Battery pack disassembling and assembling device and energy storage battery rack

Abstract

The utility model relates to the technical field of energy storage battery disassembly and assembly, and provides a battery pack disassembly and assembly device and an energy storage battery rack, the battery pack disassembly and assembly device comprises a battery pack supporting cross beam, and a first through hole is formed in the bottom of the battery pack supporting cross beam; the supporting assembly is arranged between the upper and lower adjacent battery pack supporting cross beams; the lifting wedge is arranged on the supporting assembly; the pull rod is slidably arranged on the supporting assembly, a sliding rolling body is rotatably arranged at the top of the pull rod, and a lifting rolling body is rotatably arranged at the bottom of the pull rod; the pull rod is used for switching the battery pack disassembling and assembling device between a working state and a non-working state; in a working state, the lifting rolling body slides to the top of the lifting wedge, so that the sliding rolling body is higher than the first through hole; and in a non-working state, the lifting rolling body slides to the bottom of the lifting wedge, so that the sliding rolling body is lower than the first through hole. According to the battery pack disassembling and assembling device and the battery energy storage frame, the battery pack is convenient to disassemble and assemble, the structure is simplified, and the product cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage battery disassembly and assembly, and in particular to a battery pack disassembly and assembly device and an energy storage battery rack. Background Art

[0002] In order to reduce the cost of the product system, the current lithium battery energy storage system pursues the continuous increase of energy density. Therefore, the stacking density of battery packs in the prefabricated cabin is getting higher and higher, the gaps between battery packs are constantly compressed, and the weight of a single battery pack is increasing. For example, the weight of a 52-string battery pack is about 300Kg, and the weight of a 104-string battery pack is about 600Kg. If the equipment is running, due to manufacturing defects of individual cells, the battery pack needs to be replaced. The convenience, high efficiency and low cost of product maintenance can not only improve the performance of the product life cycle, but also improve the market competitiveness of the product. In particular, power equipment is related to the economic activities of the people. Therefore, the convenience and high efficiency of energy storage product maintenance are very important.

[0003] In the prior art, a rolling structure is usually provided on the battery pack support beam to facilitate the installation and removal of the battery pack. However, the rolling structure is provided on the battery rack body structure, which increases the complexity of the battery rack structure system and further increases the structural cost of the product. Utility Model Content

[0004] The utility model provides a battery pack disassembly and assembly device and an energy storage battery rack, which are used to solve the defect in the prior art that a rolling structure is arranged on a battery rack body structure, increasing the complexity of the battery rack structure system, simplifying the battery rack structure system, and reducing the structural cost of the product.

[0005] The utility model provides a battery pack disassembly and assembly device, comprising:

[0006] The battery pack supporting beam is arranged on the battery rack; and a first through hole is formed at the bottom of the battery pack supporting beam;

[0007] A support assembly is disposed between two upper and lower adjacent battery pack support beams;

[0008] a lifting wedge, disposed on the support assembly;

[0009] A pull rod is slidably arranged on the support assembly, and a sliding rolling body is rotatably arranged on the top of the pull rod, and a lifting rolling body is rotatably arranged on the bottom of the pull rod;

[0010] The pull rod is used to switch the battery pack disassembly and assembly device between a working state and a non-working state;

[0011] In the working state, the lifting rolling body slides to the top of the lifting wedge so that the sliding rolling body is higher than the first through hole; in the non-working state, the sliding rolling body slides to the bottom of the lifting wedge so that the sliding rolling body is lower than the first through hole.

[0012] A battery pack disassembly and assembly device according to the utility model also includes:

[0013] A linear drive mechanism is connected to the pull rod, and the linear drive mechanism drives the pull rod to move.

[0014] According to a battery pack disassembly and assembly device provided by the utility model, the linear drive mechanism is a bidirectional hydraulic cylinder.

