Chain-lifting battery swapping robot

Abstract

The utility model provides a kind of chain hoist battery replacement robot belongs to battery replacement technical field, solve the problem of not meeting high load demand in prior art.It includes walking mechanism, two opposite fixed frames are fixedly arranged on walking mechanism, lifting frame is movably arranged between two fixed frames, at least two interval guide rails are vertically arranged on fixed frame, sliding block is connected on lifting frame, lifting chain is rotatably arranged on fixed frame, lifting chain is connected with lifting drive assembly;Lifting drive assembly includes first transmission shaft rotatably installed on walking mechanism, second driven sprocket is fixedly sleeved on first transmission shaft, the upper end of fixed frame is provided with fixed shaft, third driven sprocket is rotatably sleeved on fixed shaft.The length direction of fixed shaft is parallel with the telescopic direction of telescopic fork, then the both ends of fixed shaft can be connected on fixed frame, fixed shaft can keep not deforming under large load, so that third driven sprocket and lifting chain can stably rotate.

Description

Technical Field

[0001] This utility model belongs to the field of battery swapping technology, specifically to a chain-lifted battery swapping robot. Background Technology

[0002] With the increasing number of new energy electric vehicles, the demand for battery swapping stations is growing. Currently, various types of battery swapping robots have emerged on the market, with the two most mainstream types being wire rope lifting systems and rail-mounted forklift lifting systems. Wire rope lifting systems suffer from insufficient positioning accuracy, poor wind resistance, and susceptibility to fatigue wear, requiring frequent maintenance or replacement; their reliability also needs improvement. Rail-mounted forklift lifting systems, on the other hand, offer better overall rigidity, accurate positioning, strong wind resistance, and are maintenance-free during the warranty period, thus gaining widespread application.

[0003] As batteries for electric heavy-duty trucks and mining trucks develop towards larger capacities, their weight is also increasing, thus placing higher demands on the rated load capacity of battery swapping robots. Existing technology, such as the chain-lifting battery swapping robot disclosed in patent publication number CN222434030U, incorporates the features of this patent. Figure 1 As shown, the transmission gear 212 is rotatably mounted on the fixed part 2. However, the transmission gear 212 is only rotatably connected to the fixed part 2 through a fixed shaft at one end. When the load is increased, the fixed shaft of the transmission gear 212 will be bent and deformed under force, affecting the normal lifting and lowering of the battery swapping robot. Utility Model Content

[0004] To address the aforementioned problems, the purpose of this utility model is to provide a chain-lifted battery swapping robot. With the length direction of the fixed shaft parallel to the extension direction of the telescopic fork, both ends of the fixed shaft can be connected to a fixed frame. The fixed shaft can remain undeformed under heavy loads, allowing the third driven sprocket and the lifting chain to rotate stably. Furthermore, two guide rails are provided, with the lifting chain positioned between them, further enhancing the lifting stability of the battery swapping robot to meet its high load-bearing requirements.

[0005] The technical solution adopted in this utility model is as follows: A chain-lift battery-swapping robot includes a walking mechanism with two opposing fixed frames fixedly mounted on it. A lifting frame is movably mounted between the two fixed frames, and a telescopic fork is mounted on the lifting frame. At least two spaced guide rails are vertically mounted on the fixed frames, and a slider that slides with the guide rails is connected to the lifting frame. A lifting chain is rotatably mounted on the fixed frames, fixedly connected to the lifting frame and located between the two guide rails. The lifting chain is connected to a lifting drive assembly. The lifting drive assembly includes a first drive shaft rotatably mounted on the walking mechanism, a second driven sprocket fixedly mounted on the first drive shaft, a fixed shaft at the upper end of the fixed frames, and a third driven sprocket rotatably mounted on the fixed shaft. The lifting chain is engaged with the second and third driven sprockets. The length direction of the first drive shaft and the fixed shaft is parallel to the extension direction of the telescopic fork.

[0006] Preferably, the walking mechanism is equipped with a lifting drive motor, the lifting drive motor is connected to a drive sprocket, a first driven sprocket is fixedly sleeved on the first transmission shaft, and a transmission chain is meshed on the drive sprocket and the first driven sprocket.

[0007] Preferably, the walking mechanism includes a walking main frame, at least two walking wheels are rotatably disposed at the bottom of the walking main frame, a walking drive motor is installed at the bottom of the walking main frame, and the walking drive motor is connected to a second transmission shaft connected to the walking wheels.

[0008] Preferably, the bottom of the walking main frame is provided with at least two limiting wheels located on both sides of the walking wheels.

[0009] Preferably, the bottom of the walking main frame is provided with at least two anti-tipping components located on both sides of the walking wheels.

[0010] Preferably, the side walls of the walking main frame are provided with buffer blocks.

[0011] Preferably, both the fixed frame and the lifting frame are equipped with diagonal support rods.

