Balance weight of battery changing excavator

Abstract

The utility model relates to the technical field of excavators, and discloses a battery-replacing excavator counter weight which comprises a first counter weight and a second counter weight arranged on the lower surface of the first counter weight, the outer side of the first counter weight is connected with a battery pack, a second installation base is installed on the surface of the battery pack, and an installation hole is formed in the surface of the battery pack. A platform mounting seat is mounted below the battery pack; the first counter weight comprises a sleeve and an insertion hole; and the hoisting hole is formed in the surface of the second balance weight, and the surface of the second balance weight is in threaded connection with a bolt. According to the battery replacement excavator balance weight, the first installation base of the first balance weight makes contact with the second installation base of the battery pack, the sleeve and the installation hole are fixed through a screw, the second balance weight is connected with the platform installation base through a bolt, and meanwhile a lifting ring can be installed at the lifting hole for overall lifting. The plug-in mounting holes are additionally formed in the first counter weight, the counter weight mounting mode is changed, the counter weight and the battery pack form a whole, and the difficulty in disassembling and assembling the battery pack is reduced.

Description

Technical Field

[0001] This utility model relates to the field of excavator technology, specifically to the counterweight of a battery-swapping excavator. Background Technology

[0002] An excavator, also known as a digging machine, is an earthmoving machine that uses a bucket to excavate materials above or below the machine's bearing surface and load them into transport vehicles or unload them into a stockpile. The materials excavated by excavators are mainly soil, coal, silt, and pre-loosened soil and rock. In recent years, the development of construction machinery has been relatively rapid, and excavators have become one of the most important pieces of construction machinery. When operating an excavator, a series of safety regulations and operating procedures must be followed to ensure the safety of the operator and surrounding personnel. The maintenance and upkeep of excavators are also very important, including regular changes to hydraulic oil.

[0003] A typical excavator usually consists of a power unit, working device, slewing mechanism, control mechanism, transmission mechanism, and traveling device. The power unit provides the necessary power to the excavator. The working device performs digging and loading. The slewing mechanism allows the excavator's upper part to rotate 360 ​​degrees. The control mechanism allows the operator to operate the various parts of the excavator manually or via electro-hydraulic controls. The transmission mechanism is responsible for transmitting power from the engine to the other working parts. The traveling device enables the excavator to move around the work site.

[0004] Traditional excavators mostly use diesel engines for power, which suffers from high diesel consumption, significant environmental pollution, and high dependence on energy sources. A few pure electric excavators use lithium iron phosphate battery packs for power, but since excavators typically operate in the field, charging is difficult, and their working time is only five to eight hours, requiring frequent charging and compromising operational continuity, making widespread adoption challenging. To address these issues, some excavators use battery swapping to ensure continuous operation and eliminate the need for frequent charging. However, this method results in a large and heavy rear counterweight for stability. Replacing the battery pack requires external forklifts, and the conventional counterweight occupies rear space, not only failing to meet the requirements but also significantly increasing the difficulty of battery pack removal and installation. Therefore, a battery swapping excavator counterweight solution is proposed. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a counterweight for battery-swapping excavators, thereby solving the technical problems mentioned above, which not only fail to meet the disassembly and assembly requirements but also greatly increase the difficulty of disassembling and assembling battery packs.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a counterweight for a battery-swapping excavator, comprising:

[0007] A first counterweight and a second counterweight disposed on the lower surface of the first counterweight, wherein a battery pack is connected to the outside of the first counterweight and a second mounting base is installed on the surface of the battery pack, and mounting holes are provided on the surface of the battery pack, and a platform mounting base is installed below the battery pack.

[0008] The first counterweight includes a rear panel, a lifting plate, a first connecting plate, and a first mounting base. The lifting plate is mounted on the surface of the rear panel. The first connecting plate is connected to the side of the lifting plate. The first mounting base is connected to the rear panel and the lifting plate. The side of the lifting plate is connected to a second connecting plate and a third connecting plate. A sleeve is connected between the rear panel and the second connecting plate. An insertion hole is added to the surface of the third connecting plate.

[0009] A lifting hole is provided on the surface of the second counterweight, and bolts are threaded onto the surface of the second counterweight. By contacting the first mounting base of the first counterweight with the second mounting base of the battery pack, and then fixing the sleeve to the mounting hole with screws, the first counterweight and the battery pack become an integral unit. The second counterweight is connected to the platform mounting base with bolts. A lifting ring can be installed at the lifting hole for overall lifting of the second counterweight. This structure adds an insertion hole to the first counterweight, changes the installation method of the counterweight, and makes the counterweight and battery pack an integral unit, increasing the convenience of battery pack replacement, greatly saving time and costs, and demonstrating good practicality and adaptability.

