Battery assembly lifting device and AMR vehicle

Abstract

The battery combination lifting device comprises a bottom plate, a bearing plate and a lifting structure, the lifting structure is arranged between the bottom plate and the bearing plate, a battery fixing structure is arranged on the bearing plate, a battery pack is placed on the bearing plate through the battery fixing structure, and the lifting structure can drive the bearing plate to do lifting motion and lift the battery pack. The invention further provides an AMR vehicle carrying the battery assembly lifting device, the battery pack can be conveniently borne and transported to an assembly station, the labor intensity of operators can be reduced, and the AMR vehicle is safe, reliable and high in practicability. According to the battery assembling lifting device and the AMR vehicle, the automation degree of a production site can be effectively improved, the battery pack can be borne and transported to an assembling station, the labor intensity of operators can be reduced, safety and reliability are achieved, and the automation degree of the production site is effectively improved.

Description

Technical Field

[0001] The invention belongs to the field of AMR (Autonomous Mobile Robot), and in particular relates to a battery assembly lifting device and an AMR vehicle. Background Art

[0002] AMR (Autonomous Mobile Robot) is a robot that can autonomously navigate and perform specific tasks without human intervention. AMR is widely used in warehousing, logistics, manufacturing and other industrial fields to improve efficiency, reduce costs and optimize operating procedures. During the installation of the automobile chassis, the battery pack needs to be lifted and lifted to the bottom of the automobile chassis to facilitate the production line robot arm to complete the automated assembly of the battery pack.

[0003] In the prior art, manual positioning is mainly performed by an operator, who pushes the battery pack support platform and then lifts the battery pack via a hydraulic cylinder to lift the battery pack to the bottom of the vehicle chassis. This is time-consuming and labor-intensive, and the positioning and installation accuracy of the battery pack cannot be guaranteed. The manual labor intensity is high, and the battery pack is prone to shifting and falling during the battery pack assembly process, causing safety accidents.

[0004] Therefore, there is an urgent need to develop a battery assembly lifting device and AMR vehicle that can facilitate the assembly of battery packs on automobile chassis, can stably support the battery packs during the battery pack assembly process, can carry the battery packs and transport the battery packs to the assembly station, can reduce the labor intensity of operators, is safe and reliable, and can effectively improve the degree of automation of the production site. Summary of the invention

[0005] The present invention is made to solve the above problems, and aims to provide a battery assembly lifting device and AMR vehicle that can facilitate the assembly of battery packs on automobile chassis, can stably support battery packs during the assembly process, can carry battery packs and transport battery packs to assembly stations, can reduce the labor intensity of operators, is safe and reliable, and can effectively improve the degree of automation of the production site. In order to achieve the above purposes, the technical solutions adopted by the present invention are:

[0006] The present invention provides a battery assembly lifting device, which has the following characteristics: it comprises a bottom plate, a supporting plate and a lifting structure, wherein the lifting structure is arranged between the bottom plate and the supporting plate, and a battery fixing structure is arranged on the supporting plate.

[0007] In the battery assembly lifting device provided by the present invention, it can also have such a feature that the lifting structure includes a rotating shaft unit, the rotating shaft unit is arranged on the base plate and the supporting plate, the rotating shaft unit includes a rotating shaft bearing seat and a rotating shaft, the end of the rotating shaft is connected to the rotating shaft bearing seat, and the rotating shaft bearing seat is arranged on the base plate or the supporting plate.

[0008] The battery assembly lifting device provided by the present invention may also have such a feature that the lifting structure further includes a main fork arm unit, a secondary fork arm unit and a guide unit, and the main fork arm unit and the secondary fork arm unit are respectively arranged on both sides of the guide unit.

