Safe battery pack conveying device for new energy automobile production line

Abstract

The invention relates to the technical field of conveying devices, in particular to a safe battery pack conveying device for a new energy automobile production line. The walking mechanism comprises a walking assembly, a supporting assembly, a lifting assembly and a detecting assembly, the walking assembly is arranged on the conveying mechanism, the lifting assembly and the detecting assembly are arranged on the walking assembly, the supporting assembly is movably arranged on the walking assembly and connected with the lifting assembly, and the detecting assembly is arranged on the supporting assembly. The supporting assembly is used for bearing a battery pack, and the detection assembly is used for detecting the state of the battery pack; the collecting mechanism is arranged below the conveying mechanism, and the lifting assembly can drive the supporting assembly to ascend and descend to the collecting mechanism so that the battery pack on the supporting assembly can be placed in the collecting mechanism. The method has the effect of reducing potential safety hazards.

Description

Technical Field

[0001] This application relates to the technical field of conveying devices, and in particular to a battery pack safe conveying device for a new energy vehicle production line. Background Art

[0002] Currently, with the transformation of the global energy structure and the promotion of environmental protection policies, the new energy vehicle industry has developed rapidly. As the core component of electric vehicles, the production efficiency and safety of power battery packs have become the key to industry competition. In the battery pack production line, the conveying device undertakes the core task of efficiently and stably transferring the battery packs between different workstations (such as assembly, inspection, storage). However, the current detection of the safety status of battery packs usually needs to be carried out at fixed workstations, resulting in the real-time safety status during the conveying process being in a "monitoring blind area". For example, during the transfer of battery packs, risks such as internal cell short circuits, insulation failure, temperature rise, and spontaneous combustion may be caused by mechanical vibration, abnormal temperature, or external collision, thus bringing huge potential hazards to safe production. However, due to the lack of real-time status perception and emergency response mechanisms, such potential hazards are difficult to detect in a timely manner. Once abnormal battery packs flow into subsequent workstations or storage areas, chain safety accidents such as thermal runaway, combustion, and even explosion may occur, causing significant economic losses and casualties.

[0003] Therefore, there are potential safety hazards in the actual conveying process. Summary of the Invention

[0004] In order to reduce potential safety hazards, this application provides a battery pack safe conveying device for a new energy vehicle production line.

[0005] A battery pack safe conveying device for a new energy vehicle production line provided by this application adopts the following technical solutions: A battery pack safe conveying device for a new energy vehicle production line includes: A conveying mechanism; A traveling mechanism, including a traveling component, a support component, a lifting component, and a detection component. The traveling component is arranged on the conveying mechanism, the lifting component and the detection component are respectively arranged on the traveling component, the support component is movably arranged on the traveling component and is connected to the lifting component. The support component is used to carry the battery pack, and the detection component is used to detect the status of the battery pack; A collection mechanism is arranged below the conveying mechanism. The lifting component can drive the support component to lift to the collection mechanism to place the battery pack on the support component into the collection mechanism.

[0006] By adopting the above technical solution, the cooperation between the conveying mechanism and the walking mechanism realizes the efficient transfer of the battery pack between different workstations. At the same time, the detection component can monitor the state of the battery pack in real time during the transfer process, effectively avoiding potential safety hazards caused by mechanical vibration, abnormal temperature or external collision. Once an abnormality is detected, the lifting component can quickly lower the battery pack on the support component into the collection mechanism, and use the thermal management medium provided by the collection mechanism for emergency treatment, thereby preventing the spread of potential accidents such as thermal runaway, combustion or explosion, ensuring production safety and reducing economic losses, and thus effectively reducing potential safety hazards. In addition, this design also improves the stability and flexibility of the conveying process, providing a reliable guarantee for the efficient operation of the new energy vehicle production line.

[0007] Optionally, the conveying mechanism includes a frame and two sets of conveying units. The two sets of conveying units are symmetrically arranged on the frame and spaced apart from each other. The walking assembly includes a walking seat and a walking guide rail. The walking guide rail is arranged on the frame. The walking seat is slidably arranged on the walking guide rail and contacts the two sets of conveying units respectively. A relief groove is formed on the walking seat. The support assembly is slidably arranged in the relief groove. The lifting assembly and the detection assembly are respectively arranged on the walking seat.