[0015] According to a battery pack disassembly and assembly device provided by the utility model, the support assembly includes:

[0016] A bracket, the top of which is provided with the linear drive mechanism;

[0017] A support beam is connected to the bracket, and the bracket is arranged between two adjacent battery pack support beams; the pull rod is slidably arranged on the support beam.

[0018] According to a battery pack disassembly and assembly device provided by the utility model, the support beam includes a hollow square steel structure, and the pull rod is slidably arranged inside the support beam, and a second through hole is opened on the top side of the hollow square steel structure, and the second through hole is for the sliding rolling body to pass through.

[0019] A battery pack disassembly and assembly device according to the utility model also includes:

[0020] A guide rail is arranged on the top of the support beam, and the top of the guide rail is provided with the lifting wedge; the guide rail is used to provide guidance for the lifting rolling body.

[0021] According to a battery pack disassembly and assembly device provided by the utility model, it also includes a limiting structure, and the limiting structure is used to limit the stretching stroke of the pull rod.

[0022] According to a battery pack disassembly and assembly device provided by the utility model, the limiting structure includes:

[0023] A limit block, arranged at the bottom of the pull rod;

[0024] A limit pin is arranged on the support beam, and at the maximum stretching stroke of the pull rod, the limit block and the limit pin are in contact with each other.

[0025] According to a battery pack disassembly and assembly device provided by the utility model, the sliding rolling body, the lifting rolling body, the first through hole and the lifting wedge are each provided in plurality, and one of the first through holes corresponds to at least one of the sliding rolling body and the corresponding setting, and the lifting wedge and the lifting rolling body are provided in one-to-one correspondence.

[0026] The utility model also provides an energy storage battery rack, comprising the battery pack disassembly and assembly device as described above.

[0027] The battery pack disassembly and assembly device provided by the utility model is provided with a first through hole at the bottom of the battery pack support beam, the support assembly is arranged between two upper and lower adjacent battery pack support beams, the lifting wedge is arranged on the support assembly, the pull rod is slidably arranged on the support assembly, and the pull rod is slidably arranged on the support assembly, and the top of the pull rod is rotatably arranged with a sliding rolling body, and the bottom of the pull rod is rotatably arranged with a lifting rolling body, the pull rod is used to switch the battery pack disassembly and assembly device between a working state and a non-working state, and in the working state, the lifting rolling body slides to the top of the lifting wedge to make the sliding rolling body higher than the first through hole. hole; in the non-working state, the lifting rolling body slides to the bottom of the lifting wedge so that the sliding rolling body is lower than the first through hole; a first through hole is set on the battery pack support beam and provides support for the support assembly to facilitate the disassembly and assembly of the battery pack; through the combination of the lifting wedge, the lifting rolling body and the sliding rolling body, the lifting rolling body rolls and displaces on the lifting wedge to reduce friction, and the sliding rolling body will lift the battery pack as the pull rod rises. During the lifting process, the pull rod will translate to the outside of the battery pack, and the sliding rolling body will roll on the bottom surface of the battery pack, fully avoiding the protection of the outer layer of the battery pack by friction movement.

[0028] The utility model also provides a battery energy storage rack, which includes the battery pack disassembly device as described above and therefore has the various advantages as described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 It is a structural schematic diagram of a battery pack disassembly and assembly device in one embodiment of the utility model;

[0031] Figure 2 This is an exploded view of a battery pack disassembly and assembly device in one embodiment of the utility model;

[0032] Figure 3It is a structural schematic diagram of a battery rack in one embodiment of the utility model;

[0033] Figure 4 It is a side view of a battery pack disassembly and assembly device in a non-working state in one embodiment of the utility model;

[0034] Figure 5 It is a side view of the working state of the battery pack disassembly and assembly device in one embodiment of the utility model;

[0035] Figure 6 This is one of the schematic diagrams of the use process of the battery pack disassembly and assembly device in one embodiment of the utility model;

[0036] Figure 7 This is the second schematic diagram of the use process of the battery pack disassembly and assembly device in one embodiment of the utility model;

