Novel rear frame of small-sized rubber-tyred electric loader

Abstract

The utility model relates to the technical field of small-sized rubber-tyred electric loaders, in particular to a novel rear frame of a small-sized rubber-tyred electric loader, which comprises a rear frame main body, side plates are arranged on two sides of the rear frame main body, and a hinge seat, a lower hinge assembly, an oil tank fixing plate and a counterweight assembly are respectively arranged between the side plates. The hinge seat and the counterweight assembly are arranged at the two ends of the side plate respectively, the lower hinge assembly is arranged in the middle of the side plate, the oil tank fixing plate is arranged between the lower hinge assembly and the hinge seat, and the two supporting steering column assemblies are arranged above the oil tank fixing plate. According to the rear frame, by optimizing component layout, functional components such as the lithium battery fixing frame, the oil pump motor mounting base and the tire adaptive support are integrated between the two side beams, the size of the frame is remarkably reduced, and the space utilization rate is effectively increased; and the structure of the rear frame is more compact and reasonable.

Description

A new type of rear frame for a small tire-mounted electric loader Technical Field

[0001] This utility model relates to the field of small tire-type electric loaders, and in particular to a novel rear frame for a small tire-type electric loader. Background Technology

[0002] In the research and development and manufacturing of small wheeled electric loaders, the rear frame, as the core load-bearing component supporting the power system, transmission device, and connecting the front frame, directly affects the overall performance and space utilization efficiency of the machine. Traditional rear frame designs often suffer from scattered component layouts and insufficient functional integration. Key components such as lithium battery mounting brackets, oil pump motor mounting seats, and tire adapter brackets are usually arranged independently, which not only occupies a lot of ineffective space, resulting in a bulky overall frame size and increasing the difficulty of equipment transportation and storage, but also limits the expansion of other functional modules due to low space utilization. At the same time, the loose layout makes the connection structure between components complex, further increasing the difficulty of welding and processing, and easily causing welding dimensional deviations and stress concentration problems, affecting the strength and stability of the frame. In addition, the non-integrated design leads to a cumbersome assembly process, requiring multiple positioning and installation of each component, which seriously reduces production efficiency and increases labor and time costs, making it difficult to meet the market's demand for compact and efficient small loaders. Summary of the Invention

[0003] The purpose of this utility model is to address the aforementioned shortcomings in the existing technology by proposing a novel rear frame for a small tire-type electric loader.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A novel rear frame for a small tire-mounted electric loader is designed, comprising a rear frame body. Side plates are provided on both sides of the rear frame body. A hinge seat, a lower hinge assembly, a fuel tank fixing plate, and a counterweight assembly are respectively provided between the side plates. The hinge seat and the counterweight assembly are respectively located at both ends of the side plates. The lower hinge assembly is located in the middle of the side plate. The fuel tank fixing plate is located between the lower hinge assembly and the hinge seat. Two support steering column assemblies are provided above the fuel tank fixing plate. The two support steering column assemblies are respectively fixedly installed on the side wall of the side plate. A foot pedal assembly and a rear mudguard are respectively provided on the outer wall of the side plate. The rear mudguard is located on one side of the foot pedal assembly.

[0006] Furthermore, the hinge seat is provided in two sets, with two hinge seats in each set, and a bending stiffener is provided between every two hinge seats.

[0007] Furthermore, a lithium battery mounting plate is fixedly installed at the top of the lower hinge assembly.

[0008] Furthermore, an oil pump motor mounting plate is fixedly installed on the side wall at the top of one of the side plates, and the oil pump motor mounting plate is positioned between the lower hinge assembly and the counterweight assembly.

[0009] Furthermore, a filling port is provided at the top of the counterweight assembly.

[0010] Furthermore, a fixing hole is provided at the top of the rear mudguard, and the fixing hole is located above the counterweight assembly.

[0011] The present invention proposes a novel rear frame for a small tire-type electric loader, which has the following advantages: By optimizing the component layout, the rear frame of the present invention integrates functional components such as lithium battery mounting bracket, oil pump motor mounting seat, and tire adapter bracket between the two side beams, significantly reducing the frame volume, effectively improving space utilization, and making the rear frame structure more compact and reasonable. Attached Figure Description

[0012] Figure 1 is a first-view structural schematic diagram of the present invention;

[0013] Figure 2 is a schematic diagram of the structure of this utility model from a second perspective.

[0014] Figure 3 is a schematic diagram of the third-view structure of this utility model;

[0015] Figure 4 is a schematic diagram of the fourth perspective structure of this utility model.

