A multi-cell clamping device

Abstract

The technical scheme of the present application provides a multi-cell clamping device, comprising a frame, a connecting rod assembly, an eccentric shaft and a clamping plate, the frame is rotatably connected with two pairs of main gears; one pair of the main gears corresponds to one connecting rod assembly, the connecting rod assembly comprises a rod body and a drive gear, the drive gear is arranged on the corresponding rod body, and the drive gear is in one-to-one engagement with the main gear and is rotatably connected to the frame; the eccentric shaft and the clamping plate are respectively in one-to-one correspondence with the main gears and the connecting rod assemblies. The beneficial effects of the present application are that the frame, main gear, connecting rod assembly, eccentric shaft and clamping plate make it easy to realize clamping and loosening function, low failure rate, all-mechanical structure, high reliability and durability of the device, low failure rate, and through the connecting rod assembly, it is convenient to use with mechanical hand and other transfer equipment to match the corresponding production line of cell adhesive cleaning.

Description

Technical Field

[0001] This invention relates to the field of power battery recycling technology, and in particular to a multi-cell clamping device. Background Technology

[0002] The rapid development of the new energy vehicle industry will inevitably lead to the rise of the retired power battery recycling industry. Cascade utilization is currently the mainstream treatment method for retired power batteries. At present, the market price of battery cells is about 1,000 yuan / kW·h. The economic value generated by cascade utilization is far higher than that generated by directly scrapping battery cells. Moreover, in terms of environmental protection, the energy consumption and waste gas and waste liquid generated by cascade utilization are far lower than those generated by recycling.

[0003] One current industry challenge in the reuse of battery cells is how to remove them from the battery pack without damage. To ensure the safety and stability of the cells, vehicle manufacturers fill the space between the battery pack and the cells with a large amount of adhesive. Cleaning this adhesive during reuse becomes a major issue. When using chemical reagents to soak the adhesive on the cells, the condition of multiple cells during transportation cannot be guaranteed, inevitably leading to problems such as cells tipping over and corrosion of the plastic layer at the terminal ends. Existing clamping devices, such as the clamping fixture in Chinese patent application number 201820675408.2, use a frame-type housing component to position and clamp multiple cells. While these existing technologies can achieve the effect of clamping multiple cells, the clamping and loosening, as well as the connection between the clamping fixture and the transfer equipment during the adhesive soaking and cleaning process on the production line, are not effectively integrated, making it difficult to adapt to the purpose of clamping multiple cells during adhesive cleaning in reuse.

[0004] Therefore, it is necessary to design a clamp that has functions such as clamping, transporting, and positioning. This patent addresses this problem and the required functions by providing a multi-cell clamping device, which facilitates the centralized processing of adhesive on the cells. Summary of the Invention

[0005] In view of this, it is necessary to provide a multi-cell clamping device to solve the technical problems of inconvenient transfer and connection processes in the cleaning of multi-cell adhesives in the prior art.

[0006] To achieve the above-mentioned technical objectives, the present invention provides a multi-cell clamping device, comprising:

[0007] A frame on which two pairs of main gears are rotatably connected;

[0008] A linkage assembly, wherein a pair of main gears corresponds to one linkage assembly, the linkage assembly includes a rod body and a drive gear, the drive gear is disposed on the corresponding rod body, and the drive gear meshes and rotates with the main gears in a one-to-one correspondence on the frame;

[0009] An eccentric shaft and a clamping plate are provided, wherein the eccentric shaft and the clamping plate correspond one-to-one with the main gear and the connecting rod assembly, respectively, and the clamping plate is hinged between the opposite ends of the eccentric shafts. The other end of the eccentric shaft is connected to the corresponding main gear.

[0010] Furthermore, the rod body includes a straight rod portion, a curved portion, and a connecting rod. There are two straight rod portions. The curved portion is located at the top of the straight rod portion. The connecting rod is located between the two opposite sides of the two straight rod portions. The drive gear is fixed to the bottom end of the corresponding straight rod portion.

[0011] Furthermore, the outer diameter of the main gear is larger than the outer diameter of the drive gear, and the gear ratio between the drive gear and the main gear is less than 1.

[0012] Furthermore, the clamping plate includes a pressure plate, a push plate, and springs. There are several springs, and the two ends of the several springs are respectively connected to the pressure plate and the push plate. The push plate is hinged to the eccentric shaft, and the pressure plate is used for clamping and fitting.