[0009] In the battery assembly lifting device provided by the present invention, it can also have such a feature that the main fork arm unit includes a first fork arm, a second fork arm, a third fork arm and a fourth fork arm, one end of the first fork arm is connected to the rotating shaft unit on the base plate, the other end of the first fork arm is movably connected to one end of the fourth fork arm, one end of the second fork arm is movably arranged on the base plate, the other end of the second fork arm is movably connected to one end of the third fork arm, an end of the third fork arm away from the second fork arm is movably connected to the fourth fork arm, an end of the fourth fork arm away from the first fork arm is connected to the rotating shaft unit on the supporting plate, a first reinforcing arm is provided on the fourth fork arm, an end of the first reinforcing arm is connected to the fourth fork arm, and the first reinforcing arm is movably connected to the third fork arm.

[0010] In the battery assembly lifting device provided by the present invention, it can also have such a feature that the secondary fork arm unit includes a fifth fork arm, a sixth fork arm, a seventh fork arm and an eighth fork arm, one end of the fifth fork arm is connected to the rotating shaft unit on the base plate, the other end of the fifth fork arm is movably connected to one end of the eighth fork arm, one end of the sixth fork arm is movably arranged on the base plate, the other end of the sixth fork arm is movably connected to one end of the seventh fork arm, an end of the seventh fork arm away from the sixth fork arm is movably connected to the eighth fork arm, and an end of the eighth fork arm away from the fifth fork arm is connected to the rotating shaft unit on the supporting plate.

[0011] In the battery assembly lifting device provided by the present invention, it can also have such a feature that the guide unit includes a guide plate, a first bearing seat and a second bearing seat, the first bearing seat and the second bearing seat are respectively arranged at both ends of the guide plate, the first bearing seat is connected to the second fork arm and the third fork arm, and the second bearing seat is connected to the sixth fork arm and the seventh fork arm.

[0012] In the battery assembly lifting device provided by the present invention, it can also have the following characteristics: a first guide block is provided at the connection between the first fork arm and the fourth fork arm, and the first guide block abuts against the guide plate; a second guide block is provided at the connection between the fifth fork arm and the eighth fork arm, and the second guide block abuts against the guide plate.

[0013] In the battery assembly lifting device provided by the present invention, it can also have the following characteristics: a first guide rail is provided between the second fork arm and the base plate, and one end of the second fork arm is movably arranged on the first guide rail; a second guide rail is provided between the sixth fork arm and the base plate, and one end of the sixth fork arm is movably arranged on the second guide rail.

[0014] The battery assembly lifting device provided by the present invention may also have such a feature that the battery fixing structure is arranged on the supporting plate, the battery fixing structure includes a fixing plate, a slider, a horizontal guide rail and a flap, the horizontal guide rail is arranged on the supporting plate, the slider is movably arranged on the horizontal guide rail, the fixing plate is connected to the slider, the battery is placed on the fixing plate, the flap is movably arranged on the supporting plate, a pressure block is provided on the flap, and the pressure block abuts against the battery.

[0015] The present invention provides an AMR vehicle having the following characteristics: the vehicle comprises an AMR body and the above-mentioned battery assembly and lifting device, wherein the battery assembly and lifting device is arranged on the AMR body.

[0016] The technical effect of the present invention is as follows: the battery assembly lifting device provided by the present invention includes a base plate, a supporting plate and a lifting structure, the lifting structure is arranged between the base plate and the supporting plate, a battery fixing structure is provided on the supporting plate, the battery pack is placed on the supporting plate through the battery fixing structure, the lifting structure can drive the supporting plate to perform lifting movements, lift the battery pack, facilitate the assembly of the battery pack on the automobile chassis, and can stably support the battery pack during the battery pack assembly process. The present invention also provides an AMR vehicle equipped with a battery assembly lifting device, which is convenient for carrying the battery pack and transporting the battery pack to the assembly station, which is beneficial to reducing the labor intensity of operators, is safe and reliable, and can effectively improve the degree of automation at the production site.

