Vehicle battery pack hoisting and assembling structure

Abstract

A vehicle battery pack lifting and assembling structure is used for conveying a battery pack and assembling the battery pack and a vehicle frame, the vehicle battery pack lifting and assembling structure comprises a lifting appliance conveying assembly, a lifting appliance assembly, an assembling and lifting assembly and a position fine adjustment assembly, the lifting appliance conveying assembly comprises a lifting arm, and the lifting appliance assembly comprises a box body, a connecting assembly and a lifting appliance anti-disengaging mechanism; the box body is connected to the lifting arm in a sliding mode, the lifting appliance anti-falling mechanism comprises a battery pack support and at least four locking units, the combined lifting assembly comprises a bottom plate, a storage plate and a floating disc, a primary lifting mechanism is arranged on the bottom plate, a secondary lifting mechanism is arranged on the storage plate, the position fine adjustment assembly comprises a bull eye wheel, and the bull eye wheel comprises a ball. The highest points of the balls form a low-friction bearing surface, and the battery pack is arranged on the low-friction bearing surface. According to the vehicle battery pack hoisting and assembling structure, the technical problems that in the prior art, potential safety hazards exist in hoisting of a large-weight battery pack, assembling alignment is difficult, efficiency is low, and the automation degree is low are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile manufacturing and assembling, and particularly relates to a hoisting and assembling structure for a vehicle battery pack. BACKGROUND

[0002] The battery pack is a core power component of an electric vehicle, and the assembling of the battery pack with a vehicle frame is a key process in the assembly line. For an electric light truck, the battery pack usually has the characteristics of large size and heavy weight (up to 700 kg or more), and needs to be installed in a narrow space inside the vehicle frame, which brings great challenges to the assembling operation. The traditional hoisting and assembling method has the following problems: firstly, the general lifting appliance (such as a lifting hook or a lifting rope) is difficult to be quickly and reliably connected with the specific process hole on the battery pack support, there is a risk of unhooking, and the stability during hoisting is poor, which easily causes the parts to collide; secondly, during the assembling stage, the operator has difficulty in observing the alignment condition due to the "blind assembling" state of the battery pack after entering the vehicle frame, and the one-time lifting or simple positioning device cannot finely adjust the position of the battery pack in the horizontal direction after lifting, which leads to the difficulty in accurately aligning the battery pack mounting hole with the screw hole of the vehicle frame, which not only greatly reduces the assembling efficiency, but also may damage the screw thread in the forced alignment process, or cause the connection reliability to decrease due to the installation stress, thereby affecting the safety of the vehicle.

[0003] In the prior art, although various lifting machines and lifting appliances exist, they are mostly general devices, and lack a special and integrated solution for the fast hoisting and accurate assembling of a large-weight battery pack in a limited space. SUMMARY

[0004] In view of the deficiencies in the prior art, the present application aims to provide a hoisting and assembling structure for a vehicle battery pack, which aims to solve the technical problems of safety hazards, difficult alignment, low efficiency and low automation degree in the hoisting of a large-weight battery pack in the prior art.

[0005] In order to achieve the above-mentioned purpose, the present application is realized by the following technical scheme: The utility model provides a kind of hoist and assemble structure for battery pack, for transporting battery pack and with frame, the hoist and assemble structure for battery pack includes hoist transport component, hoist component, assemble lifting component and position fine adjustment component, the hoist transport component includes boom, the hoist component includes box, connecting component and hoist anti-unhooking mechanism, the box is slidably connected on the boom, the hoist anti-unhooking mechanism includes battery pack support and at least four locking units, the locking unit includes fixed plate, push rod, tension spring and locking block, the box is connected the fixed plate by the connecting component, the fixed plate is provided with positioning column towards the battery pack support, the positioning column is sleeved with positioning column protective sleeve, the positioning column protective sleeve is provided with positioning groove, the locking block is slidably connected with the positioning groove, one end of the push rod passes through the fixed plate and is connected with the locking block, the locking block is provided with tension spring between the fixed plate, the tension spring is sleeved on the push rod, the battery pack support is provided with through locking hole, the battery pack is provided with mounting hole, the positioning column passes through the locking hole and the mounting hole, the locking block passes through the locking hole, the assemble lifting component includes bottom plate, storage plate and floating disc, the bottom plate is provided with primary lifting mechanism, the primary lifting mechanism top is connected with the storage plate, the storage plate is provided with secondary lifting mechanism towards the bottom plate, the secondary lifting mechanism top is connected with the floating disc, the primary lifting mechanism is used to adjust and maintain the height of the storage plate, the secondary lifting mechanism is used to adjust and maintain the height of the floating disc, the position fine adjustment component includes several cow eye wheels, the cow eye wheel includes ball and mounting base, the mounting base is arranged on the floating disc towards the storage plate, the ball is arranged in the mounting base, the highest point of several ball forms the low friction bearing surface of the battery pack.

