Auxiliary replacement platform for battery PACK of energy storage power station

Abstract

The invention belongs to the technical field of battery loading, unloading and transportation, and discloses an energy storage power station battery PACK auxiliary replacement platform which is installed on a forklift with certain bearing capacity, the front end part of the forklift has a lifting function, and the replacement platform can be conveyed to the position where loading and unloading can be conducted. The platform is provided with an auxiliary pushing device for the battery plug-in box, a platform height adjusting device and a clamping device for ensuring the conveying safety of the battery plug-in box. The platform has the remarkable advantages of automatic control and the like, and the problem that a traditional battery dismounting and mounting device is inconvenient to use is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of battery loading, unloading and transportation, and particularly relates to an auxiliary replacement platform for battery PACK in an energy storage power station. Background Art

[0002] Battery disassembly and assembly devices are relatively common auxiliary equipment, which save battery transportation time, improve work efficiency and reduce labor costs. Currently, the main battery disassembly and assembly device is a forklift. The forklift is driven to move under the battery, and the front end of the forklift is slowly operated to rise for loading and unloading of battery equipment, then reset, and then the battery is moved onto the transport vehicle.

[0003] However, currently the battery disassembly and assembly technology in China is mainly manual and semi-automatic. The currently used equipment has a high dependence on manual operation, which not only results in low overall efficiency, but also is difficult to guarantee in terms of safety. Especially in the battery disassembly and assembly operation part, it completely depends on manual operation. When the battery is at a high position, scaffolding needs to be manually built to assist. This form of work occupies a large space and consumes a long time. Moreover, there is a lack of a clamping protection device, and the battery is easily damaged during the operation process, thus increasing production costs. At the same time, the front and rear heights of the battery disassembly and assembly platform cannot be adjusted, further exacerbating the construction difficulty of the battery disassembly and assembly operation.

[0004] However, the above-mentioned battery disassembly and assembly device with a forklift as the main body still provides certain convenience during the working process. Especially, the front end of the forklift can transport the lifting platform to the battery plane. In order to further improve the convenience and stability of loading and unloading, reduce labor costs, and ensure the safety of battery loading and unloading, this application designs a fully automatic battery PACK auxiliary replacement platform. This platform does not require scaffolding for auxiliary work, and the entire device can realize functions such as ground driving, flexible control, automatic lifting, clamping and pushing, and auxiliary loading and unloading. Summary of the Invention

[0005] In view of the defects existing in the prior art, this application proposes an auxiliary replacement platform for battery PACK in an energy storage power station. This platform has significant advantages such as automatic control, and solves the problem of inconvenient use of traditional battery disassembly and assembly devices.

[0006] In order to achieve the above objectives, this application provides the following technical solutions: An auxiliary replacement platform for battery PACK in an energy storage power station, which is installed on a forklift with a certain load-bearing capacity. The front part of the forklift has a lifting function and can transport the replacement platform to a position where loading and unloading can be carried out. The platform has an auxiliary pushing device for the battery cassette, the platform has a platform height adjustment device, and the platform has a clamping device to ensure the safety of transporting the battery cassette.

[0007] The front end of the forklift consists of a fork carriage, forks, a retaining shelf, a mast, lifting chains, etc. It has a certain load-bearing capacity and needs to bear the gravity of the PACK auxiliary replacement platform and the battery during loading and unloading. The PACK auxiliary replacement platform is installed on the forks by welding or bolts.

[0008] Furthermore, the PACK auxiliary replacement platform is driven by the front end of the forklift to different heights to achieve the loading and unloading of batteries at different heights.

[0009] The auxiliary pushing device consists of a push plate, a vertical plate, a sliding plate, sliding rails, a ball screw, a coupling, a motor, etc. The entire auxiliary pushing device is driven by the motor, saving manpower and time during the loading and unloading process, and still having excellent pushing performance for heavier batteries.

[0010] Furthermore, between the push plate and the vertical plate, and between the vertical plate and the sliding plate, they are connected and fixed by symmetrically arranged bolts on both sides to achieve even stress, so that it is not easy for components to loosen even when pushing heavier batteries or under long-term operating conditions.

[0011] Furthermore, a hook can be provided at the front end of the push plate, which can be connected to the end loop of the battery through the hook, and combined with the motor control system to realize the forward and reverse movement of the push plate, thereby driving the battery to complete the disassembly operation.

[0012] Furthermore, fixed guardrail parts need to be designed at both ends of the auxiliary pushing platform to realize the limiting function during the battery pushing process and prevent the battery from slipping and being damaged during the pushing process.