[0017] Therefore, the battery assembly lifting device and AMR vehicle provided by the present invention can facilitate the assembly of battery packs on the automobile chassis, can stably support the battery packs during the battery pack assembly process, can carry the battery packs and transport the battery packs to the assembly station, can reduce the labor intensity of operators, is safe and reliable, and effectively improves the degree of automation on the production site. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] This specification includes the following drawings, which show the following contents:

[0019] Figure 1 The structure of the battery assembly lifting device in the embodiment of the present invention is shown in FIG. Figure 1 ;

[0020] Figure 2 The structure of the battery assembly lifting device in the embodiment of the present invention is shown in FIG. Figure 2 ;

[0021] Figure 3The structure of the battery assembly lifting device in the embodiment of the present invention is shown in FIG. Figure 3 ;

[0022] Figure 4 is a schematic structural diagram of a rotating shaft unit in an embodiment of the present invention;

[0023] Figure 5 Schematic diagram of the structure of the main fork arm unit, the secondary fork arm unit and the guide unit in the embodiment of the present invention Figure 1 ;

[0024] Figure 6 Schematic diagram of the structure of the main fork arm unit, the secondary fork arm unit and the guide unit in the embodiment of the present invention Figure 2 ;

[0025] Figure 7 is a schematic structural diagram of a battery fixing structure in an embodiment of the present invention;

[0026] Figure 8 Schematic diagram of the structure of the AMR vehicle in an embodiment of the present invention.

[0027] The following are marked in the figure: AMR body 1, bottom plate 10, bottom frame 11, first hydraulic cylinder 12, supporting plate 20, second hydraulic cylinder 21, lifting structure 30, shaft unit 31, shaft bearing seat 311, shaft 312, main fork arm unit 32, first fork arm 321, second fork arm 322, third fork arm 323, fourth fork arm 324, first reinforcing arm 325, first guide block 326, first guide rail 327, auxiliary Fork arm unit-33, fifth fork arm-331, sixth fork arm-332, seventh fork arm-333, eighth fork arm-334, second guide block-335, second guide rail-336, guide unit-34, guide plate-341, first bearing seat-342, second bearing seat-343, first hydraulic cylinder-35, second hydraulic cylinder-36, battery fixing structure-40, fixing plate-41, slider-42, horizontal guide rail-43, flap-44, pressure block-45. DETAILED DESCRIPTION

[0028] The specific implementation methods of the present invention are further explained in detail below by describing the embodiments with reference to the accompanying drawings, with the aim of helping those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present invention and facilitating their implementation.

[0029] Figure 1 The structure of the battery assembly lifting device in the embodiment of the present invention is shown in FIG. Figure 1 ; Figure 2 The structure of the battery assembly lifting device in the embodiment of the present invention is shown in FIG. Figure 2 ; Figure 3The structure of the battery assembly lifting device in the embodiment of the present invention is shown in FIG. Figure 3 .

[0030] like Figure 1 , Figure 2 as well as Figure 3 As shown, the battery assembly lifting device provided by the present invention includes a base plate 10, a supporting plate 20 and a lifting structure 30. The lifting structure 30 is arranged between the base plate 10 and the supporting plate 20. The supporting plate 20 is provided with a battery fixing structure 40. The battery pack is placed on the supporting plate 20 through the battery fixing structure 40. The lifting structure 30 can drive the supporting plate 20 to perform lifting and lowering movements to lift the battery pack, which is convenient for the battery pack assembly on the automobile chassis and can stably support the battery pack during the battery pack assembly process, which is beneficial to reducing the labor intensity of operators and is safe and reliable.

[0031] Figure 4 Schematic diagram of the structure of the rotating shaft unit in an embodiment of the present invention.