[0037] Reference numerals:

[0038] 1. Battery pack support beam; 101. First through hole; 2. Support assembly; 3. Lifting wedge; 4. Pull rod; 5. Sliding rolling body; 6. Lifting rolling body; 7. Linear drive mechanism; 8. Guide rail; 9. Limit block; 10. Limit pin;

[0039] 21. bracket; 22. support beam; 221. second through hole;

[0040] 100. Battery rack; 200. Battery pack; 300. Transport forklift. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described clearly and completely in conjunction with the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0042] In the description of the embodiments of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present utility model 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 cannot be understood as limiting the embodiments of the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0043] Combine the following Figures 1 to 7 The utility model is described as a battery pack disassembly and assembly device.

[0044] like Figure 1 , Figure 2 and Figure 3 As shown, the utility model provides a battery pack disassembly and assembly device, including a battery pack supporting beam 1, a supporting assembly 2, a lifting wedge 3, a pull rod 4, a sliding rolling body 5, and a lifting rolling body 6.

[0045] The battery pack support beam 1 is arranged on the battery rack 100; each battery pack is provided with a battery pack support beam 1 on both sides to support the battery pack 200. A first through hole 101 is provided at the bottom of the battery pack support beam 1, and the first through hole 101 is usually a long hole.

[0046] like Figure 1 As shown, the support assembly 2 is disposed between two upper and lower adjacent battery pack support beams 1 , that is, the lower battery pack support beam 1 forms a load-bearing function for the support assembly 2 .

[0047] like Figure 2 As shown, the lifting wedge 3 is arranged on the support assembly 2. The pull rod 4 is slidably connected to the support assembly 2, and the top of the pull rod 4 is rotatably provided with a sliding rolling body 5, and the bottom of the pull rod 4 is rotatably provided with a lifting rolling body 6. Among them, the sliding rolling body 5 and the lifting rolling body 6 can adopt bearings or other rotatable structures.

[0048] like Figure 4 and Figure 5 As shown, under the action of the pull rod 4, the battery pack disassembly and assembly device switches between a working state and a non-working state; in the working state, the lifting rolling body 6 slides to the top of the lifting wedge 3 so that the sliding rolling body 5 is higher than the first through hole 101; in the non-working state, the sliding rolling body 5 slides to the bottom of the lifting wedge 3 so that the sliding rolling body 5 is lower than the first through hole 101.

[0049] Through the combination of the lifting wedge 3, the lifting rolling body 6 and the sliding rolling body 5, the lifting rolling body 6 rolls and displaces on the lifting wedge 3 to reduce friction, and the sliding rolling body 5 will lift the battery pack as the pull rod 4 rises. During the lifting process, the pull rod 4 will translate to the outside of the battery pack, and the sliding rolling body 5 will roll on the bottom surface of the battery pack 200, fully avoiding the protection of the outer layer of the battery pack 200 by friction movement.

[0050] like Figure 1 , Figure 2 , Figure 4 and Figure 5As shown, in a feasible embodiment of the present invention, a linear drive mechanism 7 is further included, which is connected to the pull rod 4, and the linear drive mechanism 7 drives the pull rod 4 to move. Under the drive of the linear drive mechanism 7, the pull rod 4 rolls and displaces the lifting rolling body 6 on the lifting wedge 3, reducing friction, thereby reducing the driving force requirement of the linear drive mechanism 7.

[0051] In a feasible embodiment of the utility model, the linear drive mechanism 7 is a bidirectional hydraulic cylinder. The linear drive mechanism 7 can also be set as a bidirectional air cylinder or a bidirectional electric cylinder. In other words, as long as it can achieve linear motion, it can be used. In addition, the bidirectional hydraulic cylinder can be a manual hydraulic cylinder. The use of a manual hydraulic cylinder can simplify the difficulty of on-site operation and improve the reliability of the system.

