Transport vehicle, graphitization furnace transport system and transport method

Abstract

The invention provides a transport vehicle, a graphitization furnace transport system and a transport method. The transport vehicle comprises a plurality of vehicle bodies which are sequentially connected end to end in the X direction. Each vehicle body comprises a vehicle frame, trays arranged at the two ends of the vehicle frame in the X direction, an inner pull rod connected to one end of the vehicle frame, an outer pull rod connected to the other end of the vehicle frame and wheels arranged on the periphery of the bottom of the vehicle frame and rolling in the X direction. The inner pull rod of one vehicle body is connected with the outer pull rod of the other vehicle body through a pin shaft; the tray is installed above the frame through a first lifting cylinder, and the first lifting cylinder is used for driving the tray to ascend and descend in the Z direction. The graphitization furnace can be conveyed to the next station, displacement between the stations is achieved, assembly line work is achieved, the arrangement difficulty caused by various procedures of a single station is reduced, and the production efficiency is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of graphitization production, and particularly relates to a transport vehicle, a graphitization furnace transport system and a transport method. Background Art

[0002] Environmentally friendly and sustainable energy systems have developed rapidly, such as batteries for electric vehicles and battery energy storage systems. Existing batteries mainly include a positive electrode material, a negative electrode material, a separator, an electrolyte, etc. The negative electrode material is generally processed using a graphitization furnace.

[0003] Most graphitization furnaces are of a fixed structure and are immovable. Due to the complex graphitization process, the fixed graphitization furnace needs to complete all processes at one station, which not only increases the difficulty of arranging equipment on the station and the station tools required for processing, but also this fixed process method greatly reduces the production efficiency. Summary of the Invention

[0004] The purpose of the present invention is to provide a transport vehicle, a graphitization furnace transport system and a transport method that can realize the assembly line operation of the graphitization furnace, and greatly improve the production efficiency.

[0005] The technical solution of the present invention is: a transport vehicle, including a plurality of vehicle bodies connected end to end in sequence along the X direction. The vehicle body includes a vehicle frame, trays provided at both ends of the vehicle frame in the X direction, an inner pull rod connected to one end of the vehicle frame, an outer pull rod connected to the other end of the vehicle frame, and wheels provided along the periphery of the bottom of the vehicle frame and rolling in the X direction; the inner pull rod of one vehicle body is connected to the outer pull rod of another vehicle body through a pin shaft;

[0006] The tray is installed above the vehicle frame through a first lifting cylinder, and the first lifting cylinder is used to drive the tray to lift in the Z direction.

[0007] Preferably, the lower surface of the tray is provided with a guide rod extending vertically downward, and the vehicle frame is provided with a guide hole for the guide rod to pass through, and the guide rod is in clearance fit with the guide hole.

[0008] Preferably, guide plates extending vertically downward are provided on both sides of the tray in the X direction, and guide blocks are provided on both sides of the vehicle frame in the X direction, and the guide plates are adapted to the guide blocks.

[0009] Preferably, second lifting cylinders capable of lifting and lowering in the Z direction are provided around the vehicle frame, and the second lifting cylinders are provided on the upper surface of the vehicle frame.

[0010] Preferably, the tray includes a bracket, a first bearing seat and a roller. The first bearing seats are arranged in multiple groups along the Y direction at the upper end of the bracket. Two first bearing seats are arranged in each group in the X direction. A roller is rotatably installed between the two first bearing seats in each group. The first lifting cylinder is connected to the bottom of the bracket.

[0011] Preferably, a U-shaped groove is provided at the end of the outer tie rod, and the end of the inner tie rod is adapted to be placed in the U-shaped groove.

[0012] The present invention also provides a graphitization furnace transportation system, which includes a pier, a graphitization furnace located at the upper end of the pier, and the above-mentioned transport vehicle. The tray of the transport vehicle can be lifted to form a first position and a second position. In the first position, the tray contacts the graphitization furnace, and a spacing H is formed between the graphitization furnace and the pier. The transport vehicle travels inside the pier through the wheels. In the second position, a spacing E is formed between the tray and the graphitization furnace, and the graphitization furnace contacts the pier.

[0013] Preferably, a plurality of roller track plates extending along the Y direction are provided on the bottom surface of the graphitization furnace, and the roller track plates are arranged in one-to-one correspondence with the trays.

