Graphitization furnace electrically conductive trolley

Abstract

This application provides a conductive trolley for a graphitization furnace, including a trolley body. Two symmetrically distributed boxes are fixed to the upper part of the trolley body. Each box has a door at one end and a through hole at the other end. An insulating plate capable of sealing the through hole is located inside each box. A hydraulic cylinder is connected to the insulating plate, enabling its movement. Conductive plates are mounted on the insulating plates, and a conductive structure connects the two conductive plates. A rotatable shaft fixedly connected to the door is located at the lower part of the trolley body. A gear is fixedly mounted on the shaft, meshing with a matching rack. A sliding rod fixedly connected to the rack is movable along the direction of movement of the insulating plate. A return spring is connected between the sliding rod and the box body. When the return spring is in a free state, the door is located below the box body, and the sliding rod extends into the interior of the box body. This application can automatically protect the conductive plates through the box body, preventing the conductive plates from being exposed to air and coming into contact with moisture, which would affect the conductivity.

Description

Technical Field

[0001] This application relates to graphitization technology, and more particularly to a conductive trolley for a graphitization furnace. Background Technology

[0002] In the graphitization process of lithium battery anode materials, power is generally supplied to the furnace head electrodes of the Atchison graphitization furnace via a conductive trolley.

[0003] Currently, one type of conductive trolley includes a trolley body with two conductive plates that can move towards or away from each other via a hydraulic system. The two conductive plates are connected by a retractable conductive structure. When power is supplied, the two conductive plates move away from each other. Power can be supplied when one conductive plate presses against the furnace head electrode and the other conductive plate presses against the busbar.

[0004] However, when the conductive carriage is idle, the conductive plate is directly exposed to the air, and the conductive plate is easily exposed to moisture in the air, which affects the conductivity. Utility Model Content

[0005] This application provides a conductive trolley for a graphitization furnace to solve the problem that when existing conductive trolleys are idle, the conductive plates are directly exposed to the air, making them susceptible to contact with moisture in the air and affecting the conductivity.

[0006] This application provides a conductive trolley for a graphitization furnace, including a trolley body, with two symmetrically distributed boxes fixed on the upper part of the trolley body. Each box has a door at one end and a through hole at the other end.

[0007] The interior of the housing is equipped with an insulating plate that can seal through holes. The insulating plate is connected to a hydraulic cylinder that can move it. A conductive plate is installed on the insulating plate, and a conductive structure connects the two conductive plates.

[0008] The lower part of the box is provided with a rotating shaft that is fixedly connected to the box door. A gear is fixed on the rotating shaft, and the gear meshes with a rack that is adapted to it. A slide rod that can move along the moving direction of the insulating plate is fixedly connected to the rack.

[0009] A return spring is connected between the slide rod and the box body. When the return spring is in a free state, the box door is located below the box body, and the slide rod extends into the interior of the box body.

[0010] Optionally, the lower end of the housing is fixed with a sliding groove, and the rack engages with the sliding groove and is slidably connected.

[0011] Optionally, the number of gears is two, and the two gears are symmetrically distributed about the center of the rotating shaft.

[0012] Optionally, a matching rubber ring I is fixed at the contact end between the box body and the box door;

[0013] A suitable rubber ring II is fixed at the contact end between the insulating plate and the box body.

[0014] Optionally, the upper part of the box is provided with a cylinder communicating with its interior, and the interior of the cylinder is provided with a desiccant.

[0015] Optionally, the cylinder is a tubular structure that runs vertically through the top and bottom. The lower end of the cylinder passes through the upper end of the box and is sealed to the box. The upper end of the cylinder is provided with a removable sealing cover. Inside the cylinder, there is a mesh cylinder located below the sealing cover and with a gap between it and the sealing cover. The mesh cylinder is fixedly connected to the sealing cover by a vertical rod. The inside of the cylinder is provided with a desiccant.

[0016] Optionally, the conductive structure includes two symmetrically distributed telescopic rods, which are located between and connected to the two insulating plates. A spiral cable is sleeved on the telescopic rod, and the cable is connected to both conductive plates.

