Forklift hydraulic oil tank arrangement system

Abstract

The utility model discloses a forklift hydraulic oil tank arrangement system which comprises a forklift cab and further comprises a hydraulic oil tank, the hydraulic oil tank is arranged below the forklift cab, a partition plate is detachably arranged in the hydraulic oil tank, and the portion, in the hydraulic oil tank, of the partition plate is divided into an oil suction channel and an oil return channel. The shielding mechanism is arranged on the rear portion of the hydraulic oil tank and used for preventing muddy water and dirt from entering a gap between the oil tank and a cab, and the oil suction and return integrated oil filter is detachably arranged in the hydraulic oil tank. According to the arrangement system for the hydraulic oil tank of the forklift, the aspects of space utilization, heat dissipation performance and maintenance convenience are remarkably improved, meanwhile, the protection capacity is high, the overall working efficiency and reliability of the forklift can be effectively improved, and the arrangement system is suitable for being applied to high-performance forklifts under various working conditions.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical engineering, and particularly relates to a hydraulic oil tank layout system for a forklift. Background Art

[0002] In the hydraulic system of industrial vehicles such as forklifts, the design and layout of the hydraulic oil tank are crucial for ensuring the normal operation of the hydraulic system. The hydraulic oil tank is not only used to store hydraulic oil, but also plays a role in cooling and filtering the hydraulic oil. With the continuous development of forklift design, especially the increasing demand for high-performance and compact forklifts, the layout form of the hydraulic oil tank faces many challenges. In the case of limited space, conventional oil tank designs often cannot simultaneously meet the volume requirements of the equipment, heat dissipation needs, and maintenance convenience.

[0003] The hydraulic oil tanks in the prior art usually have the following problems: insufficient space utilization, the height and size of the forklift chassis and cab are limited, and traditional oil tank designs often cannot provide sufficient hydraulic oil capacity in the limited space, while also ensuring installation stability and convenience; insufficient heat dissipation performance, when the hydraulic system is working, the temperature of the hydraulic oil will gradually rise. If the heat dissipation performance of the oil tank is insufficient, it is easy to cause the system to overheat, affecting the operating efficiency of the equipment and the service life of hydraulic components; inconvenient maintenance, the layout of the traditional hydraulic oil tank at positions such as the oil filter and drain plug is unreasonable, resulting in difficult operation during equipment maintenance and repair, increasing the maintenance cost and time. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a hydraulic oil tank layout system for a forklift to solve the problems existing in the prior art.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A hydraulic oil tank layout system for a forklift, including a forklift cab, and the system further includes:

[0006] A hydraulic oil tank, which is arranged below the forklift cab. A partition is detachably arranged inside the hydraulic oil tank, and the partition divides an oil suction channel and an oil return channel inside the hydraulic oil tank.

[0007] A shielding mechanism, which is arranged at the rear of the hydraulic oil tank, and the shielding mechanism is used to prevent mud and dirt from entering the gap between the oil tank and the cab.

[0008] An integrated oil suction and return filter, which is detachably arranged inside the hydraulic oil tank.

[0009] Preferably, the shielding mechanism includes a rear sealing plate, and the rear sealing plate is installed at the rear of the hydraulic oil tank.

[0010] Preferably, the hydraulic oil tank is welded by an outer side plate, an inner side plate, an upper plate, a bottom plate, a sealing plate, a front reinforcing plate and a rear reinforcing plate.

[0011] Preferably, the height of the partition is three-fourths of the height of the hydraulic oil tank.

[0012] Preferably, the bottom plate of the hydraulic oil tank is designed as an inclined surface structure, and an oil drain plug is arranged at the bottom of the bottom plate near the outer side plate.

[0013] Preferably, the suction and return oil integrated filter includes a cylinder body with an observation mirror.

[0014] Preferably, the suction and return oil integrated filter is installed inside the hydraulic oil tank through a flange cover.

[0015] Preferably, the rear sealing plate is bent from a millimeter steel plate, and the outer flanging is used to block the pipeline between the hydraulic oil tank and the forklift cab, and is integrally installed between the rear support of the forklift cab and the hydraulic oil tank.