[0013] Furthermore, the pressure plate includes a metal plate and a rubber layer, the rubber layer being fixed to the side of the metal plate away from the push plate.

[0014] Furthermore, the metal plate has several grooves on the side near the push plate for mounting the spring.

[0015] Furthermore, the push plate is provided with a plurality of receiving holes, each corresponding to a spring, for inserting and installing the spring.

[0016] Furthermore, the front and rear side walls of the frame are provided with anti-slip pads.

[0017] Furthermore, the other end of the eccentric shaft is connected to the main gear via a flat key.

[0018] Furthermore, a battery cell assembly is fitted inside the frame, and the two clamping plates are respectively pressed onto both ends of the battery cell assembly.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] 1. The clamping and releasing functions are easy to achieve through the frame, main gear, connecting rod assembly, eccentric shaft and clamping plate, with a low error rate. The all-mechanical structure has high reliability and durability, and a low failure rate. The connecting rod assembly makes it easy to use with transfer equipment such as robotic arms to match the corresponding production line for cleaning battery cell adhesive.

[0021] 2. It adopts a main gear and a drive gear, with a large and a small gear set for transmission, which has a certain degree of locking ability. Under natural conditions, the battery cells are not prone to relative displacement.

[0022] 3. Springs and rubber layers are used as protective measures. The mechanism clamping connection is a flexible connection, which can effectively reduce wear between moving parts, greatly improve the service life of the device, and the rubber layer is easy to replace, which greatly reduces the wear of the base material of the pressure plate. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the multi-cell clamping device according to an embodiment of the present invention;

[0024] Figure 2 This is a front view of the structure of the multi-cell clamping device according to an embodiment of the present invention;

[0025] Figure 3 This is a three-dimensional structural diagram of the linkage assembly according to an embodiment of the present invention;

[0026] Figure 4 This is a three-dimensional structural diagram of the eccentric shaft according to an embodiment of the present invention;

[0027] Figure 5 This is a three-dimensional structural diagram of the clamping plate according to an embodiment of the present invention;

[0028] Figure 6 This is a three-dimensional structural diagram of the pressure plate according to an embodiment of the present invention;

[0029] Figure 7 This is a left view of the push plate structure according to an embodiment of the present invention;

[0030] Figure 8 This is a clamping force diagram according to an embodiment of the present invention;

[0031] In the diagram: 1. Frame; 101. Main gear;

[0032] 2. Linkage assembly; 21. Linkage body; 22. Drive gear;

[0033] 211. Straight rod section; 212. Bent section; 213. Connecting rod;

[0034] 3. Eccentric shaft;

[0035] 4. Clamping plate; 41. Pressure plate; 42. Push plate; 43. Spring;

[0036] 411. Metal plate; 412. Rubber layer;

[0037] 401, Groove; 402, Receiving hole;

[0038] 5. Battery cell assembly. Detailed Implementation

[0039] Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which form part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0040] like Figure 1-2 As shown, this invention provides a multi-cell clamping device, including a frame 1, a connecting rod assembly 2, an eccentric shaft 3, and clamping plates 4. The frame 1 is a square frame used to house multiple battery cells for initial restraint and positioning. The front and rear sides of the battery cells are respectively attached to the front and rear sidewalls of the frame 1, while the left and right sides of the multiple battery cells are respectively attached to the clamping plates 4 located on both sides of the frame 1. Two pairs of main gears 101 are rotatably connected to the frame 1. Each pair of main gears 101 is located on the front and back of the frame 1, and each pair of main gears 101 corresponds to one connecting rod assembly 2. The two connecting rod assemblies 2 are arranged opposite each other on the left and right sides of the frame 1. Pushing and turning the connecting rod assembly 2 can drive the main gears 101 to rotate. The linkage assembly 2 includes a rod body 21 and a drive gear 22. The drive gear 22 is disposed on the corresponding rod body 21. The rod body 21 is used to dock and connect to the transfer device. The transfer device is a device such as a mechanical claw or lasso that can lift the two rod bodies 21 upward and make them tend to converge towards each other. Furthermore, the drive gear 22 meshes and rotates with the main gear 101 in a one-to-one manner on the frame 1. The eccentric shaft 3 and the clamping plate 4 correspond one-to-one with the main gear 101 and the connecting rod assembly 2, respectively. The clamping plate 4 is hinged between the opposite ends of the eccentric shaft 3. The other end of the eccentric shaft 3 is connected to the corresponding main gear 101. When the two rods 21 are pulled and brought together, the drive gear 22 drives the main gear 101 to rotate, thereby driving the eccentric shaft 3 to rotate, so as to move the clamping plate 4 to clamp multiple battery cells and achieve the clamping effect. Conversely, as long as the rod 21 is lifted individually and rotated in the opposite direction, the clamping of the clamping plate 4 can be released. The operation is convenient, and the purpose of clamping and preventing loosening of battery cells is achieved. It is also easy to connect and transfer equipment. In the process of soaking and cleaning with adhesive, multiple battery cells can be clamped and moved, and soaking does not easily affect the stability of the clamping.

