Transverse pulling mechanism and lithium battery negative electrode material production line

Abstract

The utility model provides a transverse pulling mechanism and a lithium battery cathode material production line. The transverse pulling mechanism comprises a first base and a telescopic part which is installed on the first base and can stretch out and draw back in the length direction X of the first base, a telescopic frame is connected to the power output end of the telescopic part, a hook is hinged to the interior of the telescopic frame, and a baffle is arranged on the side, away from the telescopic part, of the telescopic frame. A first limiting face matched with the baffle is arranged on one side of the hook, a transverse pulling face is arranged on the other side of the hook, the transverse pulling face is connected with the first limiting face through a forward moving face, and the upper end of the transverse pulling face and the upper end of the forward moving face stretch out of the outer side of the telescopic frame. The transverse pulling mechanism is integrated on the carrier loader, a transverse pulling station does not need to be additionally arranged, plant land is saved, the occupied area can be reduced by more than 30%, and the problem of plant waste is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of battery manufacturing, in particular to a horizontal pulling mechanism and a lithium battery negative electrode material production line. Background Art

[0002] Electric vehicles have been gradually put into use. Their batteries, as energy storage for electric vehicles, mainly include positive electrode materials, negative electrode materials, diaphragms, electrolytes, etc. At present, the market demand for negative electrode materials is estimated to be 1.5 million tons per year, and the market scale is expanding rapidly. It is expected that the market demand will reach 3 million tons by 2025. The production of negative electrode materials generally uses a graphitization furnace, which needs to be moved horizontally on the production line to achieve cross-process operation.

[0003] The existing patent announcement number CN216785732U discloses a continuous mobile graphitization system, and the existing patent publication number CN112815722A discloses a mobile graphitization furnace system and its power supply device, both of which use a transition car for the transverse movement device. The transition car is a carrier that can be moved laterally. The graphitization furnace and the longitudinal moving car are transferred to the transverse moving carrier, and then the graphitization furnace, the longitudinal moving car and the transverse moving car are moved from the first track to the second track together. In this transverse movement method, the transverse movement station cannot be used as a production station. Each production line requires a separate transverse movement station on both sides. The transverse movement station occupies more than 30% of the production area, which causes a great deal of waste in the factory. In addition, the longitudinal moving car needs to be moved to the transverse moving car. Therefore, the transverse moving car has a complex structure, which can easily lead to poor equipment stability and high operating costs. Utility Model Content

[0004] The utility model aims to provide a horizontal pulling mechanism and a lithium battery negative electrode material production line, which can reduce the floor space and simplify the equipment structure.

[0005] The technical solution of the utility model is: a horizontal pulling mechanism, comprising a first base and a telescopic member installed on the first base and capable of telescoping along the length direction X of the first base, a telescopic frame is connected to the power output end of the telescopic member, a hook is hinged in the telescopic frame, a side of the telescopic frame away from the telescopic member is a baffle, one side of the hook is provided with a first limiting surface adapted to the baffle, the other side of the hook is provided with a horizontal pulling surface, the horizontal pulling surface and the first limiting surface are connected by a forward displacement surface, and the upper ends of the horizontal pulling surface and the forward displacement surface extend out of the outside of the telescopic frame.

[0006] Preferably, the first limiting surface is an arc surface, and when the first limiting surface abuts against the baffle, the horizontal pulling surface is a vertical plane, and the forward displacement surface is an inclined surface.

[0007] Preferably, the hook is hinged to the telescopic frame via an axis, a horizontal distance L1 is formed from the center of the axis to the first limiting surface, and a horizontal distance L2 is formed from the center of the axis to the transverse pulling surface, and L1>L2.

[0008] Preferably, a first guide plate and a second guide plate are spaced apart in the width direction Y of the first base, and the telescopic frame is slidably disposed between the first guide plate and the second guide plate.

[0009] Preferably, the telescopic frame is rotatably provided with movable wheels on both sides of the Y direction, and the movable wheels can roll on the first base.

[0010] Preferably, the first guide plate comprises a first vertical plate vertically connected to the first base and a first horizontal plate horizontally connected to the top of the first vertical plate, and the first horizontal plate extends outward from the first vertical plate to place the movable wheel on one side;

[0011] The second guide plate includes a second vertical plate vertically connected to the first base and a second horizontal plate horizontally connected to the top of the second vertical plate. The second horizontal plate extends out of the second vertical plate to match the movable wheel on the other side.