[0006] Further, the battery pack support includes two support rods and two connecting rods, the opposite ends of the two support rods are connected to the two connecting rods, the opposite sides of the two support rods and the opposite sides of the two connecting rods are provided with a plurality of positioning blocks, and the opposite sides of the two support rods are respectively provided with at least two through locking holes.

[0007] Further, the side of the floating disc away from the storage plate is provided with a plurality of spherical pads adapted to the cow eye wheels, and the spherical pads are arranged on the mounting base.

[0008] Further, the side of the fixed plate away from the battery pack support is provided with a push rod protective sleeve, the push rod protective sleeve is sleeved on the push rod, one end of the push rod away from the fixed plate is provided with a handle, and the length of the handle is greater than the diameter of the push rod protective sleeve.

[0009] Further, the lifting tool conveying assembly further comprises a fixing column, a base, and a fixing block, the lifting arm comprises a crossbar and a sliding plate, the base is connected to the fixing column at the top, one side of the fixing column is connected to the crossbar, the crossbar is connected to the sliding plate at the bottom, and two adjacent surfaces of the fixing block are connected to the fixing column and the sliding plate respectively.

[0010] Further, a sliding groove and a conveying motor are arranged on the surface of the sliding plate away from the fixing block, electric pulleys matched with the sliding groove are arranged in the box, a rotating rod is further arranged in the box, and opposite ends of the rotating rod are rotationally connected to the inner wall of the box, and the output ends of the conveying motor are connected to the electric pulleys and the rotating rod respectively, so that the conveying motor is used for controlling the electric pulleys to make horizontal reciprocating motion along the sliding groove and the rotating rod to rotate clockwise or counterclockwise.

[0011] Further, the connecting assembly comprises a main lifting rope, a lifting ring, a sub-lifting rope, and a connecting ring, one end of the main lifting rope is connected to the rotating rod, the other end of the main lifting rope passes through the box and is connected to the lifting ring, one end of the sub-lifting rope is connected to the lifting ring, the other end of the sub-lifting rope is connected to the connecting ring, and one end of the connecting ring away from the sub-lifting rope is rotationally connected to the fixing plate.

[0012] Further, the primary lifting mechanism comprises two lifting units, the secondary lifting mechanism comprises one lifting unit, and the lifting unit comprises a set of oppositely arranged inner arms, a set of oppositely arranged outer arms, a connecting column, and a driving motor, opposite ends of the connecting column are rotationally connected to one of the inner arms and one of the outer arms and another of the inner arms and another of the outer arms respectively, the inner arm comprises an inner upper arm and an inner lower arm, the outer arm comprises an outer upper arm and an outer lower arm, and opposite sides of the inner lower arm are both provided with a hydraulic oil cylinder, one end of the hydraulic oil cylinder away from the inner lower arm is connected to the outer upper arm, and the output end of the driving motor is connected to two hydraulic oil cylinders respectively, the bottom plate, the placing plate, and the floating disc are all provided with mounting plates matched with the inner upper arm, the inner lower arm, the outer upper arm, and the outer lower arm, and the inner upper arm, the inner lower arm, the outer upper arm, and the outer lower arm are rotationally connected to the mounting plates respectively.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: The anti-detachment mechanism in the lifting device assembly uses a positioning column for initial positioning and a spring-driven locking block for automatic locking, solving the problems of hook detachment risk and unstable connection inherent in general lifting devices. This achieves rapid and reliable connection and separation between the battery pack and the lifting device, improving the safety and operational efficiency of the lifting process. Furthermore, the bullseye wheel on the floating plate in the position fine-tuning assembly provides a low-friction bearing surface for the battery pack. This allows the operator to make precise horizontal adjustments to the relatively heavy battery pack with minimal force after a single lift, avoiding… The design addresses the issue of mismatched mounting holes between the battery pack and the vehicle frame during secondary lifting and assembly, improving assembly accuracy. By separating the primary and secondary lifting mechanisms within the lifting assembly, a simplified workflow of primary positioning, secondary fine-tuning, and final pressing is achieved, reducing assembly difficulty and avoiding the drawbacks of one-time lifting that cannot be adjusted. This prevents thread damage or installation stress caused by forced alignment, ensuring assembly quality. The independent existence and combined action of the lifting transport assembly, lifting assembly, lifting assembly, and position fine-tuning assembly enable the entire assembly structure to accommodate various battery pack models, significantly improving the automation level of the production line. Attached Figure Description