[0008] By adopting the above technical solution, the frame and the two sets of conveying units in the conveying mechanism provide a stable basic structure for the whole device, ensuring the efficient transmission of the battery pack between different workstations. The walking seat is slidably arranged along the walking guide rail, which can flexibly adjust its position and keep in contact with the two sets of conveying units, so as to realize the smooth transition of the battery pack during the conveying process. The support assembly is slidably arranged in the relief groove of the walking seat. Cooperating with the lifting assembly and the detection assembly, it can not only carry the battery pack, but also detect its state in real time, effectively avoiding potential safety hazards during the conveying process. This design enables the battery pack to be always in a controllable state during the transfer process, significantly improving the safety and reliability of the production line.

[0009] Optionally, the collection mechanism includes a sliding drive assembly and a collection component arranged on the sliding drive assembly. The sliding drive assembly is arranged below the frame and arranged along the conveying direction of the conveying unit. The sliding drive assembly is used to drive the collection component to move synchronously with the support component.

[0010] By adopting the above technical solution, the cooperation between the sliding drive assembly and the collection component can ensure that the collection mechanism moves synchronously with the support component in the conveying direction. On the one hand, it is convenient to transfer the battery pack into the collection component at any position, so that the production line does not need to stop during the transfer process, effectively improving production efficiency. On the other hand, it effectively avoids the risk of the battery pack falling due to position deviation during the transfer process, improving the stability and safety of the whole conveying process.

[0011] Optionally, the support assembly includes two groups of support plates, the cross-section of the support plates is L-shaped, the two groups of support plates are respectively slidably arranged in the give way grooves and are symmetrically arranged, the lifting assembly is respectively connected to the two groups of support plates, and the two groups of support plates are used to jointly carry the battery pack; The collection assembly includes a collection box, a telescopic part and a support plate. The collection box is arranged on the sliding drive assembly. A thermal management medium is arranged in the collection box. The telescopic part is arranged in the collection box. The support plate is slidably arranged in the collection box and connected to the telescopic part. When the lifting assembly drives the two groups of support plates to descend to the position of the support plates, the support plate is located between the two groups of support plates.

[0012] By adopting the above technical solution, when the battery pack needs to be transferred to the collection box, the lifting assembly is first used to drive the two groups of support plates to descend synchronously. The two groups of support plates drive the battery pack to descend to a position in contact with the support plate. At this time, the buffering effect of the telescopic part is used to reduce the impact force and protect the battery pack from damage. The sliding drive assembly is then used to adjust the movement speed of the collection box so that the battery pack can detach from the support plate under the action of its own inertia and friction, so as to facilitate the transfer of the battery pack from the support plate to the support plate. And when the battery pack is completely detached from the support plate, the telescopic part is compressed, and the battery pack can gradually enter the collection box, so that the thermal management medium in the collection box can be used to effectively deal with the abnormal heating of the battery pack, thereby further improving safety. The overall design realizes the safe transportation and emergency treatment of the battery pack, reducing safety hazards in the production process.

[0013] Optionally, a limiting boss is provided at one end of the supporting plate, the limiting boss is located between the two groups of supporting plates, and the limiting boss is used to interfere with the battery pack.

[0014] By adopting the above technical solution, a limiting boss is set at one end of the support plate, so that when there is a difference in the moving speed of the collection box and the moving speed of the support plate, the battery pack can be separated from the support plate and fall onto the support plate under the action of the limiting boss, so as to improve the separation efficiency of the battery pack and the support plate.

[0015] Optionally, a buffer pad is provided in the clearance groove, and the buffer pad is used to fill the gap between the support assembly and the inner wall of the clearance groove.

[0016] By adopting the above technical solution, the setting of the buffer pad can effectively reduce the rigid contact between the support component and the groove wall when sliding in the clearance groove, thereby reducing the mechanical wear caused by vibration or impact. At the same time, the buffer pad fills the gap between the support component and the inner wall of the clearance groove, improves the stability of the support component, and prevents it from shaking or shifting during the sliding process, thereby ensuring the stability and safety of the battery pack during the transportation process. This design not only extends the service life of the equipment, but also improves the reliability and operating efficiency of the entire conveying device.

[0017] Optionally, the conveying unit includes a rotating drive member and a plurality of conveying rollers, the plurality of conveying rollers are respectively rotatably connected to the frame and are respectively connected to the rotating drive member, the rotating drive member is used to drive the plurality of conveying rollers to rotate synchronously, and the walking seat is respectively in contact with the plurality of conveying rollers.