[0013] Furthermore, driving rollers are installed on the plane of the pushing platform to reduce the friction force when pushing or pulling the battery and improve the upper limit of the mass of the battery that can be pulled.

[0014] Using the above-mentioned auxiliary pushing device design, the safe auxiliary pushing of batteries with different masses can be realized.

[0015] The platform height adjustment device consists of a motor and a lift. It can change the relative height between the battery and the platform and adjust the angle of the battery to facilitate the installation and disassembly of the battery.

[0016] Furthermore, there are four sets of battery angle adjustment devices in the whole system, which are symmetrically distributed along the center, and can meet the requirements of the angles of different batteries during the battery installation and disassembly work.

[0017] Furthermore, the lift and the plane of the pushing platform are rigidly connected by bolts to ensure that no accidents occur during the lifting or lowering of the battery.

[0018] Using the above-mentioned platform height adjustment device, the angle requirements during the battery loading and unloading process can be met.

[0019] The platform clamping device is composed of a clamping plate, a clamping vertical plate, a clamping sliding plate, a guide rail, a ball screw, a coupling, a motor, etc. The energy transmitted by the motor drives the fixed push plate to move.

[0020] Furthermore, the platform clamping device is divided into two sets and is symmetrically installed on the left and right. The battery is clamped by the clamping plates moving from both sides to ensure the safety of the battery.

[0021] Furthermore, the clamping plate structure has a flexible design, which can adapt to the appearance structures of different-shaped batteries and ensure uniform distribution of the clamping force.

[0022] Furthermore, the surface of the clamping plate can adopt anti-slip textures or coatings to increase the friction with the battery and prevent sliding.

[0023] By using the above platform clamping device, automatic clamping and releasing of the battery can be achieved.

[0024] The battery PACK auxiliary replacement platform has a lightweight design. The support frame adopts a hollow design to reduce the mass, further facilitating the transportation and loading / unloading of heavier batteries.

[0025] Compared with the prior art, the technical solution of this application presents the following beneficial effects: 1. The new energy storage power station battery PACK auxiliary replacement platform has an automatic lifting function and can automatically raise the battery to the same plane as the battery packing box.

[0026] 2. It also has an auxiliary pushing device, which can save manpower and does not require staff to manually push the battery during the loading and unloading of the battery, bringing great convenience.

[0027] 3. The platform is also provided with four groups of battery angle automatic adjustment devices, which can adjust the height and angle of the battery during the installation and disassembly processes to further adapt to the complex loading and unloading environment of the battery.

[0028] 4. The platform also has clamping devices symmetrically installed on both sides, which can achieve clamping and limitation during the battery loading and unloading process, ensure the correct movement trajectory of the battery, and guarantee the safety of the battery throughout the loading and unloading process. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, obtaining other drawings based on these drawings still belongs to the scope of the present invention.

[0030] Figure 1Schematic diagram for manual battery replacement construction Figure 2 General structure diagram of the battery PACK auxiliary replacement platform of the present application Figure 3 Schematic structure diagram of the auxiliary pushing device of the present application Figure 4 Schematic structure diagram of the battery angle adjustment device of the present application Figure 5 Internal schematic diagram of the clamping device of the present application Figure 6 Control block diagram of the battery position automatic lifting system of the present application

[0031] In the figure: 1, outer battery case; 2, inner battery case; 3, battery; 4, battery support seat; 5, scaffolding; 6, staff; 7, forklift head; 8, front end of forklift; 9, platform roller; 10, guide rail; 11, push plate; 12, clamping plate; 13, clamping guide rail; 14, platform support frame; 15, height sensor; 16, vertical plate; 17, sliding plate; 18, limit plate; 19, pushing motor; 20, elevator; 21, position sensor; 22, clamping vertical plate; 23, clamping sliding plate; 24, moving nut Detailed implementation manners

[0032] Next, the technical solution of the battery PACK auxiliary replacement platform of the present application will be described in detail and completely in combination with the drawings in the present application. Referring to the drawings of the present application, the implementation manners of the present application can be clearly understood

[0033] Refer to Figure 1 , there are batteries 3 of each layer in the outer battery case 1, and the batteries 3 are installed on the battery support seats 4 and fill the entire inner battery case 2. When the battery is at a relatively high position, it is necessary to manually build a scaffolding 5 for the staff 6 to carry out battery loading and unloading work, which brings a lot of inconvenience

