Rapid bolt locking device for redox flow battery pile

Abstract

The invention belongs to the field of quick locking devices, particularly relates to a quick locking device for a flow battery pile bolt, and aims to solve the problems that the locking efficiency of an existing pile nut is low, and the locking forces of nuts on the same straight line on the two sides of a pile are inconsistent, so that the thickness of the pile is nonuniform, and the locking force is poor. In order to solve the problem of poor sealing effect caused by non-uniform pressure borne by an internal sealing structure of a galvanic pile, the invention provides the following scheme: the device comprises a device main body and the galvanic pile, the galvanic pile is connected with a plurality of nuts, the device main body comprises two fixing plates, each of the two fixing plates is provided with three mounting holes, and the mounting holes are formed in the fixing plates. And a driving synchronous belt wheel, a middle synchronous belt wheel and a driven synchronous belt wheel are rotationally connected into the six mounting holes correspondingly, two nuts can be locked at the same time, the machining efficiency is improved, it is guaranteed that the locking force of the two nuts is consistent, and leakage caused by the fact that a sealing gasket is not compacted due to the fact that the locking force is unbalanced is effectively avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of quick locking devices, and in particular to a quick locking device for bolts of a flow battery stack. Background Art

[0002] The battery stack is the earliest battery. It is a large battery stack made of many units composed of different active metal sheets and acid solution films. The traditional method of tightening the nuts of the battery stack is to tighten the nuts of the battery stack one by one using an electric wrench or a manual handle.

[0003] In the prior art, the efficiency of locking the stack nuts is low, and the locking force of the nuts on the same straight line on both sides of the stack is inconsistent, which will cause uneven thickness of the stack and, more importantly, uneven pressure on the sealing structure inside the stack, resulting in poor sealing effect. For this reason, we propose a liquid flow battery stack bolt quick locking device to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to solve the problems in the prior art that the locking efficiency of the nuts on the battery stack is low, and the locking force of the nuts on the same straight line on both sides of the battery stack is inconsistent, which will cause uneven thickness of the battery stack and more importantly, uneven pressure on the internal sealing structure of the battery stack, resulting in poor sealing effect. A quick locking device for liquid flow battery stack bolts is proposed to solve the problems.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A rapid locking device for bolts of a flow battery stack comprises a device body and a stack, wherein the stack is connected to a plurality of nuts, the device body comprises two fixed plates, each of the two fixed plates is provided with three mounting holes, a driving synchronous pulley, an intermediate synchronous pulley and a driven synchronous pulley are rotatably connected in the six mounting holes, the driving synchronous pulley and the intermediate synchronous pulley are connected to the same short synchronous belt, the intermediate synchronous pulley and the driven synchronous pulley are connected to the same long synchronous belt, and a handle is installed on the top of the fixed plate.

[0007] Preferably, a hexagonal hole is opened in the middle of the intermediate synchronous pulley and the driven synchronous pulley, and the hexagonal hole is consistent with the size of the nut used in the fuel cell stack.

[0008] Preferably, a square hole is provided in the middle of the active synchronous pulley, and an electric wrench is connected to the square hole.

[0009] Preferably, the tooth shape of the long synchronous belt is consistent with the tooth shape of the intermediate synchronous belt pulley and the driven synchronous belt pulley.

[0010] Preferably, the tooth profile of the short synchronous belt is consistent with the tooth profiles of the driving synchronous belt pulley and the intermediate synchronous belt pulley.

[0011] Preferably, a tensioning wheel is connected to the fixing plate, and a first tensioning wheel adjusting nut and a second tensioning wheel adjusting nut are connected to the tensioning wheel.

[0012] Preferably, the electric wrench tenon is inserted into the square hole of the active synchronous pulley, and the rotation of the electric wrench tenon drives the active synchronous pulley to rotate, the active synchronous pulley drives the intermediate synchronous pulley to rotate through the short synchronous belt, and the intermediate synchronous pulley drives the driven synchronous pulley to rotate through the long synchronous belt.