[0014] The present invention also provides a transportation method using the above-mentioned graphitization furnace transportation system, including:

[0015] Step 1: Start the wheels and drive the transport vehicle to travel inside the pier;

[0016] Step 2: Stop when the transport vehicle travels below the graphitization furnace;

[0017] Step 3: Start the first lifting cylinder to raise the tray. The tray contacts the graphitization furnace, and the tray continues to rise to lift the graphitization furnace until a spacing H is formed between the graphitization furnace and the pier, and then stop the first lifting cylinder;

[0018] Step 4: Start the wheels and drive the transport vehicle to travel inside the pier; stop when the transport vehicle travels to the required working station;

[0019] Step 5: Start the first lifting cylinder to lower the tray. When the graphitization furnace contacts the pier, continue to lower the tray until a spacing E is formed between the tray and the graphitization furnace; the transportation is completed.

[0020] Compared with the related art, the beneficial effects of the present invention are as follows:

[0021] First, the present invention designs a transport vehicle, which can transport the graphitization furnace to the next working station, realize the displacement between working stations, realize the assembly line operation, reduce the difficulty of layout in a single working station due to numerous processes, and greatly improve the production efficiency;

[0022] Second, the transport vehicle is formed by assembling multiple car bodies, which can be appropriately assembled according to the length of the graphitization furnace, can meet the use of graphitization furnaces of different models, and has better versatility;

[0023] Third, piers for the transport vehicle to shuttle under the graphitization furnace are arranged. Only one transport vehicle is needed in the same pier. After reasonably arranging the operation contents of each work station, there is no need to consider the problem of cross operation. In addition, the piers can stably support the graphitization furnace during operation;

[0024] Fourth, the transport vehicle can move the graphitization furnace up and down and back and forth. It has a compact and small structure, is flexible to use, and has high reliability. Description of the Drawings

[0025] Figure 1 It is a three-dimensional structure diagram of the graphitization furnace transport system provided by the present invention with the piers removed;

[0026] Figure 2 It is a three-dimensional structure diagram of the transport vehicle provided by the present invention;

[0027] Figure 3 It is a three-dimensional structure diagram of the car body;

[0028] Figure 4 It is a front view structure diagram of the car body;

[0029] Figure 5 It is along Figure 4 The sectional view taken along A-A;

[0030] Figure 6 It is a front view structure diagram of the transport vehicle walking under the graphitization furnace;

[0031] Figure 7 It is a cross-sectional view of the transport vehicle walking under the graphitization furnace;

[0032] Figure 8 It is a front view structure diagram of the transport vehicle lifting the graphitization furnace;

[0033] Figure 9 It is a cross-sectional view of the transport vehicle lifting the graphitization furnace.

[0034] In the drawings: 1. Graphitization furnace; 101. Roller plate; 102. Bottom surface; 2. Transport vehicle; 3. Car body; 4. Pin shaft; 5. Outer pull rod; 51. U-shaped groove; 6. First bearing seat; 7. Roller; 8. Bracket; 9. Guide plate; 10. Second lifting cylinder; 11. Inner pull rod; 12. Wheel; 13. Second bearing seat; 14. Axle; 15. Frame; 16. First lifting cylinder; 17. Guide rod; 18. Pier; 19. Guide block; 20. Tray. Detailed Embodiment

[0035] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments. It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other. For the convenience of description, words such as "upper", "lower", "left", and "right" hereinafter only indicate the same directions as the upper, lower, left, and right directions of the accompanying drawings themselves, and do not limit the structure.

[0036] As Figure 1 , Figure 7 shown, a graphitization furnace transportation system provided in this embodiment includes a pier 18, a graphitization furnace 1 located at the upper end of the pier 18, and a transport vehicle 2 for carrying the graphitization furnace 1 and moving it along the pier 18 between various workstations.

[0037] As Figure 2 shown, the transport vehicle 2 includes a plurality of vehicle bodies 3 connected end to end in sequence along the X direction. The vehicle body 3 includes a vehicle frame 15, trays 20 provided at both ends of the vehicle frame 15 in the X direction, an inner pull rod 11 connected to one end of the vehicle frame 15, an outer pull rod 5 connected to the other end of the vehicle frame 15, and wheels 12 provided around the bottom of the vehicle frame 15 and rolling along the X direction. The inner pull rod 11 of one vehicle body 3 is connected to the outer pull rod 5 of another vehicle body 3 through a pin shaft 4. As Figure 3 shown, a second bearing seat 13 is provided on the vehicle frame 15, a vehicle axle 14 is provided on the wheel 12, and the vehicle axle 14 is assembled on the second bearing seat 13.