[0014] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the lifting and assembly structure of a vehicle battery pack according to an embodiment of the present invention; Figure 2 for Figure 1 Enlarged view of point A in the middle; Figure 3 for Figure 2 Enlarged view of point B in the middle; Figure 4 for Figure 3 Enlarged view of point C in the middle; Figure 5 This is a schematic diagram of the lifting unit in the primary lifting mechanism and the secondary lifting mechanism of the vehicle battery pack hoisting and assembly structure according to an embodiment of the present invention. Figure 6 This is a cross-sectional schematic diagram of the locking unit in the non-locking state of the vehicle battery pack hoisting and assembly structure according to an embodiment of the present invention; Figure 7 This is a cross-sectional schematic diagram of the locking unit in the locked state in the vehicle battery pack hoisting and assembly structure of this invention embodiment; Figure 8 This is a schematic diagram of the battery pack bracket and battery pack structure in the vehicle battery pack hoisting and assembly structure of this invention. Figure 9 Structure diagram of the box body and the connecting assembly in the vehicle battery pack hoisting and assembling structure of the embodiment of the present application; Figure 10 Sectional view diagram of the locking unit combined with the battery pack support and the battery pack in the vehicle battery pack hoisting and assembling structure of the embodiment of the present application.

[0015] Main element symbol explanation: 1, hoist arm; 10, fixed column; 11, base; 12, fixed block; 13, transportation motor; 100, crossbar; 101, sliding plate; 102, sliding groove; 2, box body; 20, electric pulley; 21, rotating rod; 22, main hoisting rope; 23, lifting ring; 24, sub hoisting rope; 25, connecting ring; 26, hoist anti-falling mechanism; 260, battery pack support; 2601, support rod; 2602, connecting rod; 2603, positioning block; 2604, locking hole; 261, locking unit; 2611, fixed plate; 2612, push rod; 2613, tension spring; 2614, locking block; 2615, push rod protective sleeve; 2616, positioning column; 2617, positioning column protective sleeve; 2618, positioning groove; 2619, handle; 30, bottom plate; 31, storage plate; 32, floating disc; 33, primary lifting mechanism; 34, secondary lifting mechanism; 35, lifting unit; 3501, inner upper arm; 3502, inner lower arm; 3511, outer upper arm; 3512, outer lower arm; 352, hydraulic oil cylinder; 353, connecting column; 354, driving motor; 355, mounting plate; 36, bullseye wheel; 360, ball; 361, mounting base; 37, spherical surface pad; 4, battery pack; 40, mounting hole.

[0016] The following specific embodiments will further illustrate the present application in conjunction with the above-mentioned drawings. Specific embodiments

[0017] In order to make the objectives, features and advantages of the present application more apparent and comprehensible, the specific embodiments of the present application will be described in detail below in conjunction with the drawings. Several embodiments of the present application are given in the drawings. However, the present application can be realized in many different forms, and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0018] It is to be noted that when an element as a preamble is referred to as being "fixed" to another element, it can be directly on the other element or intervening elements can also be present. When used in the "connected", it can be directly connected to the other element or intervening elements can be present at the same time. The terms "vertical", "horizontal", "left", "right", "upper", "lower" and similar expressions used herein are intended for illustrative purposes only and are not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be construed as limiting to the present application.

