecting shaft 3331 movably disposed on the mounting base 331, and an output gear 3332 sleeved on the second connecting shaft 3331; wherein the output gears 3332 in the two switching units 333 have different diameters, wherein the one with a larger diameter is the first gear and the other is the second gear, wherein the protective unit 35 is connected to the second connecting shaft 3331 sleeved on the first gear;

[0067] At normal operating speed, the input gear 3312 meshes with the second gear, which in turn enables the generator to operate in power generation mode via the second connecting shaft 3331. When the driven shaft 324 rotates at a speed greater than the normal speed but within the preset maximum speed range, the regulating motor 334 starts to operate. The rotating motor 334 drives the rotating shaft 335 to move, which in turn drives the swing arm 336 to move. The swing arm 336 then drives the limit rod 337 to move within the arc-shaped groove. The swing arm 336, through the support rod, drives the slide plate 338 to move on the first slide rail 3310. The slide plate 338 then drives the actuating plate to move, thereby changing the position of the input gear 3312 on the first connecting shaft 332. This causes the input gear 3312 to mesh with the first gear, reducing the torque of the second connecting shaft 3331 and preventing excessive torque from the second connecting shaft 3331 during rotation, which could damage the generator.

[0068] The switching unit 33 can drive the toggle plate to work, thereby moving the input gear 3312. Then, the output gear 3332 with different mesh sizes can be switched according to the speed. At high speed, the large diameter gear is switched to reduce the output torque, thereby reducing the impact load from the mechanical transmission end. This not only recovers potential energy normally, but also continuously limits the torque transmitted to the power generation mechanism, effectively preventing overload damage.

[0069] The protective unit 35 includes a main shaft 351 connected to the second connecting shaft 3331, a rotating cover 352 connected to the main shaft 351, a secondary shaft 356 connected to the power generation mechanism, a rotating seat 355 disposed on the secondary shaft 356, and a guide member 354 for connecting the rotating seat 355 and the rotating cover 352; the guide member 354 includes a guide seat 3541 sleeved on the secondary shaft 356, a second slide rail 3542 connected to the guide seat 3541, and a second slider slidably connected to the second slide rail 3542. 3543, and a guide shaft 3544 passing through the second slider 3543 and abutting against the rotating seat 355 and the rotating cover 352; the inner wall of the rotating cover 352 is provided with a driving groove; the inclined surface of the driving groove forms a preset angle with the axial end face of the rotating cover 352; the rotating seat 355 is provided with a plurality of V-shaped guide grooves 3545 in the circumferential direction, and adjacent guide grooves 3545 are connected end to end to form a continuous limiting groove; one end of the guide shaft 3544 is located in the guide groove 3545, and the other end of the guide shaft 3544 is located in the driving groove;

[0070] When the second connecting shaft 3331, which is fitted with the first gear, starts to rotate, the main shaft 351 can be driven to rotate through the coupling or other connector. The moving main shaft 351 can drive the rotating cover 352 to rotate. Through the rotating groove 353 preset in the inner wall of the rotating cover 352, the guide 354 can be driven to move, so that the second slider 3543 can move on the second slide rail 3542. During this process, the two ends of the guide shaft 3544 are respectively located in the rotating groove 353 and the limiting groove. When passing through the two corresponding guide grooves 3545, one end of the guide shaft 3544 can abut against the inner wall of the next V-shaped guide groove 3545 and apply a pushing force to it, so that the rotating seat 355 obtains a rotatable component force, so that the rotating seat 355 can rotate. The moving rotating seat 355 can drive the secondary shaft 356 to rotate, so that the power generation mechanism can generate electricity.

[0071] This device, through the cooperation of the limiting groove formed by the V-shaped guide groove 3545, the driving groove, and the guide 354, can significantly reduce the instantaneous torque transmitted to the power generation mechanism and avoid direct rigid impact on the power generation mechanism, thus preventing overload damage to the bearings and coils. This allows it to continue to generate electricity stably in the high-speed range without disconnecting the kinetic energy recovery link.

[0072] Working principle description: During the stacking of goods by the stacker crane 1, the height of the goods is adjusted by the lifting mechanism 2. The moving lifting mechanism 2 drives the lifting drum shaft to rotate. In conjunction with the operation of the drive unit 32 and the switching unit 33, the power generation mechanism is put into power generation mode, converting the redundant mechanical energy generated when the stacker crane 1 falls into electrical energy. When the lifting drum shaft starts to rotate, since it is connected to one of the driven shafts 324, one of the first drive units 328 and the second drive unit 329 starts to work, thereby driving the drive shaft 322 to rotate. The magnetoelectric rotation speed... The sensor detects the rotation speed of the drive shaft 322. When the rotation speed of the drive shaft 322 is within a predetermined range, the other first drive unit 328 and the second drive unit 329 start to work, thereby driving the other driven shaft 324 to rotate, thus recovering the potential energy when the stacker crane 1 descends. Conversely, when the other first drive unit 328 and the second drive unit 329 are not working, the drive shaft 322 drives the moving meshing seat 325 to idle, avoiding damage to the power generation mechanism due to excessive rotation speed of the drive shaft 322 or failure of the power generation mechanism to work properly due to insufficient rotation speed of the drive shaft 322.