[0018] By adopting the above technical solution, the rotating drive member can drive multiple conveying rollers to rotate synchronously, and the walking seat is in contact with multiple conveying rollers, thereby ensuring the stability of the walking assembly during the conveying process, so as to achieve smooth conveyance of the battery pack on the conveying mechanism.

[0019] Optionally, the conveying mechanism includes a first shifting component and a second shifting component, the first shifting component is movably arranged on the frame, the plurality of conveying rollers are divided into two groups, the two groups of conveying rollers are respectively rotatably connected to the first shifting component, the first shifting component is used to switch the positions of the two groups of conveying rollers, the second shifting component is arranged on the frame and connected to the rotating drive member, and the second shifting component is used to control the connection or separation of the rotating drive member and the conveying rollers.

[0020] By adopting the above technical solution, when a group of conveyor rollers needs to be replaced or maintained after working for a long time, the second position change component is first used to control the rotation drive member to separate from the conveyor rollers, the first position change component switches the positions of the two groups of conveyor rollers, and then the second position change component is used to control the rotation drive member to connect with the new conveyor rollers, so that the rotation drive member drives the new conveyor rollers to rotate, so as to meet the conveying needs of the battery pack. At the same time, the staff can replace or maintain the replaced conveyor rollers, thereby effectively reducing the downtime of the production line and further improving the overall operation efficiency and safety of the production line.

[0021] Optionally, the first transposition assembly includes a first driving member and a plurality of transposition disks, the plurality of transposition disks are respectively rotatably connected to the frame, the two conveying rollers are respectively rotatably connected to the same transposition disk, the first driving member is arranged on the frame, the first driving member is respectively connected to the plurality of transposition disks, and the first driving member is used to drive the plurality of transposition disks to rotate synchronously.

[0022] By adopting the above technical solution, the first driving member can drive multiple commutation disks to rotate synchronously, thereby facilitating the rapid switching of the positions of the two groups of conveying rollers, and further effectively reducing the downtime of the production line. At the same time, since the conveying roller and the commutation disk are detachably connected, it is convenient to replace the worn or damaged conveying roller, reducing the maintenance cost.

[0023] Optionally, the second commutation assembly includes a second driving member, a connecting rod, a sleeve rod and a connecting plate. A plurality of the connecting rods are respectively rotatably connected to the frame and are respectively connected to the rotation driving member. The sleeve rod is slidably sleeved on the connecting rod. A plugging groove is formed in the conveying roller. One end of the sleeve rod away from the connecting rod can be inserted into the plugging groove. The connecting plate is slidably arranged on the frame. The sleeve rod is rotatably connected to the connecting plate. The second driving member is arranged on the frame and is connected to the connecting plate. The second driving member can drive the sleeve rod to insert into or disengage from the plugging groove through the connecting plate.

[0024] By adopting the above technical solution, when the second driving member drives the connecting plate to move towards the conveying roller, the sleeve rod slides accordingly and accurately inserts into the plugging groove on the conveying roller. At this time, when the rotation driving member drives the connecting rod to rotate, the connecting rod can drive the conveying roller to rotate through the sleeve rod, so as to facilitate the use of the conveying roller to convey the walking seat. And when the second driving member works in the reverse direction, the sleeve rod can disengage from the plugging groove on the conveying roller to realize the separation of the sleeve rod and the conveying roller, thereby facilitating the switching of the conveying roller. This design can simplify the mechanical connection steps, effectively reduce the equipment maintenance time and cost, and further improve the overall efficiency of the new energy vehicle production line.

[0025] In summary, the present application includes at least one of the following beneficial technical effects: Through the mutual cooperation of the walking assembly, the supporting assembly, the lifting assembly, the detection assembly and the collection mechanism, the state of the battery pack can be sensed in real time during the conveying process, potential safety hazards can be discovered in time, and after a safety hazard occurs, the battery pack can be placed in the collection mechanism to utilize the thermal management medium provided by the collection mechanism for emergency treatment, thereby effectively reducing the safety hazards. Through the mutual cooperation of the support plate, the collection box, the telescopic member and the supporting plate, the battery pack can be quickly transferred to the supporting plate and gradually enter the collection box, thereby realizing the safe transfer and emergency treatment of the battery pack and reducing the safety hazards in the production process; Through the mutual cooperation of the first commutation assembly and the second commutation assembly, the positions of the two groups of conveying rollers can be switched, so that while meeting the conveying requirements of the battery pack, it is convenient for the staff to replace or maintain the replaced conveying roller, and further effectively reduces the downtime of the production line, and further improves the overall operation efficiency and safety of the production line. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of a battery pack safety conveying device for a new energy vehicle production line in Embodiment 1 of the present application.