[0016] Preferably, an upper oil filling pipe and a lower oil filling pipe are arranged on the hydraulic oil tank, and the upper oil filling pipe and the lower oil filling pipe are designed to be connected to each other through threaded holes.

[0017] As can be seen from the above technical solutions, the utility model has the following beneficial effects:

[0018] The forklift hydraulic oil tank layout system arranges the hydraulic oil tank under the forklift cab and separates the oil suction channel and the oil return channel through a partition, making the internal structure of the hydraulic oil tank more compact, fully utilizing the limited space, and ensuring the installation stability of the hydraulic oil tank. In addition, a partition design with a height of three-quarters of the hydraulic oil tank effectively improves the fluidity and filtration efficiency of the hydraulic oil, optimizes the utilization of the internal space of the oil tank. The hydraulic oil tank is designed with a bottom plate having an inclined surface structure, and an oil drain plug is provided near the outer side plate at the bottom, ensuring uniform distribution of the oil flow inside the hydraulic oil tank, avoiding excessive local oil temperature. This structure not only improves the heat dissipation effect of the oil tank but also facilitates the discharge of hydraulic oil, reducing the risk of system overheating. The suction and return oil integrated filter is equipped with an observation mirror design, which is convenient for operators to monitor the state of the hydraulic oil in real time and avoid oil contamination during the operation of the hydraulic system. At the same time, the filter is of a detachable design, and maintenance personnel can easily replace the filter element, significantly reducing the maintenance workload and downtime. The use of the flange cover further improves the installation convenience and sealing performance, ensuring the maintenance efficiency of the system. The shielding mechanism arranged at the rear of the hydraulic oil tank, especially the rear sealing plate structure, effectively prevents impurities such as mud and dust from entering the gap between the oil tank and the cab, reducing the pollution of the external environment to the hydraulic system and extending the service life of the system. The upper and lower fuel pipes equipped on the hydraulic oil tank are connected to each other through threaded holes, making the refueling operation more flexible, adapting to different working environments and requirements, ensuring that the system can be conveniently refueled or the hydraulic oil can be replaced at any time, and avoiding cumbersome operation steps. Therefore, the forklift hydraulic oil tank layout system of the present invention not only significantly improves in terms of space utilization, heat dissipation performance and maintenance convenience, but also has strong protection ability, can effectively improve the overall working efficiency and reliability of the forklift, and is applicable to high-performance forklifts under various working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of the distribution of the hydraulic oil tank of the present utility model;

[0020] Figure 2 is a schematic diagram of a certain angle of the hydraulic oil tank of the present utility model;

[0021] Figure 3 is a schematic diagram of another angle of the hydraulic oil tank of the present utility model;

[0022] Figure 4 is a schematic diagram of another angle of the hydraulic oil tank of the present utility model;

[0023] Figure 5 is a schematic diagram of the internal structure of the hydraulic oil tank of the present utility model;

[0024] Figure 6 is a schematic diagram of the structure of the suction and return oil integrated filter of the present utility model.

[0025] In the figure: 1. Forklift cab; 2. Hydraulic oil tank; 21. Outer plate; 22. Inner side plate; 23. Upper plate; 24. Bottom plate; 25. Sealing plate; 26. Front reinforcing plate; 27. Rear reinforcing plate; 3. Partition board; 4. Shielding mechanism; 41. Rear sealing plate; 5. Integrated suction and return oil filter; 51. Observation mirror; 52. Cylinder body; 6. Flange cover; 7. Upper oil filling pipe; 8. Lower oil filling pipe. Detailed implementation manners

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] As Figures 1-6 shown, a forklift hydraulic oil tank arrangement system includes a forklift cab 1 and a hydraulic oil tank 2, and the hydraulic oil tank 2 is arranged below the forklift cab 1. A partition board 3 is detachably arranged inside the hydraulic oil tank 2, and the partition board 3 divides an oil suction channel and an oil return channel inside the hydraulic oil tank 2. The system further includes a shielding mechanism 4, which is arranged at the rear part of the hydraulic oil tank 2 and can effectively prevent mud and dirt from entering the gap between the oil tank and the cab. In addition, a detachable integrated suction and return oil filter 5 is installed inside the hydraulic oil tank 2.