[0038] As Figure 3 shown, the tray 20 is installed above the vehicle frame 15 through a first lifting cylinder 16, and the first lifting cylinder 16 is used to drive the tray 20 to lift and lower along the Z direction. The tray 20 includes a bracket 8, a first bearing seat 6, and a roller 7. The first bearing seats 6 are arranged in multiple groups along the Y direction at the upper end of the bracket 8, two first bearing seats 6 are arranged in the X direction in each group, and a roller 7 is rotatably installed between the two first bearing seats 6 in each group. The first lifting cylinder 16 is connected to the bottom of the bracket 8.

[0039] The above X direction is the length direction of the transport vehicle 2, the Y direction is the width direction of the transport vehicle 2, and the Z direction is the height direction of the transport vehicle 2.

[0040] As Figure 3 , Figure 4 , Figure 5 shown, the lower surface of the bracket 8 is provided with a guide rod 17 extending vertically downward, the vehicle frame 15 is provided with a guide hole 151 for the guide rod 17 to pass through, and the guide rod 17 is in clearance fit with the guide hole 151. The guide rod 17 guides the lifting of the tray 20.

[0041] On both sides of the bracket 8 in the X direction, there are guide plates 9 extending vertically downward. On both sides of the vehicle frame 15 in the X direction, there are guide blocks 19, and the guide plates 9 are adapted to the guide blocks 19.

[0042] Around the vehicle frame 15, there are second lifting cylinders 10 that can lift and lower in the Z direction. The second lifting cylinders 10 are arranged on the upper surface of the vehicle frame 15. The first lifting cylinder 16 outputs the driving force for lifting the tray 20. The second lifting cylinders 10 support the graphitization furnace 1 after lifting. Together with the tray 20, they support the graphitization furnace 1 to ensure stability during transportation.

[0043] At the end of the outer pull rod 5, there is a U-shaped groove 51, and the end of the inner pull rod 11 is adapted to be in the U-shaped groove 51. The number of vehicle bodies 3 on the transport vehicle 3 is selected according to the length of the graphitization furnace 1.

[0044] As Figure 6 shown, on the bottom surface 102 of the graphitization furnace 1, there are a plurality of roller track plates 101 extending in the Y direction, and the roller track plates 101 are arranged in one-to-one correspondence with the tray 20.

[0045] The tray 20 of the transport vehicle 2 is lifted and lowered to form a first position and a second position; as Figure 8 、 Figure 9 shown, in the first position, the tray 20 is in contact with the graphitization furnace 1, and a spacing H is formed between the lower surface of the roller track plate 101 of the graphitization furnace 1 and the upper surface of the support pier 18 (as Figure 9 shown), and the transport vehicle 2 travels inside the support pier 18 through the wheels 12. As Figure 6 、 Figure 7 shown, in the second position, a spacing E is formed between the upper surface of the roller 7 of the tray 20 and the lower surface of the roller track plate 101 of the graphitization furnace 1, and a spacing F is formed between the second lifting cylinder 10 and the lower surface of the roller track plate 101 of the graphitization furnace 1. The graphitization furnace 1 is in contact with the support pier 18.

[0046] The present invention also provides a transportation method using the above-mentioned graphitization furnace transportation system, including:

[0047] S1, start the wheels 12 and drive the transport vehicle 2 to travel inside the support pier 18;

[0048] S2, as Figure 6 、 Figure 7 shown, when the transport vehicle 2 travels to the lower part of the graphitization furnace 1, stop. At this time, a spacing E is formed between the lower surface of the roller track plate 101 and the upper surface of the roller 7, and a spacing F is formed between the bottom surface 102 and the upper surface of the second lifting cylinder 10, and the transport vehicle 2 is overall lower than the graphitization furnace 1;

[0049] S3, as Figure 8, Figure 9 As shown, start the first lifting cylinder 16 to raise the tray 20. The tray 20 contacts the graphitization furnace 1. The tray 20 continues to rise to lift the graphitization furnace 1 until a distance H is formed between the graphitization furnace 1 and the pier 18, and then stop the first lifting cylinder 16. At this time, the bracket 8 rises a distance G, and G = H + E.

[0050] S4, as Figure 8 , Figure 9 As shown, start the second lifting cylinder 10 to extend until it supports the bottom surface 102 of the graphitization furnace 1. At this time, the stroke of the extension of the second lifting cylinder 10 is H + F.