[0013] In the present invention, the beneficial effects of the rapid locking device for bolts of flow battery stack are as follows:

[0014] This solution drives the middle synchronous pulley and the driven synchronous pulley through a long synchronous belt, and locks the two nuts at the same time, thereby improving processing efficiency. In addition, the locking nuts of the middle synchronous pulley and the driven synchronous pulley driven by the long synchronous belt are locked at the same time, ensuring the consistency of the locking force of the battery stack nuts and effectively avoiding leakage caused by uncompacted sealing gaskets due to unbalanced locking force.

[0015] The present invention can lock two nuts at the same time, thus improving processing efficiency and ensuring that the locking forces of the two nuts are consistent, thereby effectively avoiding leakage caused by uncompacted sealing gaskets due to unbalanced locking forces. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic structural diagram of the overall appearance of a rapid locking device for bolts of a flow battery stack proposed by the present invention;

[0017] Figure 2 This is a schematic diagram of the internal structure of a rapid locking device for bolts of a flow battery stack proposed by the present invention;

[0018] Figure 3 This is a structural schematic diagram of a synchronous belt tensioning mechanism of a rapid locking device for a flow battery stack bolt proposed by the present invention;

[0019] Figure 4 This is a schematic structural diagram of an assembly workpiece of a rapid locking device for bolts of a flow battery stack proposed by the present invention.

[0020] In the figure: 1. Driven synchronous pulley; 2. Fixed plate; 3. Handle; 4. Intermediate synchronous pulley; 5. Active synchronous pulley; 6. Long synchronous belt; 7. Short synchronous belt; 8. Device body; 9. Electric wrench; 10. Battery stack; 11. Nut; 12. Tensioning wheel; 13. First tensioning wheel adjustment nut; 14. Second tensioning wheel locking nut. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] Example

[0023] Reference Figure 1 and Figure 2 A rapid locking device for a flow battery stack bolt comprises a device body 8 and a stack 10, a plurality of nuts 11 are connected to the stack 10, the device body 8 comprises two fixing plates 2, the shape of the fixing plates 2 is not limited, three mounting holes are provided on the two fixing plates 2, and a driving synchronous pulley 5, an intermediate synchronous pulley 4 and a driven synchronous pulley 1 are rotatably connected in the six mounting holes, the driving synchronous pulley 5 and the intermediate synchronous pulley 4 are connected with the same short synchronous belt 7, the intermediate synchronous pulley 4 and the driven synchronous pulley 1 are connected with the same long synchronous belt 6, a handle 3 is installed on the top of the fixing plate 2, and the long The tooth shape of the synchronous belt 6 is consistent with the tooth shape of the intermediate synchronous pulley 4 and the driven synchronous pulley 1, the tooth shape of the short synchronous belt 7 is consistent with the tooth shape of the driving synchronous pulley 5 and the intermediate synchronous pulley 4, the form of the driven synchronous pulley 1, the intermediate synchronous pulley 4 and the driving synchronous pulley 5 is not limited, and can be arc teeth, trapezoidal teeth or other tooth shapes, the form of the driven synchronous pulley 1, the intermediate synchronous pulley 4 and the driving synchronous pulley 5 is not limited, and can be sprockets or gears or smooth pulleys, the form of the long synchronous belt 6 and the short synchronous belt 7 is not limited, and can be toothed synchronous belts, V-shaped synchronous belts, trapezoidal synchronous belts or roller chains, round link chains, etc.

[0024] Reference Figure 3 and Figure 4 A tensioning wheel 12 is connected to the fixed plate 2, and a first tensioning wheel adjusting nut 13 and a second tensioning wheel adjusting nut 14 are connected to the tensioning wheel 12. A square hole is opened in the middle of the active synchronous pulley 5, and an electric wrench 9 is connected in the square hole. Hexagonal holes are opened in the middle of the intermediate synchronous pulley 4 and the driven synchronous pulley 1. The hexagonal hole is consistent in size with the nut 11 used in the battery stack 10. The tenon of the electric wrench 9 is inserted into the square hole of the active synchronous pulley 5. The rotation of the tenon of the electric wrench 9 drives the active synchronous pulley 5 to rotate. The active synchronous pulley 5 drives the intermediate synchronous pulley 4 to rotate through the short synchronous belt 7, and the intermediate synchronous pulley 4 drives the driven synchronous pulley 1 to rotate through the long synchronous belt 6.