[0034] Refer to Figure 2 , the present application is a full-automatic auxiliary replacement platform for energy storage power station battery PACK. It is designed based on the forklift head 7, and the front end 8 of the forklift of the forklift head 7 can provide a lifting function, and at the same time, the front end 8 of the forklift is fixedly connected to the platform support frame 14 through bolts

[0035] When carrying out battery loading and unloading work, the staff starts the forklift head 7 to transport the entire platform to the lower part of the battery installation box, and the automatic lifting system receives the signal transmitted by the height sensor 15 to control the lifting of the front end 8 of the forklift, continuously adjusts the position of the platform support frame 14, and finally is on the same plane as the battery 3

[0036] Refer to Figure 1, the guide rail 10 is located at the exact center of the platform support frame 14. Inside the guide rail 10 is a ball screw mechanism, and the ball screw mechanism is connected to the driving motor through a coupling to obtain power. Refer to Figure 2 , the ball screw is connected to the sliding plate 17 through bolts, and the sliding plate 17 is connected to the vertical plate 16 through bolts. The vertical plate 16 and the push plate 11 are also fixed together through bolts. The limiting plate 18 functions as a limit during the battery loading and unloading process to protect the safety of the battery.

[0037] During the battery loading and unloading process, the ball screw mechanism inside the guide rail 10 obtains power from the motor, converts the rotational motion into a linear motion, and thus drives the sliding plate 17 to move within the guide rail track. The vertical plate 16 and the push plate 11 are directly or indirectly fixed to the sliding plate 17 and also perform linear motion. The push plate 5 then pushes the battery to move to complete the auxiliary work.

[0038] Among them, there are many platform rollers 9, and the number can be determined according to the actual size of the platform. They are fixed on both sides of the platform through welding or integrated technology, playing a role in reducing the friction of the battery movement.

[0039] In addition, two or more hooks can be added to the push plate 11 to assist in the pulling operation of the battery.

[0040] Refer to Figure 3 , the pushing motor 12 generates power to drive the elevator 13 to complete the lifting work of the local platform. Inside the elevator 13 is also a ball screw mechanism, which converts the rotational motion of the pushing motor 12 into a linear motion of the platform height.

[0041] Refer to Figure 1 , there are four groups of pushing motors 19, elevators 20 and position sensors 21, which are symmetrically installed at the front and back of the platform, and can meet the angle requirements for different working conditions of battery installation or disassembly. When installing the battery, two groups on the side close to the forklift head 7 work, raising the battery position angle on that side to facilitate the battery to enter the installation cabinet; when disassembling the battery, two groups on the side far from the forklift head 7 work, raising the battery position angle on that side to facilitate the battery to enter the replacement platform.

[0042] Refer to Figure 4 , the clamping guide rails 13 are installed on both sides of the platform support frame 14. Inside the clamping guide rails 13 is also a ball screw mechanism. During the battery auxiliary loading and unloading process, the moving nut 24 inside the ball screw in the clamping guide rail 13 moves linearly. Since the clamping vertical plate 22, the clamping sliding plate 23 and the clamping plate 12 are directly or indirectly fixed to the moving nut 24 through bolts, they also perform linear motion. The clamping plates 12 on both sides move towards the battery in the middle, and finally complete the clamping work to ensure the safety of the battery during the auxiliary loading and unloading process.

[0043] The working principle of the auxiliary replacement platform for the battery PACK of the energy storage power station described above is as follows: During the battery replacement and loading / unloading operation, first, the operator 6 drives the forklift head 7 to move to directly below the front of the outer battery case 1. Then, the battery position automatic lifting system controls the front part 8 of the forklift to rise, receives the signal from the height sensor 15, and continuously adjusts the position of the battery 3 until it is at the same horizontal line as the battery loading position. The control block diagram of the entire lifting control system is as shown in Figure 6 shown. Let the height position of the battery be , and the battery loading position to be installed be . The height of the battery is controlled by PID, and the control objective function of the system is as follows: .

[0044] Next, the motor of the auxiliary drive device runs, the ball screw in the guide rail 10 starts to run, driving the vertical plate 16 and the push plate 11 to move linearly. The push plate 11 is in direct contact with the battery to perform the battery auxiliary pushing action. At the same time, the ball screws in the clamping guide rails 13 on both sides start to work, driving the movement of the clamping vertical plate 22, the clamping sliding plate 23, and the clamping plate 12. The clamping plates 12 on both sides move inward to clamp the battery, preventing the battery from slipping during the loading / unloading process and causing battery damage.