[0073] When the first drive unit 328 or the second drive unit 329 is working, the rotary motor 3282 starts to work. The moving rotary motor 3282 can drive the output shaft 3283 to rotate, and then the moving output shaft 3283 can drive the drive branch 3284 to rotate.

[0074] At this time, for the first drive unit 328, the moving drive branch 3284 can drive the two first abutting wheels 3285 to move, so that one of the first abutting wheels 3285 can abut against the inner wall of the first placement groove, pushing the moving engagement seat 325 to move, so that the moving engagement seat 325 engages with the stationary engagement seat 326. When separation is required, the first abutting wheel 3285 abuts against the other inner wall of the first placement groove, thereby moving the moving engagement seat 325 away from the stationary engagement seat 326. At this time, the other first abutting wheel 3285 abuts against the toothless surface 327 of the stationary engagement seat 326, thereby limiting the position of the moving engagement seat 325 and preventing the distance between the moving engagement seat 325 and the stationary engagement seat 326 from being too far.

[0075] Regarding the second drive unit 329, the moving drive branch 3284 can drive the second abutment wheel to start working, and in conjunction with the first drive unit 328, it can cause the moving engagement seat 325 to move towards the stationary engagement seat 326, completing the engagement work between the moving engagement seat 325 and the stationary engagement seat 326, and ensuring the smooth operation of the transmission.

[0076] At normal operating speed, the input gear 3312 meshes with the second gear, which in turn enables the generator to operate in power generation mode via the second connecting shaft 3331. When the driven shaft 324 rotates at a speed greater than the normal speed but within the preset maximum speed range, the regulating motor 334 starts to operate. The rotating motor 334 drives the rotating shaft 335 to move, which in turn drives the swing arm 336 to move. The swing arm 336 then drives the limit rod 337 to move within the arc-shaped groove. The swing arm 336, through the support rod, drives the slide plate 338 to move on the first slide rail 3310. The slide plate 338 then drives the actuating plate to move, thereby changing the position of the input gear 3312 on the first connecting shaft 332. This causes the input gear 3312 to mesh with the first gear, reducing the torque of the second connecting shaft 3331 and preventing excessive torque from the second connecting shaft 3331 during rotation, which could damage the generator.

[0077] When the second connecting shaft 3331, which is fitted with the first gear, starts to rotate, the main shaft 351 can be driven to rotate through the coupling or other connector. The moving main shaft 351 can drive the rotating cover 352 to rotate. Through the rotating groove 353 preset in the inner wall of the rotating cover 352, the guide member 354 can be driven to move, so that the second slider 3543 can move on the second slide rail 3542. During this process, the two ends of the guide shaft 3544 are located in the rotating groove 353 and the limiting groove, respectively. When passing through the two corresponding guide grooves 3545, one end of the guide shaft 3544 can abut against the inner wall of the next V-shaped guide groove 3545 and apply a pushing force to it, so that the rotating seat 355 obtains a rotatable component force, so that the rotating seat 355 can rotate. The moving rotating seat 355 can drive the secondary shaft 356 to rotate, so that the power generation mechanism can generate electricity.

[0078] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various equivalent transformations can be made to the technical solutions of the present invention, and all such equivalent transformations fall within the protection scope of the present invention.

Claims

1. A stacking kinetic energy recovery and storage device, characterized in that, include: The power generation equipment (3) is installed on the stacker (1) and connected to the lifting drum shaft in the lifting mechanism (2) on the stacker (1); The power generation equipment (3) includes a base (31) fixedly installed on the stacker (1), a drive unit (32) and a housing (34) fixedly installed on the base (31), a switching unit (33) connected to the drive unit (32), a protective unit (35) provided on the switching unit (33), and at least two power generation mechanisms provided in the housing (34); The output of the switching unit (33) and the output of the protection unit (35) are respectively connected to two power generation mechanisms.

2. The stacking kinetic energy recovery and storage device according to claim 1, characterized in that: The drive unit (32) includes a support base (321) fixedly mounted on the base (31), a drive shaft (322) movably mounted on the support base (321), two supports (323) symmetrically mounted on both sides of the support base (321) and fixedly connected to the base (31), a driven shaft (324) mounted on the supports (323) and movably connected to the supports (323), a stationary engagement seat (326) fixedly mounted on the driven shaft (324), two moving engagement seats (325) symmetrically mounted at both ends of the drive shaft (322) and capable of reciprocating along the axis of the drive shaft (322), and two first drive parts (328) and two second drive parts (329) symmetrically mounted on the base (31). The first drive unit (328) and the second drive unit (329) have the same structure; When the moving engagement seat (325) engages with the stationary engagement seat (326), the moving engagement seat (325) maintains a preset distance from the end of the drive shaft (322); One of the driven shafts (324) is connected to the lifting drum shaft.