[0017] The graphitization furnace conductive trolley provided in this application has two symmetrically distributed boxes fixed to the upper part of the trolley body. One end of each box has a door, and the other end has a through hole. Inside each box is an insulating plate that can seal the through hole. The insulating plate is connected to a hydraulic cylinder that moves it. Conductive plates are mounted on the insulating plate, and a conductive structure connects the two conductive plates. The lower part of the box has a rotatable shaft fixed to the door. A gear is fixed on the shaft, meshing with a matching rack. The rack is fixedly connected to a sliding rod that moves along the direction of movement of the insulating plate. A return spring connects the sliding rod to the box. When the return spring is in a free state, the door is located below the box, and the sliding rod extends into the box. In use, the hydraulic cylinder moves the insulating plate, which in turn moves the conductive plate. When the insulating plate moves towards the door, the return spring returns to its original position, causing the sliding rod to move in the same direction as the insulating plate. The sliding rod moves the rack synchronously, which in turn rotates the gear. The gear, through the shaft, drives the box... The door rotates, opening the enclosure. When the return spring is in a free state, the enclosure door is located below the enclosure, and the insulating plate disengages from the slide rod. The insulating plate continues to move, causing the conductive plate to move out of the enclosure. When one conductive plate presses firmly against the furnace electrode and the other presses firmly against the busbar, the movement of the insulating plate stops. At this point, the busbar and the furnace electrode are connected, conducting electricity. After conductivity is complete, the insulating plate is moved back into the enclosure. When the insulating plate contacts the slide rod and continues to move, it pushes the slide rod to move synchronously. The slide rod drives the rack to move, which in turn drives the gear to rotate. The gear, through a shaft, drives the enclosure door to rotate, closing the enclosure door. When the insulating plate presses firmly against the inner wall of the enclosure and seals the through-hole, the movement of the insulating plate stops. At this point, the enclosure door presses firmly against the enclosure, the return spring is stretched, and the conductive plate is located inside the enclosure. The enclosure isolates the conductive plate from the outside environment, protecting it from moisture exposure and affecting conductivity. This automatic protection eliminates the need for manual operation. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A three-dimensional structural schematic diagram of the conductive trolley for the graphitization furnace provided in an embodiment of this application;

[0020] Figure 2 A partial three-dimensional structural diagram of the conductive trolley for the graphitization furnace provided in the embodiments of this application. Figure I ;

[0021] Figure 3 A partial three-dimensional structural diagram of the conductive trolley for the graphitization furnace provided in the embodiments of this application. Figure II ;

[0022] Figure 4 A partial front view cross-sectional structural diagram of the graphitization furnace conductive trolley after the door is closed, as provided in an embodiment of this application;

[0023] Figure 5 A partial front view cross-sectional structural diagram of the graphitization furnace conductive trolley after the door is opened, as provided in an embodiment of this application;

[0024] Figure 6 This is a partial front view cross-sectional structural diagram of the conductive trolley of the graphitization furnace provided in an embodiment of this application.

[0025] Explanation of reference numerals in the attached drawings: 1. Vehicle body; 2. Box body; 3. Box door; 4. Through hole; 5. Insulating plate; 6. Hydraulic cylinder; 7. Conductive plate; 8. Conductive structure; 81. Telescopic rod; 82. Cable; 9. Shaft; 10. Mounting lug; 11. Gear; 12. Rack; 13. Slide rod; 14. Connecting rod; 15. Return spring; 16. Limiting plate; 17. Slide groove; 18. Rubber ring I; 19. Rubber ring II; 20. Cylinder; 21. Sealing cover; 22. Mesh cylinder; 23. Vertical rod. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application are described clearly and completely below. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are also within the scope of protection of this application.

[0027] like Figures 1-6 As shown:

[0028] An embodiment of this application provides a graphitization furnace conductive trolley, which includes a trolley body 1. Two symmetrically distributed boxes 2 are fixed on the upper part of the trolley body 1. One end of the box 2 is provided with a box door 3, and the other end of the box 2 is provided with a through hole 4.