[0025] In this embodiment, during operation, the screw, spring, nut 11, gasket and other components on the battery stack 10 are manually pre-installed on the battery stack 10, and then the hexagonal holes of the intermediate synchronous pulley 4 and the driven synchronous pulley 1 are sleeved on the outside of the two nuts 11 on the same straight line of the battery stack 10, and then the tenon of the electric wrench 9 is installed into the square hole of the active synchronous pulley 5, and then the electric wrench 9 is turned on, and the nut 11 is tightened until the required force is reached. Since the intermediate synchronous pulley 4 and the driven synchronous pulley 1 that lock the two nuts 11 are driven by a long synchronous belt 6, the locking force of the nut 11 after locking is consistent. In addition, a handle 3 for easy operation is provided, and a tensioning device for the long synchronous belt 6 is also provided. By loosening the second tensioning wheel adjustment nut 14, the tensioning wheel 12 can be moved forward and backward to tighten the long synchronous belt 6, and then the first tensioning wheel adjustment nut 13 is locked to fix the tensioning wheel 12.

[0026] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A rapid bolt locking device for a flow battery stack, comprising a device body (8) and a stack (10), characterized in that: The battery stack (10) is connected to a plurality of nuts (11), and the device body (8) comprises two fixed plates (2), each of which is provided with three mounting holes, and the six mounting holes are respectively rotatably connected to a driving synchronous pulley (5), an intermediate synchronous pulley (4) and a driven synchronous pulley (1), the driving synchronous pulley (5) and the intermediate synchronous pulley (4) are connected to the same short synchronous belt (7), and the intermediate synchronous pulley (4) and the driven synchronous pulley (1) are connected to the same long synchronous belt (6), and a handle (3) is installed on the top of the fixed plate (2).

2. A rapid locking device for bolts of a flow battery stack according to claim 1, characterized in that: A square hole is provided in the middle of the active synchronous pulley (5), and an electric wrench (9) is connected in the square hole.

3. A rapid bolt locking device for a flow battery stack according to claim 2, characterized in that: The middle of the intermediate synchronous pulley (4) and the driven synchronous pulley (1) are both provided with a hexagonal hole, and the hexagonal hole is consistent in size with the nut (11) used for the battery stack (10).

4. A rapid bolt locking device for a flow battery stack according to claim 3, characterized in that: The tooth shape of the short synchronous belt (7) is consistent with the tooth shape of the driving synchronous belt pulley (5) and the intermediate synchronous belt pulley (4).

5. A rapid locking device for bolts of a flow battery stack according to claim 4, characterized in that: The tooth shape of the long synchronous belt (6) is consistent with the tooth shape of the intermediate synchronous belt pulley (4) and the driven synchronous belt pulley (1).

6. A rapid bolt locking device for a flow battery stack according to claim 5, characterized in that: The tenon of the electric wrench (9) is inserted into the square hole of the active synchronous belt pulley (5), and the rotation of the tenon of the electric wrench (9) drives the active synchronous belt pulley (5) to rotate, and the active synchronous belt pulley (5) drives the intermediate synchronous belt pulley (4) to rotate through the short synchronous belt (7), and the intermediate synchronous belt pulley (4) drives the driven synchronous belt pulley (1) to rotate through the long synchronous belt (6).

7. A rapid bolt locking device for a flow battery stack according to claim 6, characterized in that: The fixing plate (2) is connected to a tension wheel (12), and the tension wheel (12) is connected to a first tension wheel adjusting nut (13) and a second tension wheel adjusting nut (14).

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