[0041] Understandably, the rod 21 is held in place by a mechanical gripper or rope-like tool. (See reference...) Figure 8The lateral components F1x and F2x generated by the pulling forces F1 and F2 act on the gear sets at both ends respectively. Then, the main gear 101 moves the clamping plates 4 at both ends toward the middle through the eccentric shaft 3, thereby clamping the multiple battery cells. When the pressure is large enough, it can overcome the weight of the battery cells and transfer them at will. When the battery cells reach the designated location, simply lift the rod 21 upwards, and the clamping device can be released.

[0042] In one embodiment, to achieve the desired connection with the transfer equipment, see [reference needed]. Figure 3 The rod 21 includes a straight rod portion 211, a bent portion 212, and a connecting rod 213. There are two straight rod portions 211, located on the front and back of the frame 1, respectively. The bent portion 212 is located at the top of the straight rod portion 211 and spans across the top of the frame 1. The two bent portions 212 on opposite rods 21 are bent upwards and away from each other, facilitating contact with a robotic arm or rope-like tool to transmit force and prevent detachment. The connecting rod 213 is located between the two opposite sides of the two straight rod portions 211, connecting them and enabling synchronous rotation. The drive gear 22 is fixedly welded to the bottom end of the corresponding straight rod portion 211.

[0043] Understandably, the curved section 212 is mainly for the hooking of mechanical claws. Lassos or other rope tools can also be fitted onto the curved section 212, thus effectively connecting and transferring equipment. This improves the current situation where it is only for clamping multiple battery cells but cannot adapt to the transfer connection, improves the overall transfer efficiency, and deeply meets the battery cell clamping needs for cleaning multi-cell adhesives.

[0044] In one embodiment, in order to ensure that multiple battery cells can be locked in a natural state, see [reference needed]. Figure 1-3 The outer diameter of the main gear 101 is larger than the outer diameter of the drive gear 22, and the gear ratio between the drive gear 22 and the main gear 101 is less than 1. The larger gear needs a larger torque to drive the smaller gear. Therefore, when the clamp is in its natural state, the clamping plate 4 still has a force that squeezes towards the middle, and the battery cell is always locked and not easy to tip over.

[0045] In one embodiment, to reduce wear during clamping, see [reference needed]. Figure 5-7The clamping plate 4 includes a pressure plate 41, a push plate 42, and springs 43. There are several springs 43, and the two ends of each spring 43 are connected to the pressure plate 41 and the push plate 42 respectively. The springs 43 provide buffering between the push plate 42 and the pressure plate 41. The push plate 42 is hinged to the eccentric shaft 3. The pressure plate 41 is used for clamping and fitting. The spring force of the spring 43 pushes the pressure plate 41 outward. When it contacts the outer surface of the battery cell, the spring 43 begins to compress and provide pressure. The spring 43 mainly plays a buffering role, which makes the rigid connection between the clamping devices become a flexible connection and reduces wear.

[0046] Understandably, spring 43 can be replaced with other elastic materials, as long as it has elastic cushioning function.

[0047] Furthermore, in order to improve fit and anti-slip properties, the pressure plate 41 includes a metal plate 411 and a rubber layer 412. The rubber layer 412 is fixed to the side of the metal plate 411 away from the push plate 42, so that the rubber layer 412 fits the battery cell, thereby improving fit and anti-slip properties.

[0048] Furthermore, in order to make effective use of space, the metal plate 411 has several grooves 401 on the side near the push plate 42 for installing the spring 43, thereby reducing the length of the clamping plate 4 occupied by the spring 43 in a built-in manner.

[0049] Preferably, there are three grooves 401, two pressure plates 41, and two slots are provided on the push plate 42 to accommodate the pressure plates 41.

[0050] Furthermore, in order to prevent the spring 43 from shifting, the push plate 42 is provided with a plurality of receiving holes 402, each of which corresponds to a spring 43 and is used for inserting and installing the spring 43.