[0051] S5, start the wheels 12 to drive the transport vehicle 2 to travel inside the pier 18. Stop when the transport vehicle 2 travels to the required working position.

[0052] S6, start the first lifting cylinder 16 to lower the tray 20. When the graphitization furnace 1 contacts the pier 18, continue to lower the tray 20 until a distance E is formed between the tray 20 and the graphitization furnace 1. The transportation is completed.

[0053] The above are only embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be included in the patent protection scope of the present invention by the same token.

Claims

1. A transport vehicle, characterized in that, It includes multiple car bodies (3) connected end to end in sequence along the X direction. The car body (3) includes a frame (15), trays (20) provided at both ends of the frame (15) in the X direction, an inner pull rod (11) connected to one end of the frame (15), an outer pull rod (5) connected to the other end of the frame (15), and wheels (12) provided around the bottom of the frame (15) and rolling along the X direction; the inner pull rod (11) of one car body (3) is connected to the outer pull rod (5) of another car body (3) through a pin shaft (4). The tray (20) is installed above the frame (15) through a first lifting cylinder (16), and the first lifting cylinder (16) is used to drive the tray (20) to lift and lower along the Z direction.

2. The transport vehicle according to claim 1, wherein The lower surface of the tray (20) is provided with a guide rod (17) extending vertically downward, and the frame (15) is provided with a guide hole (151) for the guide rod (17) to pass through, and the guide rod (17) is in clearance fit with the guide hole (151).

3. The transport vehicle according to claim 1, wherein Guide plates (9) extending vertically downward are provided on both sides of the tray (20) in the X direction, and guide blocks (19) are provided on both sides of the frame (15) in the X direction, and the guide plates (9) are adapted to the guide blocks (19).

4. The transport vehicle according to claim 1, wherein Second lifting cylinders (10) capable of lifting and lowering in the Z direction are provided around the frame (15), and the second lifting cylinders (10) are provided on the upper surface of the frame (15).

5. The transport vehicle according to claim 1, characterized in that, The tray (20) includes a bracket (8), a first bearing seat (6) and a roller (7). The first bearing seats (6) are arranged in multiple groups along the Y direction at the upper end of the bracket (8), two first bearing seats (6) are arranged in the X direction in each group, and a roller (7) is rotatably installed between the two first bearing seats (6) in each group. The first lifting cylinder (16) is connected to the bottom of the bracket (8).

6. The transport vehicle according to claim 1, characterized in that, A U-shaped groove (51) is provided at the end of the outer pull rod (5), and the end of the inner pull rod (11) is adapted to be in the U-shaped groove (51).

7. A graphitization furnace transportation system, comprising a pier (18) and a graphitization furnace (1) located at the upper end of the pier (18), characterized in that, It also includes the transport vehicle according to any one of claims 1-6. The tray (20) of the transport vehicle is lifted and lowered to form a first position and a second position; in the first position, the tray (20) is in contact with the graphitization furnace (1), and a distance H is formed between the graphitization furnace (1) and the pier (18), and the transport vehicle travels inside the pier (18) through the wheels (12); in the second position, a distance E is formed between the tray (20) and the graphitization furnace (1), and the graphitization furnace (1) is in contact with the pier (18).

8. The graphitization furnace transportation system according to claim 7, characterized in that A plurality of roller track plates (101) extending along the Y direction are provided on the bottom surface (102) of the graphitization furnace (1), and the roller track plates (101) are arranged in one-to-one correspondence with the trays (20).

9. A transportation method using the graphitization furnace transportation system described in claim 7 or 8, characterized in that, It includes: Step 1, start the wheels (12) and drive the transport vehicle to travel inside the pier (18); Step 2, stop when the transport vehicle travels below the graphitization furnace (1); Step 3: Start the first lifting cylinder (16) to raise the tray (20). The tray (20) contacts the graphitization furnace (1), and the tray (20) continues to rise to lift the graphitization furnace (1) until a spacing H is formed between the graphitization furnace (1) and the pier (18), then stop the first lifting cylinder (16); Step 4: Start the wheels (12) to drive the transport vehicle to move inside the pier (18); stop when the transport vehicle reaches the required working position; Step 5: Start the first lifting cylinder (16) to lower the tray (20). After the graphitization furnace (1) contacts the pier (18), continue to lower the tray (20) until a spacing E is formed between the tray (20) and the graphitization furnace (1); the transportation is completed.

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