[0016] In the diagram: 1. Rear frame main body; 2. Side plate; 3. Hinge seat; 4. Bending stiffener; 5. Foot pedal assembly; 6. Rear mudguard; 7. Counterweight assembly; 8. Lithium battery mounting plate; 9. Lower hinge assembly; 10. Fuel tank mounting plate; 11. Steering column support assembly; 12. Fuel pump motor mounting plate; 13. Filling port; 14. Fixing hole. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0018] Referring to Figures 1-4, a novel rear frame of a small tire-type electric loader includes a rear frame body 1. Side plates 2 are provided on both sides of the rear frame body 1. A hinge seat 3, a lower hinge assembly 9, a fuel tank fixing plate 10, and a counterweight assembly 7 are respectively provided between the side plates 2. The hinge seat 3 and the counterweight assembly 7 are respectively located at both ends of the side plate 2. The top two ends of the counterweight assembly 7 are fixedly installed on the side wall of the side plate 2. The lower hinge assembly 9 is located in the middle of the side plate 2, with both ends fixedly installed on the side wall of the side plate 2. The fuel tank fixing plate 10 is located between the lower hinge assembly 9 and the hinge seat 3, with both ends fixedly installed on the side wall of the side plate 2. Two support steering column assemblies 11 are provided above the fuel tank fixing plate 10, and the two support steering column assemblies 11 are respectively fixedly installed on the side wall of the side plate 2. The outer wall of the side plate 2 is respectively equipped with a foot pedal assembly 5 and a rear mudguard 6. The rear mudguard 6 is located on one side of the foot pedal assembly 5. The rear mudguard 6 is divided into a straight part and an arc-shaped part. The arc-shaped part is used to match the shape of the tire. Different sizes of tires can be installed under the rear mudguard 6, such as 23*8.5-12 tires, 24*13-12 sand tires, etc. (Tires are not part of the frame, so they are not shown in the attached drawings. Secondly, since the connection and installation of tires are well-known technologies, they will not be described in detail). The front frame assembly and the middle support frame are located on the top of the side plate 2. The distance between the two sides of the front frame assembly is the same as the distance between the two side plates 2. It serves to fix and support the steering column assembly 11. It has a large installation space and is easy to install and maintain.

[0019] This utility model only improves the structure of the rear frame. Therefore, the description will provide a detailed description of the improved structure and features of the rear frame, while the structure and features of the front frame and other parts that are not improved will be omitted.

[0020] There are two sets of hinge seats 3, and each set has two hinge seats 3. A bending stiffener 4 is provided between every two hinge seats 3. The two ends of the hinge seats 3 are fixedly installed on the side wall of the side plate 2.

[0021] There are two lower hinge assemblies 9. Each lower hinge assembly 9 has a lithium battery fixing plate 8 fixedly installed at its top to fix the lithium battery. At the same time, the top of the lithium battery fixing plate 8 is flush with the top of the counterweight assembly 7, so that it can be used with the counterweight assembly 7 to fix lithium batteries of different sizes.

[0022] One of the side plates 2 has an oil pump motor mounting plate 12 fixedly installed on its top side wall. The oil pump motor mounting plate 12 is located between the lower hinge assembly 9 and the counterweight assembly 7. The oil pump motor mounting plate 12 can be connected to the oil pump motor by fixing bolts. The top of the oil pump motor mounting plate 12 is flush with the top straight part of the rear mudguard 6. The oil pump motor can be fixed on the oil pump motor mounting plate 12 and the rear mudguard 6, so that different models of oil pumps can be used, improving applicability and stability.

[0023] The top of the counterweight assembly 7 is equipped with a filling port 13, which can be used to fill and install the counterweight according to the user's actual working conditions.

[0024] The top of the rear mudguard 6 has a fixing hole 14, which is located above the counterweight assembly 7 and cooperates with the front frame to install the sunshade. The installation and disassembly are convenient and conducive to assembly production.

[0025] In summary, this utility model's rear frame, by optimizing the component layout, integrates functional components such as the lithium battery mounting bracket, oil pump motor mounting seat, and tire adapter bracket between the two side beams, significantly reducing the frame volume, effectively improving space utilization, and making the rear frame structure more compact and reasonable.

[0026] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A new type of rear frame of a small-sized electric tire loader, comprising a rear frame body (1), characterized in that: The rear frame body (1) is provided with side plates (2) on both sides. The side plates (2) are respectively provided with a hinge seat (3), a lower hinge assembly (9), a fuel tank fixing plate (10) and a counterweight assembly (7). The hinge seat (3) and the counterweight assembly (7) are respectively provided at both ends of the side plates (2). The lower hinge assembly (9) is provided at the middle position of the side plates (2). The fuel tank fixing plate (10) is provided between the lower hinge assembly (9) and the hinge seat (3). Two support steering column assemblies (11) are provided above the fuel tank fixing plate (10). The two support steering column assemblies (11) are respectively fixedly installed on the side wall of the side plate (2). The outer wall of the side plate (2) is respectively provided with a foot pedal assembly (5) and a rear mudguard (6). The rear mudguard (6) is provided on one side of the foot pedal assembly (5).

2. The rear frame of a novel small tire-type electric loader according to claim 1, characterized in that: The hinge seat (3) is provided in two sets, and each set of the hinge seat (3) has two hinge seats (3), and a bending stiffener (4) is provided between each two hinge seats (3).

3. The rear frame of a novel small tire-type electric loader according to claim 1, characterized in that: A lithium battery mounting plate (8) is fixedly installed at the top of the lower hinge assembly (9).

4. The rear frame of a novel small tire-type electric loader according to claim 1, characterized in that: One of the side plates (2) has an oil pump motor mounting plate (12) fixedly installed on the side wall at the top, and the oil pump motor mounting plate (12) is located between the lower hinge assembly (9) and the counterweight assembly (7).

5. The rear frame of a novel small tire-type electric loader according to claim 1, characterized in that: The top of the counterweight assembly (7) is provided with a filling port (13).

6. A new and improved rear frame for a small electric tire loader as set forth in claim 1, wherein: The rear mudguard (6) has a fixing hole (14) at its top, and the fixing hole (14) is located above the counterweight assembly (7).

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