[0027] Figure 2 It is a side view of a battery pack safety conveying device for a new energy vehicle production line in Embodiment 1 of the present application.

[0028] Figure 3 It is along Figure 2 A cross-sectional view of the traveling mechanism along line A-A in

[0029] Figure 4 It is a front view of a battery pack safety conveying device for a new energy vehicle production line in Embodiment 1 of the present application.

[0030] Figure 5 It is along Figure 4 A partial structural cross-sectional view of the collection component along line B-B in

[0031] Figure 6 It is a schematic diagram of the overall structure of a battery pack safety conveying device for a new energy vehicle production line in Embodiment 2 of the present application.

[0032] Figure 7 It is a schematic diagram of the structure of the conveying unit in Embodiment 2 of the present application.

[0033] Figure 8 It is a schematic diagram of the structure of the conveying unit from another perspective in Embodiment 2 of the present application.

[0034] Explanation of reference numerals: 1. Conveying mechanism; 11. Frame; 12. Conveying unit; 121. Rotary driving member; 122. Conveying roller; 1221. Insertion slot; 13. First transposition component; 131. First driving member; 132. Transposition disc; 14. Second transposition component; 141. Second driving member; 142. Connecting rod; 143. Sleeve rod; 144. Connecting plate; 2. Traveling mechanism; 21. Traveling component; 211. Traveling seat; 2111. Relief groove; 2112. Buffer pad; 212. Traveling guide rail; 22. Support component; 221. Support plate; 23. Lifting component; 24. Detection component; 3. Collection mechanism; 31. Sliding driving component; 32. Collection component; 321. Collection box; 322. Telescopic member; 323. Supporting plate; 3231. Limit boss. Detailed implementation manners

[0035] The following further elaborates on the present application in conjunction with the attached Figure 1-8 drawings.

[0036] Embodiment 1 of the present application discloses a battery pack safety conveying device for a new energy vehicle production line.

[0037] It should be noted that in the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0038] Currently, during the transportation of battery packs, due to the lack of real-time status monitoring and emergency response mechanisms, potential safety hazards may be difficult to detect and handle in a timely manner. For this reason, this application mainly adopts a battery pack safety transportation device for new energy vehicle production lines. The status of the battery pack is detected through the traveling mechanism, and the emergency transfer of abnormal battery packs is realized by using the collection mechanism, thereby effectively improving the safety of the transportation process.

[0039] Embodiment 1 Referring to Figure 1 , a battery pack safety transportation device for new energy vehicle production lines includes a transportation mechanism 1, a traveling mechanism 2, and a collection mechanism 3. Among them, the traveling mechanism 2 is arranged on the transportation mechanism 1 and cooperates with the transportation mechanism 1 to complete the transportation of the battery pack. The collection mechanism 3 is arranged below the transportation mechanism 1 and is used to collect abnormal battery packs. This structural design realizes real-time status monitoring during the transportation of the battery pack and can quickly isolate the battery pack in case of abnormalities, ensuring production safety.

[0040] The transportation mechanism 1 includes a frame 11 and two sets of transportation units 12. Among them, the frame 11 is made of high-strength steel material and is in an overall rectangular frame structure. The surface of the frame 11 has been subjected to anti-corrosion treatment, and the two sets of transportation units 12 are symmetrically arranged on the frame 11 and are spaced apart from each other. In other embodiments, the surface of the frame 11 can adopt an epoxy-polyurethane composite coating specifically for the scenario of electrolyte leakage of new energy vehicle battery packs.

[0041] The transportation unit 12 includes a rotary drive member 121 and a plurality of transportation rollers 122. Among them, the transportation rollers 122 are made of aluminum alloy material and are rotatably connected to the frame 11 through precision ball bearings. And the outer surface of the transportation rollers 122 is plated with a wear-resistant coating to meet the pressure-bearing requirements of 800 - 1200 kg / m² for new energy vehicle battery packs.

