A low center of gravity forklift body structure

Abstract

This utility model discloses a low center of gravity forklift body structure, including a frame and a main counterweight block mounted on the frame. The frame includes two symmetrically arranged support legs, each support leg comprising a support leg channel steel, with a cast iron unit fixed to the outer side of the support leg channel steel. A side panel is fixed to the cast iron unit, and an auxiliary counterweight plate is installed between the two side panels. This utility model increases the overall weight of the vehicle body through the main counterweight block, the cast iron unit, and the auxiliary counterweight plate. Since the main counterweight block and the cast iron unit are located at the bottom of the vehicle body, the center of gravity of the vehicle body is lowered. This, in turn, shortens the wheelbase, reducing its turning radius and making it suitable for stacking aisles in narrow automated warehouses.

Description

Technical Field

[0001] This utility model belongs to the field of forklift technology, specifically relating to a low center of gravity forklift body structure. Background Technology

[0002] With economic and logistics development, enterprises are increasingly demanding higher warehouse space utilization rates. Narrow automated warehouses can significantly increase storage capacity by reducing stacking aisle width, but traditional forklifts, due to limitations in wheelbase, wheel track, and turning radius, require larger aisle widths, making them difficult to adapt to high-density warehousing needs.

[0003] The forklift chassis is a crucial component of the forklift and a vital part of ensuring the overall stability of the vehicle. Forklift stability is central to safe operation, and the center of gravity height and wheelbase directly affect the risk of tipping over. A lower center of gravity and a longer wheelbase result in better longitudinal stability.

[0004] A forklift's body structure consists of a frame and main counterweight. The frame is mostly welded from channel steel, making it lightweight and resulting in a relatively high center of gravity. To ensure stability during operation, the wheelbase must be lengthened, leading to a larger turning radius and making it unsuitable for operation in narrow aisles of automated warehouses. To adapt to the stacking aisles in narrow automated warehouses, the forklift's body length and wheelbase need to be shortened to reduce its turning radius, thus requiring a lower center of gravity. Utility Model Content

[0005] To address the shortcomings of existing testing equipment, this invention provides a low-center-of-gravity forklift body structure that lowers the vehicle's center of gravity, thereby shortening the wheelbase to reduce its turning radius and making it suitable for stacking aisles in narrow automated warehouses.

[0006] The specific technical solution of this utility model is as follows:

[0007] A low center of gravity forklift body structure includes a frame and a main counterweight block mounted on the frame; the frame includes two symmetrically arranged legs, each leg including a leg channel steel, and a cast unit fixed to the outer side of the leg channel steel; a side plate is fixed to the cast unit, and an auxiliary counterweight plate is installed between the two side plates.

[0008] In a further embodiment, a welded steel plate is fixedly mounted on the casting unit, and the bottom end of the enclosure plate is fixedly connected to the welded steel plate.

[0009] In a further embodiment, a support plate is connected between the two enclosure panels, and the secondary counterweight plate is fixedly installed on the support plate; a connecting plate is connected to the top of the two enclosure panels.

[0010] In a further embodiment, the main counterweight is mounted on a base, and the base is fixedly connected to the support legs and the surrounding plate.

[0011] In a further embodiment, the base includes an upper plate and a lower plate, with symmetrical arc-shaped grooves on one side of the upper and lower plates, and a curved beam connecting the upper and lower plates into one piece located at the edge of the arc-shaped grooves.

[0012] Preferably, the upper plate is connected to the surrounding plate, and the lower plate is connected to the support leg channel steel.

[0013] Preferably, the end of the base is equipped with a mounting plate for mounting obstacle avoidance sensors, the mounting plate is located on the lower plate and connected to the edge of the upper plate; a mounting bracket for mounting a forklift drive unit is installed in the arc-shaped groove.

[0014] In a further embodiment, the front end of the outrigger is equipped with a bottom wheel, and a protective cover is provided on the outside of the bottom wheel, which is fixedly connected to the surrounding plate.

[0015] This utility model has the following beneficial effects:

[0016] 1. This utility model adds a secondary counterweight plate, which increases the weight while reducing its volume, thereby reducing the length of the vehicle body.