[0029] The interior of the housing 2 is equipped with an insulating plate 5 that can seal the through hole 4. The insulating plate 5 is connected to a hydraulic cylinder 6 that can move it. Specifically, the hydraulic cylinder 6 is fixed to the upper part of the vehicle body 1. The hydraulic cylinder 6 is connected to a hydraulic station that can control the extension and retraction of the hydraulic cylinder 6. The free end of the hydraulic cylinder 6 passes through the through hole 4 and is connected to the insulating plate 5. The insulating plate 5, the housing 2, and the door 3 are all made of rigid PVC (polyvinyl chloride).

[0030] A conductive plate 7 is installed on the insulating plate 5, and a conductive structure 8 connects the two conductive plates 7. Specifically, the conductive plate 7 is fixed on the side of the insulating plate 5 away from the through hole 4. The conductive structure 8 is a telescopic structure. One end of the conductive structure 8 passes through the through hole 4 of one of the housings 2 and is electrically connected to one of the conductive plates 7. The other end of the conductive structure 8 passes through the through hole 4 of the other housing 2 and is electrically connected to the other conductive plate 7.

[0031] The lower part of the housing 2 is provided with a rotating shaft 9 that is rotatable and fixedly connected to the housing door 3. Specifically, two mounting ears 10 are fixed at the lower end of the housing 2, and the rotating shaft 9 is located between the two mounting ears 10. The two ends of the shaft are rotatably connected to the two mounting ears 10 through bearings. A gear 11 is fixed on the rotating shaft 9, and the gear 11 meshes with a rack 12 that is adapted to it. Specifically, the rack 12 is located at the upper end of the gear 11 and meshes with the rack 12. A slide rod 13 that can move along the moving direction of the insulating plate 5 is fixedly connected to the rack 12. Specifically, the rack 12 is parallel to the slide rod 13, and a connecting rod 14 is fixed to one end of the rack 12. The connecting rod 14 is fixedly connected to the slide rod 13, and the slide rod 13 passes through one end of the housing 2 where a through hole 4 is provided and is slidably connected to that end.

[0032] A return spring 15 is connected between the slide rod 13 and the housing 2. Specifically, the return spring 15 is sleeved on the slide rod 13, one end of the return spring 15 is fixedly connected to the outer wall of the housing 2, and the other end of the return spring 15 is fixedly connected to the connecting rod 14.

[0033] In this embodiment, a limiting plate 16 is fixed to one end of the slide rod 13 that extends into the box 2, and a limiting groove corresponding to the limiting plate 16 is provided on the inner wall of the box 2. When the insulating plate 5 closes the through hole 4, the limiting plate 16 is located inside the limiting groove, which limits the slide rod 13 and prevents the slide rod 13 from leaving the box 2.

[0034] When the return spring 15 is in the free state, the door 3 is located below the box body 2, and the slide bar 13 extends into the interior of the box body 2.

[0035] In this embodiment, the vehicle body 1, hydraulic cylinder 6, hydraulic station and conductive plate 7 are all existing technologies and will not be described in detail.