[0051] Preferably, there are eighteen receiving holes 402 and eighteen springs 43, and the eighteen receiving holes 402 and springs 43 are evenly distributed on the three grooves 401.

[0052] In one embodiment, in order to stabilize the battery cell in the frame 1, anti-slip pads are provided on the front and rear side walls of the frame 1 to prevent slipping by fitting the battery cell.

[0053] In one embodiment, in order to facilitate the installation and connection of the eccentric shaft 3 and the main gear 101, the other end of the eccentric shaft 3 is connected to the main gear 101 via a flat key to achieve the transmission effect.

[0054] In one embodiment, a battery cell assembly 5 is fitted inside the frame 1, and two clamping plates 4 are respectively pressed onto both ends of the battery cell assembly 5, which consists of multiple battery cells.

[0055] The specific workflow of this invention is as follows: The frame 1 is fitted onto a battery cell assembly 5 composed of multiple battery cells. In its natural state, due to the compression of the spring 43, the pressure plate 41 abuts against both ends of the battery cell assembly 5, initially stabilizing the battery cell assembly 5 and preventing the cells from tilting in its natural state. Then, a mechanical claw connects to the curved portion 212 on the rod 21, applying an upward lifting force. This creates a tendency for the two rods 21 to converge towards each other, driving the drive gear 22 to rotate. Under this transmission, the main gear 101 drives the eccentric shaft 3 to rotate and compress the clamping plate 4, bringing the two clamping plates 4 closer together and clamping the battery cell assembly 5. At this point, transfer can begin. When the battery cell assembly 5 is transferred to the designated position, the mechanical claw is released, and the connecting rod 213 is pulled upwards, causing the rod 21 to rotate in the opposite direction. This causes the eccentric shaft 3 to move the clamping plate 4 away from the battery cell assembly 5, thereby releasing the clamping of the battery cell assembly 5. This clamping device serves to position and transfer the battery cells.

[0056] The entire workflow is now complete, and anything not described in detail in this specification is existing technology known to those skilled in the art.

[0057] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A multi-cell clamping device, characterized by, The utility model relates to a frame, two pairs of main gear are rotatably connected on the frame, a connecting rod assembly is corresponded to one pair of main gear, the connecting rod assembly includes a rod body and a drive gear, the drive gear is arranged on the corresponding rod body, and the drive gear is meshed with the main gear one by one and is rotatably connected on the frame, an eccentric shaft and a clamping plate are corresponded to the main gear and the connecting rod assembly respectively, the clamping plate is hinged between the opposite ends of the opposite eccentric shaft, and the other end of the eccentric shaft is connected with the corresponding main gear. The rod body includes a straight rod part, a bending part and a connecting rod, the number of straight rod parts is two, the bending part is arranged at the top end of the straight rod part, the connecting rod is arranged between the opposite sides of two straight rod parts, wherein the drive gear is fixed at the bottom end of the corresponding straight rod part and is connected to the bending part on the rod body through a mechanical claw to exert an oblique upward pulling force and generate a tendency to make two rod bodies converge to each other. The outer diameter of the main gear is larger than that of the drive gear, and the gear ratio of the drive gear and the main gear is less than 1. The clamping plate includes a pressing plate, a push plate and springs, the number of springs is several, and two ends of the springs are connected with the pressing plate and the push plate respectively, wherein the push plate is hinged with the eccentric shaft, and the pressing plate is used for clamping and adhering. The pressing plate includes a metal plate and a rubber layer, and the rubber layer is fixed on the side of the metal plate away from the push plate.

2. The multi-cell clamping device of claim 1, wherein, The side of the metal plate close to the push plate is provided with a plurality of grooves for installing the springs.

3. The multi-cell clamping device of claim 2, wherein, A plurality of accommodating holes are formed on the push plate, and the accommodating holes are corresponded to the springs one by one for inserting and installing the springs.

4. The multi-cell clamping device of claim 3, wherein, The front side wall and the rear side wall of the frame are provided with anti-skid pads.

5. The multi-cell clamping device of claim 4, wherein, The other end of the eccentric shaft is connected with the main gear through a flat key.

6. The multi-cell clamping device of claim 5, wherein, The inner side of the frame is sleeved with an electric core group, and two clamping plates are respectively pressed and adhered at two ends of the electric core group.

7. The multi-cell clamping device of claim 6, wherein, ​ 8. The multi-cell clamping device of claim 7, wherein, ​ 9. The multi-cell clamping device of claim 8, wherein, ​

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