[0042] The rotary driving member 121 is installed on the frame 11. In this embodiment, the rotary driving member 121 is selected as the structure of a servo motor cooperating with a synchronous belt, and the synchronous belt is respectively connected to a plurality of conveying rollers 122, so as to facilitate driving the plurality of conveying rollers 122 to rotate synchronously by using the rotary driving member 121, and the conveying speed can be accurately adjusted by adjusting the motor speed.

[0043] Referring to Figure 1-3 , the traveling mechanism 2 includes a traveling component 21, a support component 22, a lifting component 23 and a detection component 24. Among them, the traveling component 21 is respectively in contact with a plurality of conveying rollers 122, so as to facilitate driving the traveling component 21 to move by using the conveying rollers 122.

[0044] Referring to Figure 1 , the traveling component 21 includes a traveling seat 211 and a traveling guide rail 212. Among them, the traveling guide rail 212 is fixedly installed on the top of the frame 11, and there are two rows of traveling guide rails 212. The two rows of traveling guide rails 212 are parallel to each other and arranged at intervals, and the distance between the two rows of traveling guide rails 212 can be designed according to the size specifications of mainstream new energy vehicle battery packs. The traveling seat 211 is slidably arranged on the traveling guide rail 212 and is respectively in contact with the conveying rollers 122 on both sides. A polytetrafluoroethylene gasket is provided at the bottom of the traveling seat 211 to reduce the frictional resistance.

[0045] Referring to Figure 1 and Figure 3 , a relief groove 2111 is formed on the traveling seat 211, and the support component 22 includes two groups of support plates 221. Among them, the cross section of the support plate 221 is L-shaped, and the material can be selected as a glass fiber composite material, which has the characteristics of high strength and high temperature resistance. The two groups of support plates 221 are symmetrically distributed and slidably arranged in the relief groove 2111, and the two groups of support plates 221 can jointly carry the battery pack.

[0046] A buffer pad 2112 is arranged in the relief groove 2111. In this embodiment, the buffer pad 2112 is made of silica gel material and is used to fill the gap between the support component 22 and the inner wall of the relief groove 2111 to reduce vibration transmission.

[0047] Referring to Figure 3 , the lifting component 23 is installed on the traveling seat 211, and there are two groups of lifting components 23. The two groups of lifting components 23 are connected to the two groups of support plates 221 in one-to-one correspondence, and the two groups of lifting components 23 are used to drive the two groups of support plates 221 to lift synchronously. In this embodiment, the lifting component 23 is arranged as an electric push rod, so as to facilitate the lifting component 23 to drive the support plate 221 to lift.

[0048] In other embodiments, only one set of lifting components 23 may be provided, and the lifting components 23 may also adopt a lead screw drive structure. The lead screw is installed on the traveling seat 211, and the nut is fixedly connected to the support plate 221. By driving the lead screw to rotate with a stepper motor, the support plate 221 is driven to move in the vertical direction.

[0049] Referring to Figure 3 , the detection component 24 is installed on the traveling seat 211. In this embodiment, the detection component 24 includes a temperature sensor, a pressure sensor, and a gas detection module, and the temperature sensor, the pressure sensor, and the gas detection module are respectively installed on the traveling seat 211 to facilitate detecting the temperature, pressure, and released gas components on the surface of the battery pack to determine whether there is an abnormality in the battery pack. Among them, the gas detection module may adopt a laser methane detection unit to identify the mixed gas of methane and hydrogen released in the initial stage of thermal runaway of the power battery.

[0050] It should be noted that the specific models of the sensors and the detection module can be designed according to actual needs and will not be elaborated here.

[0051] Referring to Figure 1 , the collection mechanism 3 includes a sliding drive component 31 and a collection component 32. Among them, the sliding drive component 31 is installed at the bottom of the frame 11 and is arranged along the conveying direction of the conveying unit 12. In this embodiment, the sliding drive component 31 may adopt a conveyor belt. In other embodiments, the sliding drive component 31 may also be arranged with a lead screw drive structure.

[0052] Referring to Figure 4 and Figure 5 , the collection component 32 includes a collection box 321, a telescopic member 322, and a supporting plate 323. Among them, the collection box 321 is installed on the sliding drive component 31, and the collection box 321 is made of high-temperature resistant stainless steel material and is filled with a heat management medium inside, so as to facilitate quickly absorbing heat and preventing the spread of thermal runaway.