[0032] like Figure 4 As shown, the lifting structure 30 includes a rotating shaft unit 31, which is arranged on the base plate 10 and the supporting plate 20. The rotating shaft unit 31 includes a rotating shaft bearing seat 311 and a rotating shaft 312. The end of the rotating shaft 312 is connected to the rotating shaft bearing seat 311. Two rotating shaft bearing seats 311 are respectively provided at both ends of the rotating shaft 312. The rotating shaft bearing seats 311 are arranged on the base plate 10 or the supporting plate 20. Two groups of rotating shaft units 31 are arranged on the base plate 10, and two groups of rotating shaft units 31 are arranged on the supporting plate 20.

[0033] Figure 5 Schematic diagram of the structure of the main fork arm unit, the secondary fork arm unit and the guide unit in the embodiment of the present invention Figure 1 ; Figure 6 Schematic diagram of the structure of the main fork arm unit, the secondary fork arm unit and the guide unit in the embodiment of the present invention Figure 2 .

[0034] like Figure 5 and Figure 6 As shown, the lifting structure 30 also includes a main fork arm unit 32, a secondary fork arm unit 33 and a guide unit 34. The main fork arm unit 32 and the secondary fork arm unit 33 are respectively arranged on both sides of the guide unit 34, which can effectively improve the stability and carrying capacity of the lifting structure 30, facilitate the assembly of the battery pack on the automobile chassis, and can stably support the battery pack during the battery pack assembly process, which is beneficial to reduce the labor intensity of the operator and is safe and reliable.

[0035] The main fork arm unit 32 includes a first fork arm 321, a second fork arm 322, a third fork arm 323 and a fourth fork arm 324. One end of the first fork arm 321 is connected to the rotating shaft 312 of a group of rotating shaft units 31 on the bottom plate 10, so that one end of the fork arm 321 is rotatably connected to the bottom plate 10, and the other end of the first fork arm 321 is rotatably connected to one end of the fourth fork arm 324 by a hinged manner. One end of the second fork arm 322 is movably arranged on the bottom plate 10, and the other end of the second fork arm 322 is rotatably connected to one end of the third fork arm 323 by a hinged manner. One end of the fork arm 323 away from the second fork arm 322 is rotatably connected to the fourth fork arm 324 by means of a hinge, and one end of the fourth fork arm 324 away from the first fork arm 321 is connected to the shaft 312 of a group of shaft units 31 on the supporting plate 20, so that one end of the fourth fork arm 324 is rotatably connected to the supporting plate 20, and a first reinforcing arm 325 is provided on the fourth fork arm 324, and an end of the first reinforcing arm 325 is connected to the fourth fork arm 324, and the first reinforcing arm is rotatably connected to the third fork arm 323 by means of a hinge, so that the main fork arm unit 32 forms a scissor-type lifting structure.

[0036] The secondary fork arm unit 33 includes a fifth fork arm 331, a sixth fork arm 332, a seventh fork arm 333 and an eighth fork arm 334. One end of the fifth fork arm 331 is connected to the rotating shaft 312 of a group of rotating shaft units 31 on the bottom plate 10, so that one end of a fork arm 321 is rotatably connected to the bottom plate 10, and the other end of the fifth fork arm 331 is rotatably connected to one end of the eighth fork arm 334 by a hinged manner. One end of the sixth fork arm 332 is movably arranged on the bottom plate 10. The other end of 32 is rotatably connected to one end of the seventh fork arm 333 by a hinged manner, one end of the seventh fork arm 333 away from the sixth fork arm 332 is rotatably connected to the eighth fork arm 334 by a hinged manner, and one end of the eighth fork arm 334 away from the fifth fork arm 331 is connected to the shaft 312 of a group of shaft units 31 on the supporting plate 20, so that one end of the fourth fork arm 324 is rotatably connected to the supporting plate 20, so that the secondary fork arm unit 33 forms a scissor-type lifting structure.

[0037] The main fork arm unit 32 and the secondary fork arm unit 33 can effectively improve the structural strength of the lifting structure 30, which is beneficial to improving the stability of the lifting structure 30, facilitating the assembly of the battery pack on the automobile chassis, and can stably support the battery pack during the battery pack assembly process, which is beneficial to reducing the labor intensity of operators and is safe and reliable.