[0017] 2. This utility model replaces the existing channel steel structure of the support legs with a combination of channel steel support legs and a cast unit welded together. The channel steel support legs are for easy installation of the components, while the cast unit is a casting made of steel, which greatly increases the weight compared to the channel steel.

[0018] 3. This utility model increases the overall weight of the vehicle body by using a main counterweight block, a cast unit, and a secondary counterweight plate. Since the main counterweight block and the cast unit are located at the bottom of the vehicle body, the center of gravity of the vehicle body is lowered. The wheelbase is shortened to reduce its turning radius, making it suitable for stacking aisles in narrow automated warehouses. Attached Figure Description

[0019] The present invention will now be described in further detail with reference to the accompanying drawings:

[0020] Figure 1 This is the front view of the present invention.

[0021] Figure 2 This is a rear view of the present invention.

[0022] Figure 3 This is a schematic diagram of the vehicle frame structure in this utility model.

[0023] Figure 4 This is a schematic diagram of the support leg in this utility model.

[0024] Figure 5This is a schematic diagram of the base structure in this utility model.

[0025] In the diagram: 1. Frame; 2. Main counterweight; 3. Secondary counterweight plate; 4. Mounting bracket; 5. Bottom wheel.

[0026] Outrigger 1-1, Casting unit 1-11, Outrigger channel steel 1-12, Welded steel plate 1-13, Mounting plate 1-2, Enclosure plate 1-3, Support plate 1-4, Protective cover 1-5, Base 1-6, Upper plate 1-61, Lower plate 1-62, Bent beam 1-63, Connecting plate 1-7. Detailed Implementation

[0027] The present application will now be described in detail with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in the embodiments of the present application can be combined with each other.

[0028] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "fixing," and "fixed installation," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0029] like Figure 1-5 As shown, a low center of gravity forklift body structure includes a frame 1 and a main counterweight 2 mounted on the frame; the frame 1 includes two symmetrically arranged support legs 1-1, each support leg 1-1 including a support leg channel steel 1-12, and a casting unit 1-11 fixed to the outside of the support leg channel steel 1-12; a side plate 1-3 is fixed to the casting unit 1-11, and an auxiliary counterweight plate 3 is installed between the two side plates 1-3.

[0030] This embodiment adds a secondary counterweight plate, increasing weight while reducing volume, thus shortening the vehicle's length. Additionally, the existing channel steel support legs are innovatively redesigned as a combination of channel steel and cast iron units welded together. The channel steel facilitates component installation, while the cast iron units, formed by steel casting, significantly increase weight compared to channel steel. In short, this embodiment increases the overall weight of the vehicle through the main counterweight, cast iron units, and secondary counterweight plate. Since the main counterweight and cast iron units are located at the bottom of the vehicle, the center of gravity is lowered. The wheelbase is shortened to reduce the turning radius, making it suitable for stacking aisles in narrow automated warehouses.

[0031] In another embodiment, such as Figure 4As shown, a welded steel plate 1-13 is fixedly mounted on the casting unit 1-11, and the bottom end of the surrounding plate 1-3 is fixedly connected to the welded steel plate 1-13. Figure 1-3 As shown, the enclosure has an L-shaped structure. Its horizontal section is welded to the welded steel plate 1-13, and its vertical section is welded to the support plate and the connecting plate, respectively, to improve the overall structural stability.

[0032] In another embodiment, a support plate 1-4 is connected between the two enclosure panels 1-3, and the secondary counterweight plate 3 is fixedly installed on the support plate 1-4, specifically by bolts; a connecting plate 1-7 is connected to the top of the two enclosure panels 1-3. The connecting plate 1-7 is welded to both enclosure panels 1-3 and the support plate 1-4 to improve the structural stability of the vehicle body.

[0033] In another embodiment, the main counterweight 2 is mounted on the base 1-6, which is fixedly connected to the support leg 1-1 and the surrounding plate 1-3. The main counterweight 2 is a metal casting, which, when mounted on the base, increases the weight while lowering the center of gravity.