[0012] Preferably, the second vertical plate is shorter than the first vertical plate, and a second limiting surface is provided on a side of the second vertical plate away from the telescopic member. When the movable wheel retreats toward the telescopic member, the second limiting surface is used to limit the retreat position of the movable wheel.

[0013] The utility model also provides a lithium battery negative electrode material production line, comprising a foundation, a graphitization furnace and a plurality of carriers moving along the Y direction on the foundation, the plurality of carriers being arranged at intervals in the X direction of the foundation, at least one of the carriers being provided with at least one of the above-mentioned horizontal pulling mechanisms, a pulling plate adapted to the horizontal pulling mechanism being provided at the bottom of the graphitization furnace, and when the horizontal pulling mechanism is extended and retracted in the X direction, the hook is connected with the pulling plate.

[0014] Preferably, a plurality of pulling plates are arranged at intervals along the X direction at the bottom of the graphitization furnace.

[0015] Preferably, the carrier vehicle is further provided with a supporting roller extending in the X direction, at least two supporting rollers are arranged at intervals on the carrier vehicle, and a track plate in contact with the supporting rollers is provided at the bottom of the graphitization furnace.

[0016] Compared with the related art, the beneficial effects of the utility model are:

[0017] 1. Design a horizontal pulling mechanism to pull the graphitization furnace from one carrier to another in a horizontal pulling manner, and the horizontal pulling mechanism is integrated on the carrier. There is no need to set up an additional horizontal pulling station, saving plant land, and can reduce the floor area by more than 30%, avoiding the problem of plant waste;

[0018] Second, a hook is eccentrically hinged on the horizontal pulling mechanism, so that the hook can easily enter the pulling plate of the graphitization furnace in the forward direction, and when the hook retreats, the horizontal pulling surface of the hook abuts against the pulling plate, and the first limiting surface abuts against the baffle, so that the hook and the pulling plate are effectively locked when pulling back, and the graphitization furnace can be smoothly moved horizontally to the next carrier, and the implementation method is simple, stable and reliable;

[0019] 3. The transport vehicle is integrated with a horizontal pulling mechanism, and the overall structure is compact and small, stable and reliable, with low operating costs and low investment costs, which can reduce investment costs by more than 70%. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the structure of the horizontal pulling mechanism provided by the utility model;

[0021] Figure 2 A partial cross-sectional schematic diagram of the horizontal pulling mechanism provided by the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the lithium battery negative electrode material production line provided by the utility model;

[0023] Figure 4 for Figure 3 The structural schematic diagram without the graphitization furnace;

[0024] Figure 5 It is a structural schematic diagram of a graphitization furnace;

[0025] Figure 6 It is a structural schematic diagram of the support roller;

[0026] Figure 7 A schematic diagram of the alignment of two carriers;

[0027] Figure 8 It is a schematic diagram of the horizontal pulling mechanism pulling the first pulling plate of the graphitization furnace to move horizontally;

[0028] Fig. 9 It is a schematic diagram of the horizontal pulling mechanism before contacting with the second pulling plate of the graphitization furnace;

[0029] Fig.10 It is a schematic diagram of the cross-pull mechanism after contacting with the second pull plate of the graphitization furnace;

[0030] Fig.11 The schematic diagram of the horizontal pulling mechanism pulling the second pulling plate of the graphitization furnace to move horizontally;

[0031] Fig.12 Schematic diagram of the graphitization furnace being moved horizontally to the second carrier.

[0032] In the attached drawings: 1. graphitization furnace; 11. pulling plate; 12. track plate; 13. furnace frame; 2. carrier; 21. first carrier; 22. second carrier; 3. foundation; 4. horizontal pulling mechanism; 41. first base; 42. telescopic frame; 43. shaft; 44. hook; 441. first limiting surface; 442. horizontal pulling surface; 443. forward moving surface; 45. first guide plate; 451. first vertical plate; 452. first horizontal plate; 46. second guide plate; 461. second vertical plate; 462. second horizontal plate; 463. second limiting surface; 47. movable wheel; 48. telescopic member; 49. first support; 410. baffle; 5. supporting roller; 51. roller; 52. second support; 53. second base; 6. track. DETAILED DESCRIPTION

[0033] The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments. It should be noted that the embodiments and features in the embodiments of the present invention can be combined with each other without conflict. For the convenience of description, if the words "upper", "lower", "left" and "right" appear in the following text, they only indicate that the upper, lower, left and right directions are consistent with the drawings themselves, and do not limit the structure.