[0038] The guide unit 34 includes a guide plate 341, a first bearing seat 342 and a second bearing seat 343. The two guide plates 341 are arranged parallel to each other. The first bearing seat 342 and the second bearing seat 343 are respectively arranged at both ends of the guide plate 341. The first bearing seat 342 is connected to the second fork arm 322 and the third fork arm 323, so that the second fork arm 322 and the third fork arm 323 can rotate around the first bearing seat 342; the second bearing seat 343 is connected to the sixth fork arm 332 and the seventh fork arm 333, so that the second bearing seat 343 and the sixth fork arm 332 can rotate around the second bearing seat 343.

[0039] A first guide block 326 is provided at the connection between the first fork arm 321 and the fourth fork arm 324, and the first guide block 326 abuts against the guide plate 341, so that the first guide block 326 can slide along the guide plate 341 between the first bearing seat 342 and the second bearing seat 343, so that the connection between the first fork arm 321 and the fourth fork arm 324 can slide along the guide plate 341 between the first bearing seat 342 and the second bearing seat 343; a second guide block 335 is provided at the connection between the fifth fork arm 331 and the eighth fork arm 334, and the second guide block 335 abuts against the guide plate 341, so that the second guide block 335 can slide along the guide plate 341 between the first bearing seat 342 and the second bearing seat 343, so that the connection between the fifth fork arm 331 and the eighth fork arm 334 can slide along the guide plate 341 between the first bearing seat 342 and the second bearing seat 343, so that the main fork arm unit 32 and the secondary fork arm unit 33 can be smoothly lifted and lowered under the action of the guide unit 34, thereby improving the stability of the structure.

[0040] A first guide rail 327 is provided between the second fork arm 322 and the bottom plate 10, and the two second fork arms 322 are arranged flush with each other. A first roller is provided in the middle of the ends of the two second fork arms 322 close to the bottom plate 10, and the first roller is rollably arranged on the first guide rail 327, so that the second fork arms 322 and the bottom plate 10 can be relatively slidably arranged, which can improve the support of the bottom plate 10 for the lifting structure 30; a second guide rail 336 is provided between the sixth fork arm 332 and the bottom plate 10, and the two sixth fork arms 332 are arranged flush with each other. A second roller is provided in the middle of the end portion of 332 close to the base plate 10, and the second roller can be rotatably arranged on the second guide rail 336, so that the sixth fork arm 332 and the base plate 10 can be relatively slidably arranged, which can improve the support of the base plate 10 for the lifting structure 30, is beneficial to improving the stability of the lifting structure 30, facilitates the assembly of the battery pack on the automobile chassis, effectively improves the structural strength of the main fork arm unit 32 and the auxiliary fork arm unit 33, can stably support the battery pack during the battery pack assembly process, is beneficial to reducing the labor intensity of the operator, and is safe and reliable.

[0041] Figure 7 Schematic diagram of the battery fixing structure in an embodiment of the present invention.

[0042] like Figure 7 As shown, the battery fixing structure 40 is arranged on the supporting plate 20, and the battery fixing structure 40 includes a fixing plate 41, a slider 42, a horizontal guide rail 43 and a flap 44. The horizontal guide rail 43 is arranged on the supporting plate 20, and the slider 42 is slidably arranged on the horizontal guide rail 43. The slider 42 is connected to the fixing plate 41, so that the fixing plate 41 can move horizontally relative to the supporting plate 20, which is convenient for fine-tuning the position of the battery pack, which is beneficial to improving the installation accuracy of the battery pack during assembly. The flap 44 is movably arranged on the supporting plate 20, and a pressure block 45 is provided on the flap 44. The pressure block 45 abuts against the side of the battery pack, thereby fixing the battery pack, which is beneficial to improving the installation accuracy of the battery pack during assembly.