[0053] It should be noted that the heat management medium refers to various media such as water, coolant, or flame retardant used to control heat transfer, absorption, and dissipation. As for which specific medium to adopt, those skilled in the art can design according to actual needs and will not be elaborated here.

[0054] Referring to Figure 5 , the telescopic member 322 is installed inside the collection box 321, the supporting plate 323 is slidably arranged inside the collection box 321 and is fixedly connected to the telescopic member 322, and a limiting boss 3231 is fixedly connected to one end of the supporting plate 323. In this embodiment, the telescopic member 322 is a spring, so as to facilitate using the telescopic member 322 to push the supporting plate 323 to move outside the collection box 321. In other embodiments, the spring can also be replaced with a cylinder.

[0055] Referring toFigure 3 and Figure 5 When the lifting assembly 23 drives the support plate 221 to descend to the position of the supporting plate 323, both the supporting plate 323 and the limiting boss 3231 are located between the two groups of support plates 221, so that the battery pack can be stably placed on the supporting plate 323, facilitating the smooth reception of the battery pack by the supporting plate 323.

[0056] The implementation principle of a battery pack safety conveying device for a new energy vehicle production line in an embodiment of the present application is as follows: When the detection assembly 24 detects an abnormality in the battery pack on the support plate 221, the sliding drive assembly 31 operates. First, it drives the collection box 321 close to the walking seat 211, and then adjusts the moving speed of the collection box 321 so that the collection box 321 moves synchronously with the support plate 221. At this time, the lifting assembly 23 operates to drive the support plate 221 to descend to the position of the supporting plate 323, so that the battery pack on the support plate 221 contacts the supporting plate 323.

[0057] Then, the moving speed of the collection box 321 is adjusted so that the support plate 221 gradually moves away from the supporting plate 323. During this process, the battery pack gradually separates from the support plate 221 under the action of its own inertia and the limiting boss 3231, thus facilitating the transfer of the battery pack from the support plate 221 to the supporting plate 323. At this time, the telescopic member 322 is compressed under the gravity of the battery pack and the supporting plate 323, so that the supporting plate 323 drives the battery pack into the collection box 321, facilitating the effective response to the abnormal temperature rise of the battery pack by the heat management medium in the collection box 321, and thus effectively improving safety.

[0058] It should be noted that specifically how to control the coordinated operation of the detection assembly 24, the sliding drive assembly 31 and the lifting assembly 23 belongs to conventional technical means for those skilled in the art. Therefore, it will not be elaborated in detail in the embodiments of the present application.

[0059] Embodiment 2 Referring to Figure 1 and Figure 6 This embodiment is different from Embodiment 1 in that the conveying mechanism 1 further includes a first transposition assembly 13 and a second transposition assembly 14.

[0060] Referring to Figure 6 and Figure 7 The first transposition assembly 13 includes a first driving member 131 and a plurality of transposition discs 132. Among them, the plurality of transposition discs 132 are respectively rotatably connected to the frame 11, and the first driving member 131 is installed on the frame 11 and is respectively connected to the plurality of transposition discs 132. In this embodiment, the first driving member 131 is selected as a structure of a servo motor cooperating with a synchronous belt, and the synchronous belt is respectively connected to the plurality of transposition discs 132, so as to facilitate driving the plurality of transposition discs 132 to rotate synchronously by the first driving member 131.

[0061] The two conveying rollers 122 rotate respectively and are detachably connected to the same position-changing disc 132, and the conveying rollers 122 in the same row on different position-changing discs 132 are arranged flush to facilitate meeting the conveying requirements of the battery pack.

[0062] In this embodiment, the conveying roller 122 and the position-changing disc 132 are detachably connected by means of a bearing cooperating with a pin shaft. In other embodiments, the conveying roller 122 and the position-changing disc 132 can also be connected by a structure of a flange plate cooperating with a bearing. As for the specific connection structure, it belongs to conventional technical means for those skilled in the art, so it will not be elaborated too much in the embodiments of this application.

[0063] Refer to Figure 7 and Figure 8 , the second position-changing assembly 14 includes a second driving member 141, a connecting rod 142, a sleeve rod 143 and a connecting plate 144. Among them, the numbers of the connecting rod 142 and the sleeve rod 143 are equal to and correspond to the number of the position-changing discs 132 one by one. A plurality of connecting rods 142 are respectively rotatably connected to the frame 11 and are respectively connected to the rotary driving member 121, so that the rotary driving member 121 can drive the plurality of connecting rods 142 to rotate synchronously.