[0052] In the above embodiments, a lifting wedge 3, a lifting rolling body 6 and a sliding rolling body 5 are combined. When the pull rod 4 is driven by the linear drive mechanism 7, the lifting rolling body 6 rolls and displaces on the lifting wedge 3, thereby reducing friction and thus reducing the demand for hydraulic driving force. The sliding rolling body 5 will lift the battery pack 200 as the pull rod 4 rises. During the lifting process, the pull rod 4 will also move to the outside of the battery rack 100, while the sliding rolling body 5 can roll on the bottom surface of the battery pack, which can fully avoid the protection of the outer layer of the battery pack by friction movement. In addition, it can also reduce friction and the demand for hydraulic driving force.

[0053] See again Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, in a feasible embodiment of the utility model, the support assembly 2 includes a bracket 21 and a support beam 22. A linear drive mechanism 7 is arranged on the top of the bracket 21 to provide an installation platform for the linear drive mechanism 7. The support beam 22 is connected to the bracket 21, and the bracket 21 is arranged between two adjacent battery pack support beams 1, that is, the bottom of the support beam 22 is placed on the bottom battery pack support beam 1, and a pull rod 4 is slidably arranged on the support beam 22. When in working state, the support beam 22 can extend between two adjacent battery pack support beams 1.

[0054] See again Figure 2As shown, in a feasible embodiment of the present invention, the support beam 22 includes a hollow square steel structure. The support beam 22 is a hollow square steel body, which not only ensures sufficient strength, but also reduces the overall weight to a certain extent, and also provides installation space for the pull rod 4. The pull rod 4 is slidably arranged inside the support beam 22, and the pull rod 4 can move inside the support beam 22 along its length direction without protruding from the side or top of the support beam 22. A second through hole 221 is opened on the top side of the hollow square steel structure, and the second through hole 221 is for the sliding rolling body 5 to pass through, providing a path for the sliding rolling body 5 to pass through.

[0055] See again Figure 2 As shown, in a feasible embodiment of the utility model, a guide rail 8 is also included, and the guide rail 8 is arranged on the top of the support beam 22, and a lifting wedge 3 is arranged on the top of the guide rail 8; the guide rail 8 is used to provide guidance for the lifting rolling body 6. The guide rail 8 can be a long steel rail with a smooth surface and precise dimensions to ensure that the lifting rolling body 6 can roll smoothly on it and remain on the correct path. The lifting wedge 3 is installed on the top of the guide rail 8, which is usually a component with an inclined surface. When the lifting rolling body 6 rolls along the guide rail 8 and contacts the inclined surface of the lifting wedge 3, it will be gradually lifted or guided to a higher position. The inclination angle and shape of the lifting wedge 3 can be designed according to specific needs to achieve the desired lifting effect. When the lifting rolling body 6 rolls along the guide rail 8, it will be guided and lifted by the lifting wedge 3, so as to achieve position or height adjustment.

[0056] In a feasible embodiment of the utility model, a limiting structure is also included, which is used to limit the stretching stroke of the pull rod 4. The limiting structure can mechanically limit the pulling stroke of the linear drive mechanism 7 to avoid over-positioning of the hydraulic cylinder and damage to the support assembly 2.

[0057] See again Figure 2 As shown, in a feasible embodiment of the present utility model, the limiting structure may include a limiting block 9 and a limiting pin 10. The limiting block 9 is arranged at the bottom of the pull rod 4. The limiting block 9 may be a protruding part fixed on the pull rod 4. The shape and size can be designed as needed. The limiting pin 10 is arranged on the support beam 22, which is usually a small pin or bolt detachably arranged on the support beam 22. At the maximum stretching stroke of the pull rod 4, the limiting block 9 and the limiting pin 10 abut against each other, thereby preventing the pull rod 4 from sliding further, and mechanically limiting the pulling stroke of the linear drive mechanism 7. This design can prevent the pull rod 4 from being overstretched or damaged, and ensure the safety and stability of the battery pack disassembly and assembly device.