[0019] In the present application, unless otherwise clearly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and other terms should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0020] Please refer to Figures 1 to 10The utility model provides a kind of battery pack hoisting and assembling structure for transporting battery pack 4 and assembling battery pack 4 with frame, the utility model provides a kind of battery pack hoisting and assembling structure, which includes lifting transport component, lifting assembly, assembling lifting assembly and position fine adjustment component, the lifting transport component includes boom 1, the lifting assembly includes box 2, connecting component and lifting anti-drop mechanism 26, the box 2 is slidably connected on the boom 1, the lifting anti-drop mechanism 26 includes battery pack support 260 and at least four locking units 261, the locking unit 261 includes fixed plate 2611, push rod 2612, tension spring 2613 and locking block 2614, the box 2 is connected the fixed plate 2611 by the connecting component, one side of the fixed plate 2611 towards battery pack support 260 is provided with positioning column 2616, positioning column protection sleeve 2617 is sleeved on the positioning column 2616, positioning groove 2618 is provided on the positioning column protection sleeve 2617, the locking block 2614 is slidably connected with the positioning groove 2618, one end of the push rod 2612 passes through the fixed plate 2611, and is connected with the locking block 2614, tension spring 2613 is arranged between the locking block 2614 and the fixed plate 2611, the tension spring 2613 is sleeved on the push rod 2612, the battery pack support 260 is provided with through locking hole 2604, the battery pack 4 is provided with mounting hole 40, the positioning column 2616 passes through the locking hole 2604 and the mounting hole 40, the locking block 2614 passes through the locking hole 2604, the assembling lifting assembly includes bottom plate 30, storage plate 31 and floating disc 32, the bottom plate 30 is provided with primary lifting mechanism 33, the primary lifting mechanism 33 top is connected with the storage plate 31, the storage plate 31 is provided with secondary lifting mechanism 34 on the side away from the bottom plate 30, the secondary lifting mechanism 34 top is connected with the floating disc 32, the primary lifting mechanism 33 is used to adjust and maintain the height of the storage plate 31, the secondary lifting mechanism 34 is used to adjust and maintain the height of the floating disc 32, the position fine adjustment component includes several cow eye wheels 36, the cow eye wheel 36 includes ball 360 and mounting base 361, the mounting base 361 is arranged on the side of the floating disc 32 away from the storage plate 31, the ball 360 is arranged in the mounting base 361, and the highest point of several ball 360 forms the low-friction bearing surface of the battery pack 4.

[0021] The battery pack support 260 comprises two supporting rods 2601 and two connecting rods 2602, the opposite ends of the two supporting rods 2601 are connected to the two connecting rods 2602, the opposite sides of the two supporting rods 2601 and the opposite sides of the two connecting rods 2602 are provided with a plurality of positioning blocks 2603, and the opposite sides of the two supporting rods 2601 are respectively provided with at least two through locking holes 2604, the number of the locking holes 2604 can be adjusted according to actual needs to match the installation of different types of battery packs 4 of different vehicles.

[0022] The side of the floating disc 32 away from the storage plate 31 is provided with a plurality of spherical pads 37 matched with the bullseye wheel 36, the spherical pads 37 are arranged on the mounting base 361, and the spherical pads 37 have a good buffering effect, reducing damage to the battery pack 4 caused by its own excessive weight when placed.

[0023] The side of the fixed plate 2611 away from the battery pack support 260 is provided with a push rod protection sleeve 2615, the push rod protection sleeve 2615 is sleeved on the push rod 2612, one end of the push rod 2612 away from the fixed plate 2611 is provided with a handle 2619, and the length of the handle 2619 is greater than the diameter of the push rod protection sleeve 2615. Due to the existence of the push rod protection sleeve 2615, the push rod 2612 will not move due to knocking or other factors during hoisting, so as to avoid unstable locking and ensure safety and stability during hoisting.