[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are: Both ends of the fixed shaft are rotatably connected to the fixed frame. The fixed shaft can remain undeformed under heavy loads, allowing the third driven sprocket and the lifting chain to rotate stably. Furthermore, two guide rails are provided, and the lifting chain is positioned between the two guide rails, which further improves the lifting stability of the battery swapping robot to meet the high load requirements of the battery swapping robot. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a side-view perspective structural diagram provided for an embodiment of the present utility model; Figure 2 A bottom-view perspective view of the three-dimensional structure provided for an embodiment of this utility model; Figure 3 for Figure 1 Enlarged structural diagram at point A in the middle; Figure 4 This is a schematic diagram of the lifting drive component structure provided in an embodiment of the present utility model; Figure 5 for Figure 2 Enlarged structural diagram at point B.

[0015] Reference numerals: 100-I-shaped track; 1-Traveling main frame; 2-Fixed frame; 3-Lifting frame; 4-Telescopic forks; 5-Lifting chain; 6-Angled support rod; 7-Traveling drive motor; 8-Second transmission shaft; 9-Lifting drive assembly; 901-Lifting drive motor; 902-Drive sprocket; 903-Transmission chain; 904-First driven sprocket; 905-First transmission shaft; 906-Second driven sprocket; 907-Third driven sprocket; 908-Fixed shaft; 10-Buffer block; 11-Traveling wheel; 12-Limit wheel; 13-Anti-tipping component; 14-Guide rail. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0017] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0018] In the description of this utility model, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" appear to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0019] The following is combined Figures 1-5 This utility model will be described in detail.

[0020] Example: A chain-lift battery swapping robot includes a walking mechanism with two opposing fixed frames 2 fixedly mounted on it. A lifting frame 3 is movably mounted between the two fixed frames 2, and a telescopic fork 4 is mounted on the lifting frame 3. At least two spaced guide rails 14 are vertically mounted on the fixed frames 2. A slider that slides with the guide rails 14 is connected to the lifting frame 3. A lifting chain 5 is rotatably mounted on the fixed frame 2 and fixedly connected to the lifting frame 3, located between the two guide rails 14. The lifting chain 5 is connected to a lifting drive assembly 9. The lifting drive assembly 9 includes a first drive shaft 905 rotatably mounted on the walking mechanism, a second driven sprocket 906 fixedly mounted on the first drive shaft 905, a fixed shaft 908 at the upper end of the fixed frame 2, a third driven sprocket 907 rotatably mounted on the fixed shaft 908, and the lifting chain 5 meshing with the second driven sprocket 906 and the third driven sprocket 907. The length direction of the first drive shaft 905 and the fixed shaft 908 is parallel to the extension direction of the telescopic fork 4.

[0021] After the length direction of the fixed shaft 908 is parallel to the extension direction of the telescopic fork 4, both ends of the fixed shaft 908 can be connected to the fixed frame 2. The fixed shaft 908 can remain undeformed under heavy load, so that the third driven sprocket 907 and the lifting chain 5 can rotate stably. Furthermore, two guide rails 14 are set, and the lifting chain 5 is placed between the two guide rails 14, which can further improve the lifting stability of the battery swapping robot to meet the high load requirements of the battery swapping robot.

[0022] In this embodiment, the lifting chain 5 is not connected at both ends, and the beginning and end of the lifting chain 5 are respectively fixedly connected to the lifting frame 3. In some other embodiments, the lifting chain 5 can also be connected at both ends, and the lifting frame 3 can be partially fixed to the lifting chain 5, so that the lifting chain 5 drives the lifting frame 3 to rise and fall while rotating around the second driven sprocket 906 and the third driven sprocket 907. This will not be elaborated here.

[0023] A lifting drive motor 901 is installed on the walking mechanism. The lifting drive motor 901 is connected to a drive sprocket 902. A first driven sprocket 904 is fixedly sleeved on the first transmission shaft 905. A transmission chain 903 is meshed on the drive sprocket 902 and the first driven sprocket 904.

[0024] The lifting drive assembly 9 drives the lifting chain 5 to rotate, and the lifting frame 3 achieves lifting and lowering through the cooperation of the slider and the guide rail 14 on the fixed frame 2. After lifting, the lifting frame 3 adjusts the height position of the telescopic forks 4, thereby hoisting a fully charged battery onto the vehicle or removing a depleted battery from the vehicle. Figure 2 As shown, two sets of lifting drive components 9 are provided, which are used to drive the rotation of the left and right lifting chains 5 respectively. At the same time, the lifting chains 5 are used from both sides of the telescopic fork 4 to provide synchronous lifting power, so that the lifting action is evenly stressed, ensuring the force balance of the battery swapping robot and improving the reliability and safety of the battery swapping robot.

[0025] The specific operation process of the lifting drive assembly 9 is as follows: the lifting drive motor 901 drives the drive sprocket 902 to rotate, and the drive sprocket 902 drives the first driven sprocket 904 and the second driven sprocket 906 to rotate synchronously through the transmission chain 903. The second driven sprocket 906 then drives the lifting chain 5 to rotate, thereby causing the lifting frame 3 to move in the vertical direction.