[0036] In use, the hydraulic cylinder 6 extends, causing the insulating plate 5 to move towards the door 3. The insulating plate 5 then moves the conductive plate 7 synchronously, while the return spring 15 returns to its original position. The return spring 15 then moves the slide rod 13 towards the door 3, which in turn moves the rack 12 synchronously. The rack 12's movement causes the gear 11 to rotate, which in turn rotates the door 3 via the shaft 9, opening the door 3. When the return spring 15 is in a free state, the door 3 rotates to the bottom of the housing 2, and the insulating plate 5 disengages from the slide rod 13. The insulating plate 5 continues to move, causing the conductive plate 7 to move out of the housing 2. When one conductive plate 7 presses firmly against the furnace head electrode and the other conductive plate 7 presses firmly against the busbar, the movement of the insulating plate 5 stops. At this point, the busbar and the furnace head electrode are connected, and electrical conductivity is achieved. After the conductivity is completed, the hydraulic cylinder 6 is shortened, and the hydraulic cylinder 6 moves the insulating plate 5 into the housing 2. When the insulating plate 5 contacts the slide rod 13 and continues to move, the insulating plate 5 pushes the slide rod 13 to move synchronously with it. The slide rod 13 drives the rack 12 to move, and the rack 12 drives the gear 11 to rotate. The gear 11 drives the housing door 3 to rotate through the rotating shaft 9 to close the housing door 3. When the insulating plate 5 presses tightly against the inner wall of the housing 2 and closes the through hole 4, the movement of the insulating plate 5 stops. At this time, the housing door 3 presses tightly against the housing 2, the return spring 15 is stretched, and the conductive plate 7 is located inside the housing 2. The housing 2 isolates the conductive plate 7 from the outside world and protects the conductive plate 7. Therefore, when not conducting conductivity, it can prevent the conductive plate 7 from being exposed to the air and coming into contact with moisture in the air, which would affect the conductivity. Moreover, while the insulating plate 5 is moving, it can automatically open or close the housing door 3 and automatically close the through hole 4, thus automatically protecting the conductive plate 7 without manual operation.

[0037] In some embodiments of this application, a slide groove 17 is fixed at the lower end of the housing 2, and the rack 12 is engaged with and slidably connected to the slide groove 17. The slide groove 17 limits the rack 12 so that the rack 12 can move smoothly.

[0038] In this embodiment, the slide 17 is composed of two symmetrically distributed L-shaped plates. The vertical section of the L-shaped plate is fixedly connected to the bottom of the housing 2. The rack 12 is located between the two L-shaped plates, and the rack 12 simultaneously contacts and slides with the bottom of the housing 2 and the L-shaped plates. The two L-shaped plates limit the rack 12, so that the rack 12 can only move along the moving direction of the insulating plate 5 to drive the gear 11 to rotate.

[0039] In some embodiments of this application, there are two gears 11, and the two gears 11 are symmetrically distributed about the center of the rotating shaft 9.

[0040] In this embodiment, by setting two symmetrically distributed gears 11, the two gears 11 synchronously drive the rotating shaft 9 to rotate, and the rotating shaft 9 can smoothly drive the box door 3 to rotate.

[0041] In some embodiments of this application, a suitable rubber ring I18 is fixed at the contact end between the box body 2 and the box door 3 for sealing between the box door 3 and the box body 2.

[0042] A matching rubber ring II19 is fixed at the contact end between the insulating plate 5 and the housing 2 to improve the effect of the insulating plate 5 in sealing the through hole 4.

[0043] In some embodiments of this application, the upper part of the housing 2 is provided with a cylinder 20 communicating with its interior. The cylinder 20 contains a desiccant, which absorbs the moisture in the housing 2, so that after the conductive plate 7 is located inside the housing 2, the housing 2 provides a dry environment for the conductive plate 7, thereby improving the protective effect of the conductive plate 7.

[0044] In some embodiments of this application, the cylinder 20 is a tubular structure extending vertically. The lower end of the cylinder 20 penetrates the upper end of the box 2 and is sealed to the box 2. The upper end of the cylinder 20 is provided with a removable sealing cap 21. Specifically, the inner ring wall of the sealing cap 21 has an internal thread structure, and the upper outer wall of the cylinder 20 has an external thread structure. The internal thread structure and the external thread structure are engaged. Inside the cylinder 20, there is a mesh cylinder 22 located below the sealing cap 21 and having a gap with the sealing cap 21. The mesh cylinder 22 is a hollow structure with an open upper end. The mesh cylinder 22 is fixedly connected to the sealing cap 21 by a vertical rod 23. Specifically, one end of the vertical rod 23 is fixedly connected to the inner bottom of the mesh cylinder 22, and the other end of the vertical rod 23 is fixedly connected to the inner lower end of the sealing cap 21. The cylinder 20 contains a desiccant.