[0024] The lifting tool transportation assembly further comprises a fixed column 10, a base 11 and a fixed block 12, the lifting arm 1 comprises a cross rod 100 and a sliding plate 101, the base 11 is connected to the fixed column 10 at the top, one side of the fixed column 10 is connected to the cross rod 100, the cross rod 100 is connected to the sliding plate 101 at the bottom, and the adjacent two sides of the fixed block 12 are respectively connected to the fixed column 10 and the sliding plate 101. The arrangement of the fixed block 12 forms stable support between the lifting arm 1 and the fixed column 10, so that the lifting arm 1 reduces shaking caused by instability during transportation of the battery pack 4, and safety and stability during hoisting are improved.

[0025] The side of the sliding plate 101 away from the fixed block 12 is provided with a sliding groove 102 and a transportation motor 13, the box body 2 is provided with an electric pulley 20 matched with the sliding groove 102, and the box body 2 is further provided with a rotating rod 21, the opposite ends of the rotating rod 21 are rotationally connected to the inner wall of the box body 2, and the output ends of the transportation motor 13 are respectively connected to the electric pulley 20 and the rotating rod 21. The transportation motor 13 is used for controlling the electric pulley 20 to make horizontal reciprocating motion along the sliding groove 102 and the rotating rod 21 to rotate clockwise or counterclockwise.

[0026] The connecting assembly comprises a main hoisting rope 22, a lifting ring 23, a sub hoisting rope 24 and a connecting ring 25, one end of the main hoisting rope 22 is connected to the rotating rod 21, the other end of the main hoisting rope 22 passes through the box body 2 and is connected to the lifting ring 23, one end of the sub hoisting rope 24 is connected to the lifting ring 23, the other end of the sub hoisting rope 24 is connected to the connecting ring 25, and the connecting ring 25 is rotationally connected to the fixed plate 2611 away from one end of the sub hoisting rope 24.

[0027] The primary lifting mechanism 33 comprises two lifting units 35, and the secondary lifting mechanism 34 comprises one lifting unit 35, the lifting unit 35 comprises a set of oppositely arranged inner arms, a set of oppositely arranged outer arms, a connecting column 353 and a driving motor 354, opposite ends of the connecting column 353 are rotationally connected to one inner arm and one outer arm and another inner arm and another outer arm respectively, the inner arm comprises an inner upper arm 3501 and an inner lower arm 3502, the outer arm comprises an outer upper arm 3511 and an outer lower arm 3512, one side of the inner lower arm 3502 opposite to each other is provided with a hydraulic oil cylinder 352, one end of the hydraulic oil cylinder 352 away from the inner lower arm 3502 is connected to the outer upper arm 3511, and the output end of the driving motor 354 is connected to two hydraulic oil cylinders 352 respectively, the bottom plate 30, the storage plate 31 and the floating disc 32 are all provided with mounting plates 355 matched with the inner upper arm 3501, the inner lower arm 3502, the outer upper arm 3511 and the outer lower arm 3512, and the inner upper arm 3501, the inner lower arm 3502, the outer upper arm 3511 and the outer lower arm 3512 are rotationally connected to the mounting plates 355 respectively.

[0028] Specific working process, according to the sequence of hoist transporting battery pack 4, primary lifting, fine adjustment and secondary lifting, the specific implementation steps are as follows: First step: hoist transport battery pack 4, the operator moves the hoist assembly above the battery pack 4, by pulling the handle 2619 of the locking unit 261, the locking block 2614 retreats to compress the tension spring 2613, the positioning column 2616 on the fixed plate 2611 is aligned and inserted into the locking hole 2604 of the battery pack support 260 and the mounting hole 40 of the battery pack 4, the handle 2619 is released, under the action of the restoring force of the tension spring 2613, the locking block 2614 quickly pops out and is inserted into the locking hole 2604, the mechanical locking of the battery pack 4 and the hoist anti-drop mechanism 26 is completed, the safety of hoisting is ensured, the transport motor 13 is started, the electric pulley 20 is driven to move along the sliding groove 102 of the sliding plate 101, the box body 2 and the grabbed battery pack 4 are horizontally transported to the upper side of the combined lifting assembly, the transport motor 13 synchronously controls the rotation of the rotating rod 21, the connecting assembly (main hoisting rope 22, lifting ring 23, sub hoisting rope 24 and connecting ring 25) is lowered, the battery pack 4 is stably placed on the position fine adjustment assembly on the upper surface of the floating disc 32, that is, the low-friction bearing surface composed of the ball 360 of the eye-shaped wheel 36.