[0034] like Figure 5 As shown, the base 1-6 includes an upper plate 1-61 and a lower plate 1-62. Symmetrical arc-shaped grooves are formed on one side of both the upper plate 1-61 and the lower plate 1-62. A curved beam 1-63, connecting the upper plate 1-61 and the lower plate 1-62 into a single unit, is located at the edge of the arc-shaped groove. The main counterweight 2 can be installed on the outside of the arc-shaped groove. A mounting bracket 4 for installing a forklift drive unit is installed inside the arc-shaped groove, facilitating the installation of the drive unit.

[0035] Preferably, the upper plate 1-61 is connected to the surrounding plate 1-3, and the lower plate 1-62 is connected to the support leg channel steel 1-12.

[0036] The base is divided into upper and lower layers, which are then connected to the surrounding panels and support leg channels to improve connection stability.

[0037] Preferably, the end of the base 1-6 is equipped with a mounting plate 1-2 for mounting an obstacle avoidance sensor, the mounting plate 1-2 is located on the lower plate 1-62 and connected to the edge of the upper plate 1-61.

[0038] like Figure 1 As shown, the front end of the support leg 1-1 is equipped with a bottom wheel 5, and the bottom wheel is covered with a protective cover 1-5, which is fixedly connected to the surrounding plate 1-3.

[0039] Therefore, this embodiment can effectively lower the center of gravity of the vehicle body by combining the casting unit on the outrigger, the main counterweight block and the secondary counterweight plate, thereby using a shorter frame wheelbase, achieving the stability of a conventional long wheelbase frame, and reducing the turning radius.

[0040] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application shall be within the scope of protection of the claims of this application.

Claims

1. A low center of gravity forklift truck body structure comprising a frame (1) and a main counterweight (2) provided on the frame; characterized in that: The frame (1) includes two symmetrically arranged support legs (1-1), each support leg (1-1) includes a support leg channel steel (1-12), and a casting unit (1-11) is fixedly provided on the outside of the support leg channel steel (1-12); a surrounding plate (1-3) is fixedly provided on the casting unit (1-11), and a secondary counterweight plate (3) is installed between the two surrounding plates (1-3).

2. The low center of gravity fork truck body structure of claim 1, wherein: A welded steel plate (1-13) is fixedly mounted on the casting unit (1-11), and the bottom end of the enclosure plate (1-3) is fixedly connected to the welded steel plate (1-13).

3. The low center of gravity fork truck body structure of claim 1 wherein: A support plate (1-4) is connected between the two enclosure panels (1-3), and the secondary counterweight plate (3) is fixedly installed on the support plate (1-4); a connecting plate (1-7) is connected to the top of the two enclosure panels (1-3).

4. The low center of gravity fork truck body structure of claim 1 wherein: The main counterweight (2) is installed on the base (1-6), and the base (1-6) is fixedly connected to the support leg (1-1) and the surrounding plate (1-3) respectively.

5. The body structure of a low center of gravity forklift according to claim 4, characterized in that: The base (1-6) includes an upper plate (1-61) and a lower plate (1-62). The upper plate (1-61) and the lower plate (1-62) are symmetrically provided with arc-shaped grooves on one side. A curved beam (1-63) is provided at the edge of the arc-shaped groove to connect the upper plate (1-61) and the lower plate (1-62) into one piece.

6. A low centre of gravity fork truck body structure according to claim 5 wherein: The upper plate (1-61) is connected to the surrounding plate (1-3), and the lower plate (1-62) is connected to the support leg channel steel (1-12).

7. The low center of gravity fork truck body structure of claim 5 wherein: The base (1-6) is equipped with a mounting plate (1-2) for mounting obstacle avoidance sensors at its end. The mounting plate (1-2) is located on the lower plate (1-62) and connected to the edge of the upper plate (1-61). The arc groove is equipped with a mounting bracket (4) for mounting a forklift drive unit.

8. The low center of gravity fork truck body structure of claim 1 wherein: The front end of the support leg (1-1) is equipped with a bottom wheel (5), and the bottom wheel is covered with a protective cover (1-5), which is fixedly connected to the surrounding plate (1-3).

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