[0034] like Figure 1 , Figure 2 As shown, a horizontal pulling mechanism 4 provided in this embodiment includes a first base 41 , a telescopic frame 42 , a shaft 43 , a hook 44 , a first guide plate 45 , a second guide plate 46 , a movable wheel 47 , a telescopic member 48 and a first support 49 .

[0035] The first base 41 has a length direction X and a width direction Y, and is a rectangular flat plate structure. The telescopic member 48 can be optionally a hydraulic cylinder, whose cylinder barrel is mounted on the first base 41 through a first support 49, and whose telescopic rod is telescopic along the X direction. The telescopic frame 42 is fixedly connected to the telescopic rod of the telescopic member 48. The telescopic frame 42 is hollow inside, and the upper and lower ends are connected. The side wall of the telescopic frame 42 away from the telescopic rod forms a baffle 410.

[0036] One side of the hook 44 is provided with a first limiting surface 441 adapted to the baffle 410, and the other side of the hook 44 is provided with a horizontal pulling surface 442. The horizontal pulling surface 442 and the first limiting surface 441 are connected through a forward moving surface 443, and the upper ends of the horizontal pulling surface 442 and the forward moving surface 443 extend out of the outside of the telescopic frame 42.

[0037] The hook 44 is hinged to the telescopic frame 42 through the shaft 43, and a horizontal distance L1 is formed between the center of the shaft 43 and the first limiting surface 441, and a horizontal distance L2 is formed between the center of the shaft 43 and the transverse pulling surface 442, and L1>L2, so that the shaft 43 is eccentrically arranged on the hook 44. The eccentric hinged structure enables the hook 44 to be kept in a vertical state under the action of the center of gravity (without external force), and at this time, when the first limiting surface 441 contacts the baffle 410, the transverse pulling surface 442 is a vertical plane, and the forward displacement surface 443 is an inclined surface.

[0038] The height of the baffle 410 is smaller than that of the telescopic frame 42 , and an inclined surface is provided on the side wall of the telescopic frame 42 for connecting the baffle 410 , so as to achieve locking contact between the baffle 410 and the first limiting surface 441 .

[0039] The telescopic frame 42 is provided with movable wheels 47 for rotation on both sides of the Y direction, and the telescopic frame 42 is moved by rolling the movable wheels 47 on the first base 41 .

[0040] A first guide plate 45 and a second guide plate 46 are arranged at intervals in the width direction Y of the first base 41, and the telescopic frame 42 is slidably placed between the first guide plate 45 and the second guide plate 46. The first guide plate 45 includes a first vertical plate 451 vertically connected to the first base 41 and a first horizontal plate 452 horizontally connected to the top of the first vertical plate 451, and the first horizontal plate 452 extends out of the outside of the first vertical plate 451 to place the movable wheel 47 on one side. The second guide plate 46 includes a second vertical plate 461 vertically connected to the first base 41 and a second horizontal plate 462 horizontally connected to the top of the second vertical plate 461. The second horizontal plate 462 extends out of the outside of the second vertical plate 461 to adapt to the movable wheel 47 on the other side. That is, the movable wheel 47 on one side rolls in the slide groove enclosed by the first vertical plate 451, the first horizontal plate 452 and the first base 41. The second vertical plate 461 is shorter than the first vertical plate 451. A second limiting surface 463 is provided on the side of the second vertical plate 461 away from the telescopic member 48. When the movable wheel 47 moves back toward the telescopic member 48, the second limiting surface 463 is used to limit the retracted position of the movable wheel 47. That is, when the movable wheel 47 contacts the second limiting surface 463, the telescopic member 48 stops retracting. A position sensor can be installed near the second limiting surface 463, and the telescopic member 48 is stopped by sending a signal through the position sensor.

