Forklift lithium battery framework

Abstract

The utility model provides a forklift lithium battery framework, which belongs to the technical field of carrying equipment and comprises a chassis, two sides of the chassis are symmetrically connected with side plates, the side plate on one side is fixedly connected with a hydraulic oil tank, an outlet of the hydraulic oil tank is communicated with a gear pump, the gear pump is connected with an oil pump motor, and the front end of a frame is connected with a first fixing plate. The oil pump motor is fixedly connected to the first fixing plate. A second fixing plate is connected between two side plates at the front end of the oil pump motor, a gearbox is fixedly connected to the second fixing plate, the input end of the gearbox is connected with a traction motor, and the output end of the gearbox is connected with a drive axle; a battery is connected to the chassis at the rear end of the gearbox, a controller is installed on the top of the battery, and the battery drives the traction motor and the oil pump motor. The hydraulic oil tank and the side plates are integrally designed, the traction motor and the oil pump motor are arranged at the front end, the battery containing space is enlarged, the height and the center of a battery are reduced, and the stability of the whole machine is facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of handling equipment, and particularly relates to a lithium battery architecture for a forklift. Background Art

[0002] An electric forklift refers to a forklift that operates with electricity, and most of them work with a storage battery. A storage battery is a type of battery, and its function is to store limited electric energy and use it in a suitable place. Its working principle is to convert chemical energy into electric energy. Currently, the body structures of electric forklifts are mostly in two situations. One is to divide the vehicle body into two layers. The upper layer mainly places main components such as a road valve, a controller assembly, and a covering part, and the lower layer places the storage battery. In this case, the storage battery has the problem of being easily punctured by sharp objects on the ground and catching fire. The other is to adopt a two-side box structure, where the battery is located in the middle and rear of the frame. In this case, the battery is designed in a narrow and high shape, with a relatively high center of gravity, which is not conducive to the overall stability of the forklift. Therefore, a lithium battery architecture for a forklift is needed to rearrange the position of the battery. Summary of the Utility Model

[0003] In order to solve the problems existing in the above-mentioned prior art, a lithium battery architecture for a forklift is proposed.

[0004] The technical solution of the utility model for solving the technical problem is as follows: A lithium battery architecture for a forklift includes a chassis, side plates are symmetrically connected to both sides of the chassis, a hydraulic oil tank is fixedly connected to one side plate, the outlet of the hydraulic oil tank is communicated with a gear pump, the gear pump is connected to an oil pump motor, the front end of the frame is connected to a first fixing plate, and the oil pump motor is fixedly connected to the first fixing plate; between the two side plates at the front end of the oil pump motor, a second fixing plate is connected, a gearbox is fixedly connected to the second fixing plate, the input end of the gearbox is connected to a traction motor, and the output end of the gearbox is connected to a drive axle; a battery is connected to the chassis at the rear of the gearbox, a controller is installed on the top of the battery, and the battery drives the traction motor and the oil pump motor.

[0005] Preferably, a collision-proof cross beam is connected between the two side plates at the front end of the traction motor, and a multi-way valve operating member is connected to the cross beam.

[0006] Preferably, a balance counterweight for balancing the front and rear weights when lifting heavy objects is connected to the rear end of the chassis.

[0007] Preferably, the hydraulic oil tank is integrally manufactured with the side plate, and the outlet of the hydraulic oil tank and the input port of the gear pump are on the same horizontal line.

[0008] Preferably, the traction motor and the drive axle are arranged in parallel.

[0009] Preferably, the battery is located under the forklift seat, and both ends of the battery are closely attached to the side plate and the hydraulic oil tank.

[0010] Compared with the prior art, the above technical solution has the following advantages or beneficial effects:

[0011] 1. The hydraulic oil tank of the present utility model is integrally designed with the side plate, and the traction motor and the oil pump motor are placed at the front end, increasing the battery placement space, reducing the battery height and center, which is beneficial to the stability of the whole machine.

[0012] 2. The outlet of the hydraulic oil tank of the present utility model and the input port of the gear pump are on the same horizontal line, shortening the hydraulic pipeline, reducing energy loss, and improving the lifting efficiency.

[0013] 3. The traction motor and the oil pump motor of the present utility model are both connected through a connecting plate, which is convenient for disassembly, and the controller is arranged above the battery and below the seat cover plate, which is convenient for maintenance and repair, and at the same time makes full use of the space. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings forming a part of this specification are used to provide a further understanding of the present utility model. The schematic embodiments and descriptions thereof of the present utility model are used to explain the present utility model and do not constitute an improper limitation to the present utility model.

[0015] Figure 1 is a top view of the present utility model.

[0016] Figure 2 is a perspective view of the present utility model.