[0029] Second step: one-time lifting, after the battery pack 4 is placed in position, the one-time lifting mechanism 33 is started, the two lifting units 35 of the one-time lifting mechanism 33 act synchronously, the hydraulic cylinder 352 is controlled by the drive motor 354 to extend, the scissor fork arm structure composed of the inner arm and the outer arm is expanded, the expansion of the fork arm structure drives the whole vertical upward movement of the placement plate 31, the secondary lifting mechanism 34 and the floating disc 32, one-time lifting is carried out, the lifting height can be accurately set through the control system, so that the battery pack 4 is lifted to a position close to the combined vehicle frame, and a pre-positioning height with fine adjustment space is left, the handle 2619 is operated again to release the locking of the locking unit 261, so that the hoist is separated from the battery pack 4, and the hoist assembly moves back to the original position.

[0030] Third step: fine adjustment, after the one-time lifting is completed, if there is a deviation between the mounting hole 40 of the battery pack 4 and the corresponding screw hole on the vehicle frame, the operator can directly apply a horizontal pushing force to the battery pack 4, because the battery pack 4 is supported on the plurality of eye-shaped wheels 36 on the surface of the floating disc 32, the extremely low rolling friction of the ball 360 makes the battery pack 4 of hundreds of kilograms be easily pushed, through observation, the battery pack 4 is precisely slid forward and backward and left and right in the horizontal plane until the mounting hole 40 is completely aligned with the screw hole of the vehicle frame.

[0031] The fourth step: after the fine adjustment of the position of the battery pack 4, the secondary lifting mechanism 34 is started. The single lifting unit 35 of the secondary lifting mechanism 34 starts to work, and the driving motor 354 controls the hydraulic cylinder 352 to extend, so as to lift the floating disc 32. The floating disc 32 drives the battery pack 4 on it to make a final short-stroke lifting. The distance is planned in advance according to the actual situation, so that the mounting holes on the battery pack 4 and the screw holes of the vehicle frame are as high as possible. The battery pack support 260 is tightly pressed on the vehicle frame longitudinal beam. The connecting bolts are inserted through the aligned hole positions and are tightened. The assembly of the battery pack 4 and the vehicle frame is completed. After the assembly is completed, the secondary lifting mechanism 34 and the primary lifting mechanism 33 are sequentially lowered and reset, and the next operation cycle is waited.

[0032] The present application cooperates with multiple functional components, so that the assembly process is changed from simple manual operation to the whole intelligent and efficient process flow from hoisting, primary lifting, fine adjustment, secondary lifting to final pressing and assembly. The technical problems of safety hazards in hoisting of heavy battery pack, difficult assembly alignment, low efficiency and low automation are systematically solved.

[0033] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0034] The above-described embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it cannot be understood as a limitation on the scope of the patent of the present application. It should be noted that for ordinary skilled in the art, without departing from the concept of the present application, several modifications and improvements can be made, which belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A vehicle battery pack lifting and assembly structure for transporting and assembling battery packs with a vehicle frame, characterized in that, The vehicle battery pack hoisting and assembling structure comprises a hoist transportation assembly, a hoist assembly, an assembling lifting assembly and a position fine adjustment assembly, the hoist transportation assembly comprises a hoist arm, the hoist assembly comprises a box, a connecting assembly and a hoist anti-falling mechanism, the box is slidably connected to the hoist arm, the hoist anti-falling mechanism comprises a battery pack support and at least four locking units, the locking unit comprises a fixed plate, a push rod, a tension spring and a locking block, the box is connected to the fixed plate through the connecting assembly, one side of the fixed plate facing the battery pack support is provided with a positioning column, the positioning column is sleeved with a positioning column protection sleeve, the positioning column protection sleeve is provided with a positioning groove, the locking block is slidably connected to the positioning groove, one end of the push rod penetrates through the fixed plate and is connected to the locking block, the tension spring is arranged between the locking block and the fixed plate and is sleeved on the push rod, the battery pack support is provided with a through locking hole, the battery pack is provided with a mounting hole, the positioning column penetrates through the locking hole and the mounting hole, and the locking block penetrates through the locking hole.