[0045] During the movement of the battery, the battery angle automatic adjustment system starts to work. The adjustment system receives the battery height information from 4 position sensors and controls the 4 push motors 12 at the positions to continuously adjust the angle of the battery for convenient loading / unloading. Taking the driver's position as the reference, let the height position of the front left end of the motor be , the front right end height position be , the rear left end height position be , and the rear right end height position be . The inclination position of the battery is controlled by PID. When the battery needs to be tilted left and right, the objective function is , and when the battery needs to be tilted forward and backward, the objective function is . The specific control objective function is as follows: ; .

[0046] Thus, the object of the present invention is achieved.

[0047] It is obvious to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, in any regard, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Thus, all changes that fall within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. An auxiliary replacement platform for battery PACK in an energy storage power station, characterized in that, This platform is installed on a forklift with a certain load-bearing capacity. The front part of the forklift has a lifting function and can transport the replacement platform to a position where loading and unloading can be carried out. The platform is equipped with an auxiliary pushing device for the battery cassette, a platform height adjustment device, and a clamping device to ensure the safe transportation of the battery cassette. The front end of the forklift consists of a fork frame, forks, a retaining shelf, a mast, and lifting chains. It has a certain load-bearing capacity and needs to bear the gravity of the PACK auxiliary replacement platform and the loaded and unloaded batteries. The PACK auxiliary replacement platform is installed on the forks by welding or bolts.

2. The auxiliary replacement platform for the battery PACK of an energy storage power station according to claim 1, characterized in that, The PACK auxiliary replacement platform is driven by the front end of the forklift to different heights to achieve the loading and unloading of batteries at different heights. The auxiliary pushing device consists of a push plate, a vertical plate, a sliding plate, a sliding guide rail, a ball screw, a coupling, and a motor part. The entire auxiliary pushing device is driven by the motor, saving manpower and time during the loading and unloading process, and still having excellent pushing performance for heavier batteries.

3. The battery PACK auxiliary replacement platform of an energy storage power station according to claim 1, characterized in that, Between the push plate and the vertical plate, and between the vertical plate and the sliding plate, they are connected and fixed by symmetrically arranged bolts on both sides to achieve even stress, so that it is not easy for components to loosen when pushing heavier batteries or under long-term operating conditions.

4. The battery PACK auxiliary replacement platform for an energy storage power station according to claim 1, characterized in that, A hook can be provided at the front end of the push plate, which can be connected to the end loop of the battery through the hook. Combined with the motor control system, the push plate moves forward and backward, thereby driving the battery to complete the disassembly operation.

5. The auxiliary replacement platform for the energy storage power station battery PACK according to claim 1, wherein, Fixed guardrails also need to be designed at both ends of the auxiliary pushing platform to achieve the limit function during the battery pushing process and prevent battery damage caused by the battery slipping during the pushing process.

6. The auxiliary replacement platform for the battery PACK of an energy storage power station according to claim 1, characterized in that Drive rollers are installed on the plane of the pushing platform to reduce the friction during pushing or pulling the battery and increase the upper limit of the mass of the battery that can be pulled. The platform height adjustment device consists of a motor and a lift. It can change the relative height between the battery and the platform and adjust the angle of the battery to facilitate the installation and disassembly of the battery.

7. An auxiliary replacement platform for a battery PACK of an energy storage power station according to claim 1, characterized in that, There are four sets of battery angle adjustment devices in the whole system, which are symmetrically distributed along the center to meet the requirements of the angles of different batteries during the battery installation and disassembly work.

8. The auxiliary replacement platform for the battery PACK of an energy storage power station according to claim 1, wherein, The lift and the plane of the pushing platform are rigidly connected by bolts to ensure that no accidents occur during the lifting or lowering of the battery. The platform clamping device consists of a clamping plate, a clamping vertical plate, a clamping sliding plate, a guide rail, a ball screw, a coupling, and a motor. The fixed push plate is driven by the energy transmitted from the motor.

9. The auxiliary replacement platform for the battery PACK of an energy storage power station according to claim 1, wherein, The platform clamping device is divided into two sets and is installed symmetrically on the left and right. The battery is clamped by the clamping plates moving from both sides to ensure the safety of the battery.

10. A battery PACK auxiliary replacement platform for an energy storage power station according to claim 1, characterized in that, The clamping plate structure has a flexible design and can adapt to the appearance structures of different-shaped batteries to ensure uniform distribution of the clamping force. The surface of the clamping plate can adopt anti-slip textures or coatings to increase the friction with the battery and prevent sliding.

Images