[0010] Preferably, the first mounting base and the second mounting base are positioned and shaped in a corresponding manner, and are fitted together. This allows for a fitted connection between the first mounting base and the second mounting base.

[0011] Preferably, the sleeve and the mounting hole are positioned and shaped in a corresponding manner, and both the sleeve and the mounting hole have threaded holes on their surfaces. The sleeve and the mounting hole can be connected by screws through the threaded holes.

[0012] Preferably, there are two sets of lifting plates, and the ends of the lifting plates extend outward through the inner wall of the rear panel, with holes formed on the surface of the lifting plates. The lifting plates can be connected to the corresponding structures through the holes.

[0013] Preferably, there are three sets of sleeves, and the ends of the sleeves are connected to the rear panel. There is one set of insertion holes, and the insertion holes are connected to the rear panel. The rear panel can be connected to the corresponding structure through the sleeves and insertion holes.

[0014] Preferably, the bolts are positioned correspondingly to the platform mounting base, and the bolts are connected to the platform mounting base. This allows the second counterweight to be threadedly connected to the platform mounting base via the bolts.

[0015] Compared with the prior art, this utility model provides a counterweight for battery-swapping excavators, which has the following beneficial effects:

[0016] This battery-swapping excavator's counterweight system integrates the first counterweight with the second battery pack by aligning the first mounting bracket of the first counterweight with the second mounting bracket of the battery pack, and then securing the sleeve and mounting hole with screws. The second counterweight is connected to the platform mounting base via bolts. A lifting ring can be installed at the lifting hole for overall lifting of the second counterweight. This structure adds an insertion hole to the first counterweight, altering the counterweight installation method and making the counterweight and battery pack a unified unit. This increases the convenience of battery pack replacement, reduces the difficulty of disassembling and assembling the battery pack, and significantly saves time. It possesses excellent practicality and adaptability, and meets disassembly and assembly requirements. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the right side of the utility battery pack and its connection structure;

[0019] Figure 3 This is a schematic diagram of the right side view of the first and second counterweight structures of this utility model;

[0020] Figure 4 This is a schematic diagram of the second counterweight and its connection structure of the present invention;

[0021] Figure 5 This is a schematic diagram of the first counterweight and its connection structure of the present invention.

[0022] In the diagram: 1. First counterweight; 2. Second counterweight; 3. Battery pack; 4. Rear panel; 5. Lifting plate; 6. First connecting plate; 7. First mounting base; 8. Sleeve; 9. Insertion hole; 10. Second connecting plate; 11. Third connecting plate; 12. Second mounting base; 13. Mounting hole; 14. Platform mounting base; 15. Bolt; 16. Lifting hole. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] This utility model provides a technical solution for the counterweight of a battery-swapping excavator, including: (See details) Figure 1 , Figure 2 , Figure 3The first counterweight 1 and the second counterweight 2 are disposed on the lower surface of the first counterweight 1. The battery pack 3 is connected to the outside of the first counterweight 1, and a second mounting base 12 is installed on the surface of the battery pack 3. The surface of the battery pack 3 is provided with mounting holes 13, and a platform mounting base 14 is installed below the battery pack 3.

[0025] Please see Figure 5 The first counterweight 1 includes a rear panel 4, a lifting plate 5, a first connecting plate 6, and a first mounting base 7. The lifting plate 5 is installed on the surface of the rear panel 4. The first connecting plate 6 is connected to the side of the lifting plate 5. The first mounting base 7 is connected to the rear panel 4 and the lifting plate 5. The side of the lifting plate 5 is connected to a second connecting plate 10 and a third connecting plate 11. A sleeve 8 is connected between the rear panel 4 and the second connecting plate 10. An insertion hole 9 is added to the surface of the third connecting plate 11.

[0026] Please see Figure 4 A lifting hole 16 is provided on the surface of the second counterweight 2, and a bolt 15 is threaded onto the surface of the second counterweight 2. By contacting the first mounting seat 7 of the first counterweight 1 with the second mounting seat 12 of the battery pack 3, and then fixing the sleeve 8 to the mounting hole 13 with screws, the first counterweight 1 and the battery pack 3 are integrated. The second counterweight 2 is connected to the platform mounting seat 14 by bolts 15. A lifting ring can be installed at the lifting hole 16 for overall lifting of the second counterweight 2. This structure adds an insertion hole 9 to the first counterweight 1, changes the installation method of the counterweight, and integrates the counterweight with the battery pack 3, increasing the convenience of battery pack 3 replacement, greatly saving time and costs, and possessing good practicality and adaptability.