[0064] The sleeve rod 143 is slidably sleeved on the connecting rod 142. A plugging groove 1221 is formed on the conveying roller 122, and one end of the sleeve rod 143 away from the connecting rod 142 can be inserted into the plugging groove 1221. The connecting plate 144 is slidably arranged on the frame 11, and a plurality of sleeve rods 143 are respectively rotatably connected to the connecting plate 144, and the sleeve rod 143 and the connecting plate 144 cannot relatively slide.

[0065] It should be noted that the cross-section of the plugging groove 1221 and the cross-section of the connection part between the sleeve rod 143 and the connecting rod 142 are both non-circular, so as to facilitate the connecting rod 142 to drive the conveying roller 122 to rotate through the sleeve rod 143. And the depth of the plugging groove 1221 and the connection length between the sleeve rod 143 and the connecting rod 142 can be designed according to actual needs to ensure the reliability of torque transmission during the conveying of the new energy vehicle battery pack.

[0066] Refer to Figure 6 and Figure 8 , the second driving member 141 is installed on the frame 11 and is fixedly connected to the connecting plate 144. In this embodiment, the second driving member 141 is a cylinder, so as to facilitate using the second driving member 141 to drive the connecting plate 144 to move, so that the connecting plate 144 can drive the sleeve rod 143 to insert into or disengage from the plugging groove 1221. In other embodiments, the second driving member 141 can also be designed as an electric push rod.

[0067] The implementation principle of Embodiment 2 is as follows: When the conveying roller 122 needs to be replaced or maintained after long-term operation, first start the second driving member 141. The second driving member 141 drives the sleeve rod 143 to disengage from the insertion slot 1221 through the connecting plate 144. Then start the first driving member 131. The first driving member 131 drives the position-changing disc 132 to rotate. The position-changing disc 132 drives the two conveying rollers 122 to switch positions, so that the new conveying roller 122 moves to the position in contact with the traveling seat 211, and the old conveying roller 122 moves downward, thus facilitating the replacement or maintenance of the old conveying roller 122.

[0068] Next, the second driving member 141 works in the reverse direction to drive the sleeve rod 143 to be inserted into the insertion slot 1221 on the new conveying roller 122 through the connecting plate 144, so as to facilitate the rotation driving member 121 to drive the conveying roller 122 to rotate to meet the conveying requirements of the battery pack.

[0069] The above are all the preferred embodiments of the present application. The protection scope of the present application is not limited by this. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A battery pack safety conveying device for a new energy vehicle production line, characterized in that, include: Conveying mechanism (1); A walking mechanism (2), comprising a walking component (21), a supporting component (22), a lifting component (23) and a detecting component (24), wherein the walking component (21) is arranged on the conveying mechanism (1), the lifting component (23) and the detecting component (24) are respectively arranged on the walking component (21), the supporting component (22) is movably arranged on the walking component (21) and connected to the lifting component (23), the supporting component (22) is used to carry a battery pack, and the detecting component (24) is used to detect the state of the battery pack; The collecting mechanism (3) is arranged below the conveying mechanism (1), and the lifting component (23) can drive the supporting component (22) to be lifted to the collecting mechanism (3) so as to place the battery pack on the supporting component (22) into the collecting mechanism (3).

2. The battery pack safety conveying device for a new energy vehicle production line according to claim 1, wherein: The conveying mechanism (1) comprises a frame (11) and two groups of conveying units (12), the two groups of conveying units (12) are symmetrically arranged on the frame (11) and spaced from each other, the walking assembly (21) comprises a walking seat (211) and a walking guide rail (212), the walking guide rail (212) is arranged on the frame (11), the walking seat (211) is slidably arranged on the walking guide rail (212) and is in contact with the two groups of conveying units (12), the walking seat (211) is provided with a clearance groove (2111), the supporting assembly (22) is slidably arranged in the clearance groove (2111), and the lifting assembly (23) and the detection assembly (24) are respectively arranged on the walking seat (211).