[0045] In this embodiment, the desiccant is inorganic silica gel particles.

[0046] When in use, after removing the sealing cap 21, lift the sealing cap 21 to take out the mesh cylinder 22 from the cylinder body 20. Then add desiccant into the mesh cylinder 22 through the gap between the mesh cylinder 22 and the sealing cap 21. After the desiccant is added, insert the mesh cylinder 22 into the cylinder body 20 and thread the sealing cap 21 to the cylinder body 20. This makes it easy to replace the desiccant later.

[0047] In some embodiments of this application, the conductive structure 8 includes two symmetrically distributed telescopic rods 81. The telescopic rods 81 are located between two insulating plates 5 and are connected to both insulating plates 5. A spiral cable 82 is sleeved on the telescopic rods 81, and the cable 82 is connected to both conductive plates 7 to prevent the cable 82 from becoming tangled and to ensure that the spiral cable 82 can extend and retract smoothly.

[0048] In this embodiment, the telescopic rod 81 includes rod I, and rod II is slidably connected to rod I. One end of rod I is fixedly connected to one of the insulating plates 5, and one end of rod II is fixedly connected to the other insulating plate 5.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A graphite furnace electrically conductive trolley comprising a trolley body (1), characterized in that: The upper part of the vehicle body (1) is fixed with two symmetrically distributed boxes (2). One end of the box (2) is provided with a box door (3), and the other end of the box (2) is provided with a through hole (4). The interior of the housing (2) is provided with an insulating plate (5) that can seal the through hole (4). The insulating plate (5) is connected to a hydraulic cylinder (6) that can move it. A conductive plate (7) is installed on the insulating plate (5), and a conductive structure (8) is connected between the two conductive plates (7). The lower part of the box (2) is provided with a rotating shaft (9) that is fixedly connected to the box door (3). A gear (11) is fixed on the rotating shaft (9). The gear (11) meshes with a rack (12) that is adapted to it. The rack (12) is fixedly connected to a slide rod (13) that can move along the moving direction of the insulating plate (5). A return spring (15) is connected between the slide rod (13) and the box body (2). When the return spring (15) is in a free state, the box door (3) is located below the box body (2), and the slide rod (13) extends into the interior of the box body (2).

2. The electrically conductive trolley for a graphitization furnace of claim 1, wherein: The lower end of the housing (2) is fixed with a slide groove (17), and the rack (12) cooperates with the slide groove (17) and is slidably connected.

3. The electrically conductive trolley for a graphitization furnace of claim 1, wherein: The number of gears (11) is two, and the two gears (11) are symmetrically distributed about the axis (9).

4. The electrically conductive trolley for a graphitization furnace of claim 1, wherein: The contact end between the box body (2) and the box door (3) is fixed with a suitable rubber ring I (18); The insulating plate (5) is fixed with a suitable rubber ring II (19) at the contact end with the box body (2).

5. The electrically conductive trolley for a graphitization furnace of claim 1, wherein: The upper part of the box (2) is provided with a cylinder (20) communicating with its interior, and the interior of the cylinder (20) is provided with a desiccant.

6. The electrically conductive trolley for a graphitization furnace of claim 5, wherein: The cylinder (20) is a tubular structure that runs vertically through the top and bottom. The lower end of the cylinder (20) passes through the upper end of the box (2) and is sealed to the box (2). The upper end of the cylinder (20) is provided with a removable sealing cover (21). Inside the cylinder (20) is a mesh cylinder (22) located below the sealing cover (21) and having a gap with the sealing cover (21). The mesh cylinder (22) is fixedly connected to the sealing cover (21) by a vertical rod (23).

7. The electrically conductive trolley for a graphitization furnace of claim 1, wherein: The conductive structure (8) includes two symmetrically distributed telescopic rods (81), which are located between two insulating plates (5) and connected to both insulating plates (5) at the same time. A spiral cable (82) is sleeved on the telescopic rod (81), and the cable (82) is connected to both conductive plates (7) at the same time.

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