[0026] In existing technologies, a single motor typically drives two or more parts simultaneously for lifting and lowering. The output torque of the drive motor usually needs to be redirected and distributed using a gearbox such as a bevel gearbox before it can drive the components. However, the lifting drive motor 901 of this application does not require changing the torque transmission direction of the output shaft, thus maximizing the utilization of the output power of the drive assembly 9. In the embodiments of this application, two lifting chains 5 and two transmission chains 903 are shown on each side, and the number can be increased or decreased as needed. The lifting drive motor 901 and the first transmission shaft 905 are installed below the walking main frame 1 to avoid obstructing the lifting frame 3, ensuring that the lifting frame 3 has sufficient space to move.

[0027] The walking mechanism includes a main walking frame 1, with at least two rotatable wheels 11 rotatably mounted on the bottom of the main walking frame 1. A walking drive motor 7 is mounted on the bottom of the main walking frame 1, and the walking drive motor 7 is connected to a second drive shaft 8 connected to the walking wheels 11. At least two auxiliary wheels are rotatably mounted on the bottom of the main walking frame 1 to cooperate with the walking wheels 11 in moving the battery swapping robot. The walking drive motor 7 drives the two walking wheels 11 to rotate through the second drive shaft 8, thereby moving the entire battery swapping robot on the I-shaped track 100, thereby adjusting the horizontal position of the telescopic forks 4 for battery swapping operations.

[0028] The bottom of the main walking frame 1 is provided with at least two limiting wheels 12 located on both sides of the walking wheels 11. The limiting wheels 12 abut against both sides of the I-shaped track 100, so that the battery swapping robot can move stably.

[0029] At least two anti-tipping components 13 are provided at the bottom of the walking main frame 1, located on both sides of the walking wheels 11. The two anti-tipping components 13 are L-shaped structures arranged opposite each other. After they cooperate with each other on both sides of the I-shaped track 100, they play an anti-tipping role in the movement of the battery swapping robot, ensuring the stable operation of the battery swapping robot.

[0030] The side wall of the walking main frame 1 is provided with a buffer block 10. After the battery swapping robot moves to one end of the I-shaped track 100 and collides with the fixing part at the end of the I-shaped track 100, the battery swapping robot can be prevented from moving out of the I-shaped track 100. The buffer block 10 can contact the fixing part to buffer the impact force of the collision.

[0031] Both the fixed frame 2 and the lifting frame 3 are equipped with diagonal support rods 6. The diagonal support rods 6 are connected to the fixed frame 2 and the lifting frame 3 to form a triangular support structure, which can increase the structural strength of the fixed frame 2 and the lifting frame 3.

[0032] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A chain-lift battery swapping robot, comprising a walking mechanism, wherein two opposing fixed frames (2) are fixedly mounted on the walking mechanism, and a lifting frame (3) is movably mounted between the two fixed frames (2), and a telescopic fork (4) is mounted on the lifting frame (3), characterized in that, The fixed frame (2) is vertically provided with at least two spaced guide rails (14), the lifting frame (3) is connected with a slider that slides with the guide rails (14), the fixed frame (2) is rotatably provided with a lifting chain (5) that is fixedly connected to the lifting frame (3) and located between the two guide rails (14), the lifting chain (5) is connected with a lifting drive assembly (9); the lifting drive assembly (9) includes a first drive shaft (905) rotatably mounted on the walking mechanism, a second driven sprocket (906) is fixedly sleeved on the first drive shaft (905), a fixed shaft (908) is provided at the upper end of the fixed frame (2), a third driven sprocket (907) is rotatably sleeved on the fixed shaft (908), the lifting chain (5) is meshed and sleeved on the second driven sprocket (906) and the third driven sprocket (907), the length direction of the first drive shaft (905) and the fixed shaft (908) is parallel to the extension direction of the telescopic fork (4).

2. The chain-lifting battery swapping robot according to claim 1, characterized in that, The walking mechanism is equipped with a lifting drive motor (901), which is connected to a drive sprocket (902). A first driven sprocket (904) is fixedly sleeved on the first transmission shaft (905). A transmission chain (903) is meshed on the drive sprocket (902) and the first driven sprocket (904).

3. The chain-lifting battery swapping robot according to claim 1, characterized in that, The walking mechanism includes a walking main frame (1), at least two walking wheels (11) are rotatably provided at the bottom of the walking main frame (1), a walking drive motor (7) is installed at the bottom of the walking main frame (1), and the walking drive motor (7) is connected to a second transmission shaft (8) connected to the walking wheels (11).

4. The chain-lifting battery swapping robot according to claim 3, characterized in that, The bottom of the walking main frame (1) is provided with at least two limiting wheels (12) located on both sides of the walking wheels (11).

5. A chain-lifting battery swapping robot according to claim 3, characterized in that, The bottom of the walking main frame (1) is provided with at least two anti-tipping components (13) located on both sides of the walking wheel (11).

6. The chain-lifting battery swapping robot according to claim 3, characterized in that, The side walls of the walking main frame (1) are provided with buffer blocks (10).

7. The chain-lifting battery swapping robot according to claim 1, characterized in that, Both the fixed frame (2) and the lifting frame (3) are equipped with inclined support rods (6).

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