3. The stacking kinetic energy recovery and storage device according to claim 2, characterized in that: The first drive unit (328) includes a hinge seat (3281) fixedly mounted on the base (31), a rotary motor (3282) fixedly connected to the hinge seat (3281), an output shaft (3283) provided at the output end of the rotary motor (3282), and a drive branch (3284) connected to the output shaft (3283). The drive branch (3284) in the first drive unit (328) is V-shaped, and the free end of the drive branch (3284) is provided with at least two first abutting wheels (3285). The drive branch (3284) in the second drive unit (329) is a combination type, including a first link connected to the output shaft (3283), a second link connected to the first link, a third link disposed on the second link, and a second abutment wheel disposed on the first link; The second link has an L-shaped structure, with the first link and the third link located at both ends of the second link and perpendicular to the plane containing the side of the second link.

4. The stacking kinetic energy recovery and storage device according to claim 3, characterized in that: Both the moving engagement seat (325) and the stationary engagement seat (326) are columnar structures, and both the moving engagement seat (325) and the stationary engagement seat (326) at their opposite ends are provided with multiple gear teeth (327). The moving engagement seat (325) and the stationary engagement seat (326) are provided with placement grooves in the circumferential direction, wherein the moving engagement seat (325) has a first placement groove and the stationary engagement seat (326) has a second placement groove; One of the first abutting wheels (3285) in the first drive unit (328) is located in the first placement groove, and the other first abutting wheel (3285) abuts against the toothless (327) surface of the stationary engagement seat (326) when the moving engagement seat (325) and the stationary engagement seat (326) are separated; The second abutting wheel in the second drive unit (329) abuts against the toothless (327) surface of the moving engagement seat (325), and the third connecting rod is located in the second placement groove on the stationary engagement seat (326) when the moving engagement seat (325) and the stationary engagement seat (326) are engaged.

5. The stacking kinetic energy recovery and storage device according to claim 4, characterized in that: The switching unit (33) includes a mounting base (331) disposed on the base (31), a first connecting shaft (332) movably disposed on the mounting base (331) and connected to another driven shaft (324), an input gear (3312) sleeved on the first connecting shaft (332), a switching part (333) symmetrically disposed on both sides of the input gear (3312), and an adjustment part disposed on the mounting base (331); One of the switching units (333) is connected to the protection unit (35).

6. The stacking kinetic energy recovery and storage device according to claim 5, characterized in that: The adjustment unit includes an adjustment motor (334) fixedly mounted on the mounting base (331), a rotating shaft (335) connected to the output end of the adjustment motor (334), a swing rod (336) disposed on the rotating shaft (335), a limiting rod (337) connected to the swing rod (336), two first slide rails (3310) symmetrically disposed on the mounting base (331), a support shaft (3311) located between the two first slide rails (3310), a first slider (339) slidably connected to the first slide rails (3310), a sliding plate (338) for connecting the two first sliders (339), and two toggle plates disposed on the mounting base (331). The actuating plates are located on both sides of the input gear (3312); The mounting base (331) is provided with an arc-shaped groove for the movement of the limiting rod (337), the swing rod (336) is provided with a waist-shaped hole and a support rod located in the waist-shaped hole, and the support rod is connected to the slide plate (338).

7. The stacking kinetic energy recovery and storage device according to claim 6, characterized in that: The switching unit (333) includes a second connecting shaft (3331) movably disposed on the mounting base (331) and an output gear (3332) sleeved on the second connecting shaft (3331). The output gears (3332) in the two switching parts (333) have different diameters, with the larger diameter being the first gear and the other being the second gear. The protective unit (35) is connected to the second connecting shaft (3331) on which the first gear is sleeved.

8. The stacking kinetic energy recovery and storage device according to claim 7, characterized in that: The protective unit (35) includes a main shaft (351) connected to the second connecting shaft (3331), a rotating cover (352) connected to the main shaft (351), a secondary shaft (356) connected to the power generation mechanism, a rotating seat (355) disposed on the secondary shaft (356), and a guide (354) for connecting the rotating seat (355) and the rotating cover (352).

9. The stacking kinetic energy recovery and storage device according to claim 8, characterized in that: The guide (354) includes a guide seat (3541) sleeved on the sub-shaft (356), a second slide rail (3542) connected to the guide seat (3541), a second slider (3543) slidably connected to the second slide rail (3542), and a guide shaft (3544) passing through the second slider (3543) and abutting against the rotating seat (355) and the rotating cover (352).

10. The stacking kinetic energy recovery and storage device according to claim 9, characterized in that: The inner wall of the rotating cover (352) is provided with a driving groove; the inclined surface of the driving groove forms a preset angle with the axial end face of the rotating cover (352); The rotating seat (355) is provided with multiple V-shaped guide grooves (3545) in the circumferential direction. Adjacent guide grooves (3545) are connected end to end to form a continuous limiting groove. One end of the guide shaft (3544) is located in the guide groove (3545), and the other end of the guide shaft (3544) is located in the drive groove.

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