[0041] like Figure 3As shown, the utility model also provides a lithium battery negative electrode material production line, comprising a base 3, a graphitization furnace 1, and a plurality of carriers 2 moving along the Y direction on the base 3 through a track 6, wherein the plurality of carriers 2 are arranged at intervals in the X direction of the base 3. At least one of the above-mentioned horizontal pulling mechanisms is provided on at least one of the carriers 2, and a pulling plate 11 adapted to the horizontal pulling mechanism is provided at the bottom of the graphitization furnace 1, and when the horizontal pulling mechanism is extended in the X direction, the hook 44 is hooked with the pulling plate 11.

[0042] like Figure 5 As shown, the graphitization furnace 1 includes a furnace frame 13, three track plates 12 arranged along the Y direction at the bottom of the furnace frame 13, and two groups of pull plates 11. Each group of pull plates 11 is arranged in multiple intervals in the X direction, so that the hook 44 can gradually move the graphitization furnace 1 in a step-by-step manner. The track plate 12 is adapted to the support roller 5.

[0043] In this embodiment, in order to facilitate the description of the lateral movement, the carrier 2 is provided with two, namely a first carrier 21 and a second carrier 22, and two lateral pulling mechanisms 4 (such as Figure 4 as shown).

[0044] Three groups of support rollers 5 are arranged at intervals along the Y direction on each of the transport vehicles 2. Figure 6 As shown, the supporting roller 5 includes a second base 53 and a plurality of rollers 51 hinged to the second base 53 through a second support 52. The axis of the roller 51 is parallel to the Y direction. The track plate 12 is in contact with the roller 51. When the graphitization furnace 1 moves laterally, it rolls on the roller 51, making the lateral movement more labor-saving.

[0045] The method for lateral movement of a graphitization furnace using the above-mentioned lithium battery negative electrode material production line comprises the following steps:

[0046] Step S1, such as Figure 7 As shown, the graphitization furnace 1 is displaced on the foundation 3 along the Y direction on the first carrier 21 via the track 6 to perform the corresponding process content. When the graphitization furnace 1 needs to be moved horizontally, the second carrier 22 is moved along the foundation 3 to be flush with the first carrier 21.

[0047] Step S2, such as Figure 8As shown, the horizontal pulling mechanism 4 on the second carrier 22 is started to extend the telescopic frame 42 and the hook 44 in the X direction. The forward moving surface 443 of the hook 44 first contacts the first pull plate 11 (the pull plate 11 at the edge) to rotate the hook 44. The hook 44 continues to extend, and the forward moving surface 443 is separated from the pull plate 11. The hook 44 returns to a vertical state under the action of its own weight. The extension of the hook 44 is stopped, and the horizontal pulling mechanism 4 is started to pull back the telescopic frame 42 and the pull plate 11. At this time, the horizontal pulling surface 442 abuts against the pull plate 11, and the first limiting surface 441 abuts against the baffle 410. When the hook 44 continues to retreat, the graphitization furnace 1 is moved horizontally from the first carrier 21 to the edge of the second carrier 22.

[0048] Step S3, such as Fig. 9 As shown, the horizontal pull mechanism 4 is stopped from retreating, and the horizontal pull mechanism 4 is restarted to advance (extend), so that the hook 44 is first rotated clockwise to the inner side of the second pull plate 11 (such as Fig. 9 As shown), until the horizontal pull surface 442 is located on the inner side of the second pull plate 11, the hook 44 returns to the vertical position (as shown Fig.10 As shown in FIG. 1 ), the horizontal pulling mechanism 4 is stopped from moving forward, and the horizontal pulling mechanism 4 is restarted to move back. At this time, the horizontal pulling surface 442 abuts against the pulling plate 11, and the first limiting surface 441 abuts against the baffle 410. When the hook 44 continues to move back, the graphitization furnace 1 is further moved horizontally on the second carrier 22 for a short distance (as shown in FIG. 1 ). Fig.11 as shown).

[0049] Repeat step S3, the hook 44 contacts the next pull plate 11 and pulls back until the graphitization furnace 1 is completely pulled back to the second carrier 22 (such as Fig.12 As shown), the lateral movement of the graphitization furnace 1 is completed.