[0043] A bottom frame 11 is provided at the bottom of the base plate 10, and the lifting structure 30 also includes a first hydraulic cylinder 35 and a second hydraulic cylinder 36. The first hydraulic cylinder 35 is arranged in the bottom frame 11, and the second hydraulic cylinder 36 is arranged on the side of the supporting plate 20 close to the base plate 10. The telescopic end of the first hydraulic cylinder 35 is connected to the telescopic end of the second hydraulic cylinder 36, so that the supporting plate 20 can be lifted, driving the main fork arm unit 32 and the secondary fork arm unit 33 to deform, thereby improving the stability of the supporting plate 20 and the battery pack during the lifting process. The main fork arm unit 32 and the secondary fork arm unit 33 stably support the battery pack during the battery pack assembly process, which is beneficial to reducing the labor intensity of operators and is safe and reliable.

[0044] Figure 8 Schematic diagram of the structure of the AMR vehicle in an embodiment of the present invention.

[0045] like Figure 8 As shown, the present invention also provides an AMR vehicle equipped with a battery assembly lifting device, the AMR vehicle includes an AMR body 1 and a battery assembly lifting device, the battery assembly lifting device is arranged on the AMR body 1 through a bottom frame 11, which is convenient for carrying the battery pack and transporting the battery pack to the assembly station, which is beneficial to reducing the labor intensity of operators, is safe and reliable, and can effectively improve the degree of automation of the production site.

[0046] Functions and Effects of the Embodiments

[0047] The battery assembly lifting device provided by the present invention includes a base plate 10, a supporting plate 20 and a lifting structure 30. The lifting structure 30 is arranged between the base plate 10 and the supporting plate 20. A battery fixing structure 40 is provided on the supporting plate 20. The battery pack is placed on the supporting plate 20 through the battery fixing structure 40. The lifting structure 30 can drive the supporting plate 20 to perform lifting movements, lift the battery pack, and facilitate the assembly of battery packs on the chassis of the automobile. It can stably support the battery pack during the assembly of the battery pack, which is beneficial to reducing the labor intensity of operators. It is safe and reliable. The present invention also provides an AMR vehicle equipped with a battery assembly lifting device, which is convenient for carrying battery packs and transporting the battery packs to an assembly station, which is beneficial to reducing the labor intensity of operators. It is safe and reliable, and can effectively improve the degree of automation of the production site. The battery assembly lifting device and the AMR vehicle provided by the present invention can facilitate the assembly of battery packs on the chassis of the automobile, can stably support the battery pack during the assembly of the battery pack, can carry the battery pack and transport the battery pack to the assembly station, which can reduce the labor intensity of operators. It is safe and reliable, and effectively improves the degree of automation of the production site.

[0048] The present invention is described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-mentioned methods. As long as various non-substantial improvements are made using the method concept and technical solution of the present invention; or the above concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A battery assembly lifting device, characterized in that: It comprises a base plate (10), a supporting plate (20) and a lifting structure (30); the lifting structure (30) is arranged between the base plate (10) and the supporting plate (20); and a battery fixing structure (40) is arranged on the supporting plate (20).

2. The battery assembly lifting device according to claim 1, characterized in that: The lifting structure (30) comprises a rotating shaft unit (31), wherein the rotating shaft unit (31) is arranged on the base plate (10) and the supporting plate (20), wherein the rotating shaft unit (31) comprises a rotating shaft bearing seat (311) and a rotating shaft (312), wherein an end of the rotating shaft (312) is connected to the rotating shaft bearing seat (311), and the rotating shaft bearing seat (311) is arranged on the base plate (10) or the supporting plate (20).

3. The battery assembly lifting device according to claim 2, characterized in that: The lifting structure (30) further comprises a main fork arm unit (32), a secondary fork arm unit (33) and a guide unit (34); the main fork arm unit (32) and the secondary fork arm unit (33) are respectively arranged on both sides of the guide unit (34).