[0017] DESCRIPTION OF THE REFERENCE NUMERALS:

[0018] 1, chassis; 2, side plate; 3, hydraulic oil tank; 4, battery; 5, controller; 6, counterweight; 7, gear pump; 8, oil pump motor; 9, first fixing plate; 10, second fixing plate; 11, gearbox; 12, traction motor; 13, drive axle; 14, anti-collision cross beam; 15, multi-way valve control part. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] To clearly illustrate the technical features of this solution, the following will elaborate on the present utility model in detail through specific embodiments and in conjunction with its accompanying drawings. The following disclosure provides many different embodiments or examples for implementing different structures of the present utility model. To simplify the disclosure of the present utility model, the components and settings of specific examples are described below. In addition, the present utility model may repeat reference numerals and / or letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. It should be noted that the components illustrated in the drawings are not necessarily drawn to scale. The present utility model omits the description of well-known components and processing techniques and processes to avoid unnecessarily limiting the present utility model. The terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing 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 thus cannot be construed as a limitation on the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", "connected" 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 directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0020] Referring to Figure 1 - Figure 2 , this embodiment proposes a lithium battery forklift architecture, including a chassis 1, characterized in that: side plates 2 are symmetrically connected to both sides of the chassis 1, a hydraulic oil tank 3 is fixedly connected to one side plate 2, the outlet of the hydraulic oil tank 3 communicates with a gear pump 7, the gear pump 7 is connected to an oil pump motor 8, the front end of the vehicle frame is connected to a first fixing plate 9, and the oil pump motor 8 is fixedly connected to the first fixing plate 9; a second fixing plate 10 is connected between the two side plates 2 at the front end of the oil pump motor 8, a gearbox 11 is fixedly connected to the second fixing plate 10, the input end of the gearbox 11 is connected to a traction motor 12, and the output end of the gearbox 11 is connected to a drive axle 13; a battery 4 is connected to the chassis 1 at the rear end of the gearbox 11, a controller 5 is installed on the top of the battery 4, and the battery 4 drives the traction motor 12 and the oil pump motor 8.

[0021] Anti-collision crossbeams 14 are connected between the two side plates 2 at the front end of the traction motor 12, and multiple-valve operating parts 15 are connected to the crossbeams. A balance counterweight block 6 for balancing the front and rear weights when lifting heavy objects is connected to the rear end of the chassis 1. The hydraulic oil tank 3 is integrally manufactured with the side plate 2, and the outlet of the hydraulic oil tank 3 and the inlet of the gear pump 7 are on the same horizontal line. The traction motor 12 is arranged in parallel with the drive axle 13. The battery 4 is located under the forklift seat, and both ends of the battery 4 are closely attached to the side plate 2 and the hydraulic oil tank 3.

[0022] The lithium-ion architecture forklift is based on a deep understanding of electric forklifts and internal combustion forklifts, breaking through the traditional design concept, and has been greatly improved in terms of stability, reliability, maintainability, etc.

[0023] (1) The hydraulic oil tank 3 is integrally designed with the vehicle body and is located on one side of the vehicle body. The other side is a ribbed plate structure (not a box structure), which increases the internal space of the vehicle body, facilitates increasing the width of the battery 4, reducing the height of the battery 4 and the overall center of gravity of the machine. At the same time, a crossbeam structure is added in the middle to enhance the strength of the vehicle body and ensure the bearing capacity.

[0024] (2) The parallel bridge arrangement is adopted, and the traction motor 12 is located under the footrest, saving the overall space of the machine and facilitating the arrangement of the battery 4 at the tail and sinking it to the bottom of the vehicle body;

[0025] (3) The oil pump motor 8 is located between the traction motor 12 and the battery 4, close to the hydraulic oil tank 3, shortening the hydraulic pipeline, reducing energy loss and improving efficiency.

[0026] (4) The controller 5 with heat dissipation function is arranged above the battery 4 and below the seat cover plate, which is convenient for maintenance and repair, and makes full use of the space at the same time.

[0027] Although the specific implementation manners of the utility model are described above in conjunction with the drawings, it is not a limitation to the protection scope of the utility model. Based on the technical solutions of the utility model, various modifications or deformations that can be made by those skilled in the art without creative labor are still within the protection scope of the utility model.

Claims

1. A lithium battery architecture for a forklift, comprising a chassis (1), characterized in that: On both sides of the chassis (1), side plates (2) are symmetrically connected. A hydraulic oil tank (3) is fixedly connected to one of the side plates (2). The outlet of the hydraulic oil tank (3) is connected to a gear pump (7), and the gear pump (7) is connected to an oil pump motor (8). The front end of the vehicle frame is connected to a first fixing plate (9), and the oil pump motor (8) is fixedly connected to the first fixing plate (9); between the two side plates (2) at the front end of the oil pump motor (8), a second fixing plate (10) is connected. A gearbox (11) is fixedly connected to the second fixing plate (10). The input end of the gearbox (11) is connected to a traction motor (12), and the output end of the gearbox (11) is connected to a drive axle (13); a battery (4) is connected to the chassis (1) at the rear end of the gearbox (11), and the battery (4) drives the traction motor (12) and the oil pump motor (8).

2. The forklift lithium battery architecture according to claim 1, wherein: A collision avoidance cross beam (14) is connected between the two side plates (2) at the front end of the traction motor (12), and a multi-way valve operating member (15) is connected to the cross beam.

3. A lithium battery forklift architecture according to claim 1, characterized in that: The rear end of the chassis (1) is connected to a balance counterweight block (6) for balancing the front and rear weights when lifting heavy objects.

4. A lithium battery forklift architecture according to claim 1, characterized in that: The hydraulic oil tank (3) is integrally manufactured with the side plate (2), and the outlet of the hydraulic oil tank (3) and the inlet of the gear pump (7) are on the same horizontal line.

5. A lithium battery forklift architecture according to claim 1, characterized in that: The traction motor (12) is arranged parallel to the drive axle (13).

6. A lithium battery forklift architecture according to claim 1, wherein: The battery (4) is located under the forklift seat, and both ends of the battery (4) are closely attached to the side plate (2) and the hydraulic oil tank (3).

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