[0050] If the number of the transport vehicles 2 exceeds two, the setting principle is the same as above. Between two adjacent transport vehicles 2, one of the transport vehicles 2 is provided with a transverse pulling mechanism 4.

[0051] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A horizontal pulling mechanism, characterized in that: The invention comprises a first base (41) and a telescopic member (48) mounted on the first base (41) and capable of telescoping along a length direction X of the first base (41); a telescopic frame (42) is connected to a power output end of the telescopic member (48); a hook (44) is hingedly connected to the telescopic frame (42); a baffle (410) is provided on one side of the telescopic frame (42) away from the telescopic member (48); a first limiting surface (441) adapted to the baffle (410) is provided on one side of the hook (44); a transverse pulling surface (442) is provided on the other side of the hook (44); the transverse pulling surface (442) and the first limiting surface (441) are connected via a forward displacement surface (443); and the upper ends of the transverse pulling surface (442) and the forward displacement surface (443) extend out of the outside of the telescopic frame (42).

2. The horizontal pulling mechanism according to claim 1, characterized in that: The first limiting surface (441) is an arc surface, and when the first limiting surface (441) is in contact with the baffle (410), the horizontal pulling surface (442) is a vertical plane, and the forward displacement surface (443) is an inclined surface.

3. The horizontal pulling mechanism according to claim 1, characterized in that: The hook (44) is hinged to the telescopic frame (42) via a shaft (43); a horizontal distance L1 is formed from the center of the shaft (43) to the first limiting surface (441); a horizontal distance L2 is formed from the center of the shaft (43) to the transverse pulling surface (442); L1>L2.

4. The horizontal pulling mechanism according to claim 1, characterized in that: A first guide plate (45) and a second guide plate (46) are arranged at intervals in the width direction Y of the first base (41), and the telescopic frame (42) is slidably disposed between the first guide plate (45) and the second guide plate (46).

5. The horizontal pulling mechanism according to claim 4, characterized in that: The telescopic frame (42) is rotatably provided with movable wheels (47) on both sides in the Y direction, and the movable wheels (47) can roll on the first base (41).

6. The horizontal pulling mechanism according to claim 5, characterized in that: The first guide plate (45) comprises a first vertical plate (451) vertically connected to the first base (41) and a first horizontal plate (452) horizontally connected to the top of the first vertical plate (451), and the first horizontal plate (452) extends out of the outside of the first vertical plate (451) to place the movable wheel (47) on one side; The second guide plate (46) comprises a second vertical plate (461) vertically connected to the first base (41) and a second horizontal plate (462) horizontally connected to the top of the second vertical plate (461), and the second horizontal plate (462) extends out of the outer side of the second vertical plate (461) to adapt to the movable wheel (47) on the other side.

7. The horizontal pulling mechanism according to claim 6, characterized in that: The second vertical plate (461) is shorter than the first vertical plate (451), and a second limiting surface (463) is provided on a side of the second vertical plate (461) away from the telescopic member (48); when the movable wheel (47) moves back towards the telescopic member (48), the second limiting surface (463) is used to limit the retracted position of the movable wheel (47).

8. A lithium battery negative electrode material production line, comprising a base (3) and a graphitization furnace (1), characterized in that: It also includes a plurality of carriers (2) that move along the Y direction on the base (3), the plurality of carriers (2) being arranged at intervals in the X direction of the base (3), at least one of the carriers (2) being provided with at least one horizontal pulling mechanism as described in any one of claims 1 to 7, the bottom of the graphitization furnace (1) being provided with a pulling plate (11) that is adapted to the horizontal pulling mechanism, and when the horizontal pulling mechanism is extended and retracted in the X direction, the hook (44) is connected to the pulling plate (11).

9. The lithium battery negative electrode material production line according to claim 8, characterized in that: A plurality of pulling plates (11) are arranged at intervals along the X direction at the bottom of the graphitization furnace (1).

10. The lithium battery negative electrode material production line according to claim 8, characterized in that: The carrier vehicle (2) is also provided with a support roller (5) extending in the X direction, at least two support rollers (5) are arranged at intervals on the carrier vehicle (2), and a track plate (12) in contact with the support rollers (5) is provided at the bottom of the graphitization furnace (1).

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