4. The battery assembly lifting device according to claim 3, characterized in that: The main fork arm unit (32) comprises a first fork arm (321), a second fork arm (322), a third fork arm (323) and a fourth fork arm (324); one end of the first fork arm (321) is connected to the rotating shaft unit (31) on the base plate (10); the other end of the first fork arm (321) is movably connected to one end of the fourth fork arm (324); one end of the second fork arm (322) is movably arranged on the base plate (10); the other end of the second fork arm (322) is movably connected to one end of the third fork arm (323); The ends of the third fork arm (323) are movably connected, one end of the third fork arm (323) away from the second fork arm (322) is movably connected to the fourth fork arm (324), one end of the fourth fork arm (324) away from the first fork arm (321) is connected to the rotating shaft unit (31) on the supporting plate (20), and the fourth fork arm (324) is provided with a first reinforcing arm (325), the end of the first reinforcing arm (325) is connected to the fourth fork arm (324), and the first reinforcing arm (325) is movably connected to the third fork arm (323).

5. The battery assembly lifting device according to claim 4, characterized in that: The secondary fork arm unit (33) comprises a fifth fork arm (331), a sixth fork arm (332), a seventh fork arm (333) and an eighth fork arm (334); one end of the fifth fork arm (331) is connected to the rotating shaft unit (31) on the base plate (10); the other end of the fifth fork arm (331) is movably connected to one end of the eighth fork arm (334); one end of the sixth fork arm (332) is movably arranged on the base plate (10); the other end of the sixth fork arm (332) is movably connected to one end of the seventh fork arm (333); one end of the seventh fork arm (333) away from the sixth fork arm (332) is movably connected to the eighth fork arm (334); and one end of the eighth fork arm (334) away from the fifth fork arm (331) is connected to the rotating shaft unit (31) on the supporting plate (20).

6. The battery assembly lifting device according to claim 5, characterized in that. The guide unit (34) includes a guide plate (341), a first bearing seat (342) and a second bearing seat (343), wherein the first bearing seat (342) and the second bearing seat (343) are respectively arranged at two ends of the guide plate (341), the first bearing seat (342) is connected to the second fork arm (322) and the third fork arm (323), and the second bearing seat (343) is connected to the sixth fork arm (332) and the seventh fork arm (333).

7. The battery assembly lifting device according to claim 6, characterized in that: A first guide block (326) is provided at the connection between the first fork arm (321) and the fourth fork arm (324), and the first guide block (326) abuts against the guide plate (341); a second guide block (335) is provided at the connection between the fifth fork arm (331) and the eighth fork arm (334), and the second guide block (335) abuts against the guide plate (341).

8. The battery assembly lifting device according to claim 7, characterized in that: A first guide rail (327) is provided between the second fork arm (322) and the base plate (10), and one end of the second fork arm (322) is movably disposed on the first guide rail (327); a second guide rail (336) is provided between the sixth fork arm (332) and the base plate (10), and one end of the sixth fork arm (332) is movably disposed on the second guide rail (336).

9. The battery assembly lifting device according to claim 8, characterized in that: The battery fixing structure (40) is arranged on the supporting plate (20), and the battery fixing structure (40) comprises a fixing plate (41), a slider (42), a horizontal guide rail (43) and a flap (44); the horizontal guide rail (43) is arranged on the supporting plate (20); the slider (42) is movably arranged on the horizontal guide rail (43); the fixing plate (41) is connected to the slider (42); the battery is placed on the fixing plate (41); the flap (44) is movably arranged on the supporting plate (20); a pressing block (45) is provided on the flap (44); and the pressing block (45) abuts against the battery.

10. An AMR vehicle, characterized in that: It comprises an AMR body and the battery assembly lifting device according to any one of claims 1 to 9, wherein the battery assembly lifting device is arranged on the AMR body.

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