2. The battery pack hoisting and assembling structure for vehicle according to claim 1, characterized by The battery pack support comprises two supporting rods and two connecting rods, the opposite ends of the two supporting rods are connected to the two connecting rods, the opposite sides of the two supporting rods and the opposite sides of the two connecting rods are provided with a plurality of positioning blocks, and the opposite sides of the two supporting rods are respectively provided with at least two through locking holes.

3. The battery pack hoisting and assembling structure for vehicle according to claim 1, characterized in that, The side of the floating disc away from the storage plate is provided with a plurality of spherical surface pads matched with the bullseye wheels, and the spherical surface pads are arranged on the mounting base.

4. The battery pack lifting and assembling structure for vehicle according to claim 1, characterized in that, The side of the fixed plate away from the battery pack support is provided with a push rod protection sleeve, the push rod protection sleeve is sleeved on the push rod, one end of the push rod away from the fixed plate is provided with a handle, and the length of the handle is greater than the diameter of the push rod protection sleeve.

5. The battery pack lifting and assembling structure for vehicle according to claim 1, characterized in that, The hoist transportation assembly further comprises a fixed column, a base, and a fixed block, the hoist arm comprises a crossbar and a sliding plate, the top of the base is connected to the fixed column, one side of the fixed column is connected to the crossbar, the bottom of the crossbar is connected to the sliding plate, and adjacent two sides of the fixed block are respectively connected to the fixed column and the sliding plate.

6. The battery pack hoisting and assembling structure for vehicle according to claim 5, characterized in that, The sliding plate is provided with a sliding groove and a conveying motor on the side opposite to the fixed block, the box is provided with an electric pulley matched with the sliding groove, and the box is further provided with a rotating rod, the opposite ends of the rotating rod are rotationally connected with the inner wall of the box, and the output ends of the conveying motor are connected with the electric pulley and the rotating rod respectively, and the conveying motor is used for controlling the electric pulley to make horizontal reciprocating motion along the sliding groove and the rotating rod to rotate clockwise or counterclockwise.

7. The battery pack hoisting and assembling structure for vehicle according to claim 6, characterized in that, The connecting assembly comprises a main lifting rope, a lifting ring, a sub-lifting rope and a connecting ring, one end of the main lifting rope is connected with the rotating rod, the other end of the main lifting rope passes through the box and is connected with the lifting ring, one end of the sub-lifting rope is connected with the lifting ring, the other end of the sub-lifting rope is connected with the connecting ring, and the end of the connecting ring opposite to the sub-lifting rope is rotationally connected with the fixed plate.

8. The battery pack lifting and assembling structure for vehicle according to claim 1, characterized by The primary lifting mechanism comprises two lifting units, the secondary lifting mechanism comprises one lifting unit, the lifting unit comprises a set of oppositely arranged inner arms, a set of oppositely arranged outer arms, a connecting column and a driving motor, the opposite ends of the connecting column are rotationally connected with one inner arm and one outer arm and another inner arm and another outer arm respectively, the inner arm comprises an inner upper arm and an inner lower arm, the outer arm comprises an outer upper arm and an outer lower arm, the opposite sides of the inner lower arm are provided with hydraulic cylinders, the ends of the hydraulic cylinders away from the inner lower arm are connected with the outer upper arm, the output ends of the driving motor are connected with two hydraulic cylinders respectively, the bottom plate, the storage plate and the floating disc are all provided with mounting plates matched with the inner upper arm, the inner lower arm, the outer upper arm and the outer lower arm, and the inner upper arm, the inner lower arm, the outer upper arm and the outer lower arm are rotationally connected with the mounting plates respectively.

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