3. The battery pack safety conveying device for a new energy vehicle production line according to claim 2, wherein: The collecting mechanism (3) comprises a sliding drive component (31) and a collecting component (32) arranged on the sliding drive component (31); the sliding drive component (31) is arranged below the frame (11) and along the conveying direction of the conveying unit (12); the sliding drive component (31) is used to drive the collecting component (32) to move synchronously with the supporting component (22).

4. The battery pack safety conveying device for a new energy vehicle production line according to claim 3, wherein: The support assembly (22) comprises two groups of support plates (221), the cross-section of the support plates (221) is L-shaped, the two groups of support plates (221) are respectively slidably arranged in the clearance grooves (2111) and are symmetrically arranged, the lifting assembly (23) is respectively connected to the two groups of support plates (221), and the two groups of support plates (221) are used to jointly carry the battery pack; The collection assembly (32) comprises a collection box (321), a telescopic member (322) and a support plate (323); the collection box (321) is arranged on the sliding drive assembly (31); a heat management medium is arranged in the collection box (321); the telescopic member (322) is arranged in the collection box (321); the support plate (323) is slidably arranged in the collection box (321) and connected to the telescopic member (322); when the lifting assembly (23) drives the two groups of support plates (221) to descend to the position of the support plate (323), the support plate (323) is located between the two groups of support plates (221).

5. The battery pack safety conveying device for a new energy vehicle production line according to claim 4, characterized in that: A limiting boss (3231) is provided at one end of the supporting plate (323), the limiting boss (3231) being located between two groups of the supporting plates (221), and the limiting boss (3231) being used to contact the battery pack.

6. The battery pack safety conveying device for a new energy vehicle production line according to claim 2, characterized in that: A buffer pad (2112) is provided in the clearance groove (2111), and the buffer pad (2112) is used to fill the gap between the support assembly (22) and the inner wall of the clearance groove (2111).

7. The battery pack safety conveying device for a new energy vehicle production line according to claim 2, characterized in that: The conveying unit (12) comprises a rotating drive member (121) and a plurality of conveying rollers (122); the plurality of conveying rollers (122) are respectively rotatably connected to the frame (11) and are respectively connected to the rotating drive member (121); the rotating drive member (121) is used to drive the plurality of conveying rollers (122) to rotate synchronously; and the traveling seat (211) is respectively in contact with the plurality of conveying rollers (122).

8. The battery pack safety conveying device for a new energy vehicle production line according to claim 7, wherein: The conveying mechanism (1) comprises a first transposition component (13) and a second transposition component (14); the first transposition component (13) is movably arranged on the frame (11); the plurality of conveying rollers (122) are divided into two groups; the two groups of conveying rollers (122) are rotatably connected to the first transposition component (13) respectively; the first transposition component (13) is used to switch the positions of the two groups of conveying rollers (122); the second transposition component (14) is arranged on the frame (11) and connected to the rotating drive member (121); the second transposition component (14) is used to control the connection or separation of the rotating drive member (121) and the conveying rollers (122).

9. The battery pack safety conveying device for a new energy vehicle production line according to claim 8, wherein: The first transposition assembly (13) comprises a first driving member (131) and a plurality of transposition disks (132); the plurality of transposition disks (132) are respectively rotatably connected to the frame (11); the two conveying rollers (122) are respectively rotatably and detachably connected to the same transposition disk (132); the first driving member (131) is arranged on the frame (11); the first driving member (131) is respectively connected to the plurality of transposition disks (132); and the first driving member (131) is used to drive the plurality of transposition disks (132) to rotate synchronously.

10. The battery pack safety conveying device for a new energy vehicle production line according to claim 8, wherein: The second commutation component (14) includes a second driving member (141), a connecting rod (142), a sleeve rod (143) and a connecting plate (144). A plurality of the connecting rods (142) are respectively rotatably connected to the frame (11) and are respectively connected to the rotary driving member (121). The sleeve rod (143) is slidably sleeved on the connecting rod (142). A plugging groove (1221) is formed in the conveying roller (122). One end of the sleeve rod (143) away from the connecting rod (142) can be inserted into the plugging groove (1221). The connecting plate (144) is slidably arranged on the frame (11). The sleeve rod (143) is rotatably connected to the connecting plate (144). The second driving member (141) is arranged on the frame (11) and is connected to the connecting plate (144). The second driving member (141) can drive the sleeve rod (143) to insert into or disengage from the plugging groove (1221) through the connecting plate (144).

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