[0027] Please see Figure 1 The first mounting base 7 and the second mounting base 12 are positioned and shaped accordingly, and are fitted together. This allows for a fitted connection between the first mounting base 7 and the second mounting base 12. The sleeve 8 and the mounting hole 13 are positioned and shaped accordingly, and both the sleeve 8 and the mounting hole 13 have screw holes on their surfaces. The sleeve 8 and the mounting hole 13 can be connected by screws through the screw holes.

[0028] Please see Figure 3 , Figure 5 There are two sets of lifting plates 5, and the ends of each lifting plate 5 extend outward through the inner wall of the rear panel 4, with holes formed on the surface of the lifting plate 5. The lifting plate 5 can be connected to the corresponding structure through the holes. There are three sets of sleeves 8, and the ends of the sleeves 8 are connected to the rear panel 4. There is one set of insertion holes 9, and the insertion holes 9 are connected to the rear panel 4. The rear panel 4 can be connected to the corresponding structure through the sleeves 8 and the insertion holes 9.

[0029] Please see Figure 4 The bolt 15 and the platform mounting base 14 are positioned correspondingly, and the bolt 15 and the platform mounting base 14 are connected. This allows the second counterweight 2 to be threadedly connected to the platform mounting base 14 via the bolt 15.

[0030] This solution involves contacting the first mounting base 7 of the first counterweight 1 with the second mounting base 12 of the battery pack 3, and then fixing the sleeve 8 to the mounting hole 13 with screws, so that the first counterweight 1 and the battery pack 3 form an integral unit. The second counterweight 2 is connected to the platform mounting base 14 by bolts 15. At the same time, a lifting ring can be installed at the lifting hole 16, and the second counterweight 2 can be lifted as a whole.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. The counterweight of a battery-swapping excavator, characterized in that, include: The first counterweight (1) and the second counterweight (2) are disposed on the lower surface of the first counterweight (1), and the battery pack (3) is connected to the outside of the first counterweight (1), and a second mounting base (12) is installed on the surface of the battery pack (3), and a mounting hole (13) is opened on the surface of the battery pack (3), and a platform mounting base (14) is installed below the battery pack (3). The first counterweight (1) includes a rear panel (4), a lifting plate (5), a first connecting plate (6), and a first mounting base (7). The lifting plate (5) is installed on the surface of the rear panel (4). The first connecting plate (6) is connected to the side of the lifting plate (5). The first mounting base (7) is connected to the rear panel (4) and the lifting plate (5). The side of the lifting plate (5) is connected to a second connecting plate (10) and a third connecting plate (11). A sleeve (8) is connected between the rear panel (4) and the second connecting plate (10). An insertion hole (9) is added to the surface of the third connecting plate (11). The lifting hole (16) is provided on the surface of the second counterweight (2), and the surface of the second counterweight (2) is threaded with bolts (15).

2. The counterweight for a battery-swapping excavator according to claim 1, characterized in that: The positions and shapes of the first mounting base (7) and the second mounting base (12) correspond to each other, and the first mounting base (7) and the second mounting base (12) are in contact with each other.

3. The counterweight for a battery-swapping excavator according to claim 1, characterized in that: The sleeve (8) and the mounting hole (13) are in a corresponding position and shape relationship, and both the sleeve (8) and the mounting hole (13) have screw holes on their surfaces.

4. The counterweight for a battery-swapping excavator according to claim 1, characterized in that: The number of the lifting plates (5) is two sets, and the ends of the lifting plates (5) extend outward through the inner wall of the rear panel (4), and holes are opened on the surface of the lifting plates (5).

5. The counterweight for a battery-swapping excavator according to claim 1, characterized in that: The sleeves (8) are in three sets, and the ends of the sleeves (8) are connected to the rear panel (4). The insertion holes (9) are in one set, and the insertion holes (9) are connected to the rear panel (4).

6. The counterweight for a battery-swapping excavator according to claim 1, characterized in that: The bolt (15) corresponds to the position of the platform mounting base (14), and the bolt (15) is connected to the platform mounting base (14).

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