[0058] See again Figure 1As shown, in a feasible embodiment of the utility model, the sliding roller 5, the lifting roller 6, the first through hole 101 and the lifting wedge 3 are each provided in plurality, and one first through hole 101 is provided corresponding to at least one sliding roller 5, and the lifting wedge 3 and the lifting roller 6 are provided in one-to-one correspondence. Specifically, the sliding roller 5 and the lifting roller 6 are provided in pairs, and on the pull rod 4, there are multiple pairs of sliding rollers 5 and lifting rollers 6 arranged at even distances. In the process of lifting the battery pack, it can be ensured that the battery pack is subjected to uniform force, and the structural safety of the battery pack disassembly and assembly device during operation is ensured. In addition, the sliding roller 5 and the lifting roller 6 can both use bearings. The coordinated use of multiple pairs of bearings can reduce the force on a single bearing, thereby reducing the outer dimensions of the bearing and improving the spatial adaptability of the support assembly 2.

[0059] Correspondingly, the lifting wedge 3 also adopts a paired structure, corresponding to a pair of bearings, which can mechanically limit the push-down stroke of the linear drive mechanism 7 to avoid over-stroke of the linear drive mechanism 7.

[0060] The battery pack disassembly and assembly device provided by the utility model is divided into a working state and a non-working state. In the non-working state, the sliding rolling body 5 is located in the support beam 22 and is lower than the second through hole; in the working state, the sliding rolling body 5 protrudes out of the support beam 22 through the second through hole 221 on the support beam 22, and protrudes out of the first through hole 101 to support the battery pack.

[0061] The use process of the battery pack disassembly and assembly device provided by the utility model is: place the support assembly 2 on the load-bearing surface of the lower battery pack support beam 1, and ensure that the second through hole 221 of the battery pack disassembly and assembly device corresponds to the first through hole 101 on the battery pack support beam 1 through dimensional positioning.

[0062] After the battery pack disassembly and assembly device is accurately positioned, the pull rod 4 is driven to move through an electric or manual hydraulic pump. The pull rod 4 moves, causing the lifting rolling body 6 to roll on the lifting wedge 3. During the rolling of the lifting rolling body 6, the pull rod 4 together with the sliding rolling body 5 will be raised. The sliding rolling body 5 acts on the bottom side of the battery pack through the second through hole 221 and the first through hole 101, and supports the bottom of the battery pack, thereby realizing the transfer of the load-bearing of the battery pack from the battery pack to the sliding rolling body 5. The battery pack 200 bears the weight on the sliding rolling body 5, and the battery pack can be moved easily and labor-savingly, so that the battery pack 200 can be removed from the battery rack for convenient maintenance.

[0063] like Figure 6 and Figure 7 As shown, after the battery pack 200 is removed from the battery rack 100, the battery pack can be transported by a transport forklift 300, thereby finally realizing the closed-loop transportation of the battery pack 200 for disassembly and assembly. At the same time, the battery pack disassembly and assembly device can be compatible with a battery rack with 104 battery packs in series.

[0064] When installing the battery pack 200 into the energy storage battery rack 100, the battery pack disassembly and assembly device is located in a suitable position, and then the disassembly and assembly tool is driven by the linear drive mechanism 7 to be in a working state, that is, the sliding roller 5 on the pull rod 4 protrudes from the first through hole 101 on the battery pack support beam 1 and is located at the highest point. The battery pack 200 is placed on the sliding roller 5 by a transport forklift 300, and then the battery pack 200 is easily pushed into the battery rack 100. After the battery pack 200 is accurately in place, the linear drive mechanism 7 drives in reverse to lower the height of the sliding roller 5, and transfers the weight of the battery pack 200 to the battery pack support beam 1, thereby finally realizing the installation of the battery pack 200.

[0065] The energy storage battery rack provided by the present invention is described below. The energy storage battery rack described below and the battery pack disassembly and assembly device described above can be referenced to each other.

[0066] The second aspect of the present invention provides an energy storage battery rack, comprising a battery pack disassembly and assembly device as described in any of the above embodiments, wherein the rack comprises a plurality of battery pack support beams 1, and each battery pack 200 corresponds to two battery pack support beams 1.

[0067] The energy storage battery rack provided by the utility model has the various advantages as described above because it includes the battery pack disassembly and assembly device as described above.

[0068] In the description of the embodiments of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0069] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "mode", "specific mode", or "some modes" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or mode are included in at least one embodiment or mode of the utility model embodiment. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or mode. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or modes in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or modes described in this specification and the features of the different embodiments or modes, without contradiction.

[0070] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A battery pack disassembly and assembly device, characterized in that: include: A battery pack supporting crossbeam (1) is arranged on a battery rack (100); A first through hole (101) is provided at the bottom of the battery pack supporting crossbeam (1); A support assembly (2) is arranged between two upper and lower adjacent battery pack support beams (1); A lifting wedge (3) is arranged on the supporting assembly (2); A pull rod (4) is slidably arranged on the support assembly (2), and a sliding rolling body (5) is rotatably arranged on the top of the pull rod (4), and a lifting rolling body (6) is rotatably arranged on the bottom of the pull rod (4); The pull rod (4) is used to switch the battery pack disassembly and assembly device between a working state and a non-working state; In the working state, the lifting rolling body (6) slides to the top of the lifting wedge so that the sliding rolling body (5) is higher than the first through hole (101); In the non-working state, the sliding rolling body (5) slides to the bottom of the lifting wedge (3) so that the sliding rolling body (5) is lower than the first through hole (101).

2. The battery pack disassembly and assembly device according to claim 1, characterized in that: Also includes: A linear drive mechanism (7) is connected to the pull rod (4), and the linear drive mechanism (7) drives the pull rod (4) to move.

3. The battery pack disassembly and assembly device according to claim 2, characterized in that: The linear drive mechanism (7) is a bidirectional hydraulic cylinder.

4. The battery pack disassembly and assembly device according to claim 2, characterized in that: The support assembly (2) comprises: A bracket (21), the top of which is provided with the linear drive mechanism (7); A support beam (22) is connected to the bracket (21), and the bracket (21) is arranged between two adjacent battery pack support beams (1); the pull rod (4) is slidably arranged on the support beam (22).

5. The battery pack disassembly and assembly device according to claim 4, characterized in that: The support beam (22) comprises a hollow square steel structure, and the pull rod (4) is slidably arranged inside the support beam (22), and a second through hole (221) is opened on the top side of the hollow square steel structure, and the second through hole (221) is for the sliding rolling body (5) to pass through.

6. The battery pack disassembly and assembly device according to claim 4, characterized in that: Also includes: A guide rail (8) is arranged at the top of the support beam (22), and the lifting wedge (3) is arranged at the top of the guide rail (8); the guide rail (8) is used to provide guidance for the lifting rolling body (6).

7. The battery pack disassembly and assembly device according to claim 4, characterized in that: It also comprises a limiting structure, wherein the limiting structure is used to limit the stretching stroke of the pull rod (4).

8. The battery pack disassembly and assembly device according to claim 7, characterized in that: The limiting structure comprises: A limit block (9) is arranged at the bottom of the pull rod (4); The limit pin (10) is arranged on the support beam (22), and at the maximum stretching stroke of the pull rod (4), the limit block (9) and the limit pin (10) are in abutment with each other.

9. The battery pack disassembly and assembly device according to claim 1, characterized in that: The sliding rolling body (5), the lifting rolling body (6), the first through hole (101) and the lifting wedge (3) are each provided in plurality, and one of the first through holes (101) is provided for at least one of the sliding rolling bodies (5), and the lifting wedge (3) and the lifting rolling body (6) are provided in one-to-one correspondence.

10. An energy storage battery rack, characterized in that: It comprises a battery pack disassembly and assembly device as described in any one of claims 1 to 9.

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