[0028] By arranging the hydraulic oil tank 2 below the cab 1, the forklift hydraulic oil tank arrangement system reasonably utilizes the space layout of the forklift, improving the compactness and stability of the equipment. The partition board 3 divides the oil suction and oil return channels, effectively avoiding the influence on the oil quality during the reflux of the hydraulic oil and improving the working efficiency of the hydraulic system. The shielding mechanism 4 effectively prevents foreign impurities from entering, reducing the possibility of the hydraulic system being contaminated. The integrated suction and return oil filter 5 integrates the functions of oil suction and oil return filtration, which can improve the cleanliness of the hydraulic oil, thereby extending the service life of the system. This system can reasonably optimize the space layout of the forklift, improve the overall working efficiency of the hydraulic system, and at the same time ensure the cleanliness of the hydraulic oil through the design of the partition board and the filter, reducing the equipment maintenance frequency. In addition, the shielding mechanism effectively prevents mud and dirt from entering, contributing to extending the service life of the hydraulic oil tank.

[0029] In other implementation manners, the position of the hydraulic oil tank 2 can be appropriately adjusted according to the different structures of the forklift, for example, it can be installed at the rear or side of the vehicle. Parameters such as the height and shape of the partition board 3 can also be changed according to the actual size of the hydraulic oil tank 2. The specific structure and filtration accuracy of the integrated suction and return oil filter 5 can be replaced with other types of filters according to the actual application scenarios.

[0030] The shielding mechanism 4 includes a rear sealing plate 41 which is installed at the rear of the hydraulic oil tank 2. The rear sealing plate 41 is arranged at the rear of the hydraulic oil tank 2. Through an effective physical barrier, the rear sealing plate 41 can prevent dirt such as mud and dust from entering the gap between the cab and the hydraulic oil tank, thereby protecting the hydraulic oil tank, reducing the impact of external pollution on the hydraulic system. By setting the rear sealing plate 41, the protection of the hydraulic oil tank is further enhanced, the service life of the hydraulic system can be effectively extended, the maintenance cost is reduced, and the normal operation of the forklift is ensured. The installation design of the rear sealing plate 41 makes the installation and disassembly simple, providing convenience for the maintenance and repair of the forklift.

[0031] The rear sealing plate 41 can be made of different materials according to actual needs, such as corrosion-resistant materials like aluminum alloy and stainless steel, and the height and shape of the sealing plate can also be adjusted according to the specific conditions of mud and dirt. The installation method can also be adjusted according to the structure of the specific forklift, such as using different fixing methods like screws or welding.

[0032] The forklift hydraulic oil tank 2 is formed by welding the outer side plate 21, the inner side plate 22, the upper plate 23, the bottom plate 24, the sealing plate 25, the front reinforcement plate 26 and the rear reinforcement plate 27. The overall structure of the hydraulic oil tank 2 is combined by welding, ensuring the firmness and sealing of the oil tank. The reinforcement plates 26 and 27 are respectively installed at the front and rear parts of the oil tank to enhance the strength and durability of the oil tank, preventing the oil tank from deforming or being damaged due to vibrations or pressures during the operation of the forklift. This welded structure design makes the hydraulic oil tank 2 have high structural stability and sealing, capable of withstanding the pressure and vibration generated during the operation of the hydraulic system, and at the same time extending the service life of the oil tank. The application of the reinforcement plates effectively improves the impact resistance and pressure resistance of the oil tank, further ensuring the stable operation of the forklift.

[0033] The plate thickness and welding method of the hydraulic oil tank 2 can be adjusted according to the usage requirements, such as using lighter but stronger materials, or replacing welding with other connection methods (such as bolt connection). In addition, according to different usage conditions, the shapes and sizes of components such as the outer side plate 21 and the inner side plate 22 can also be appropriately adjusted to meet the needs of different types of forklifts.

[0034] The height of the partition plate 3 is three - quarters of the height of the hydraulic oil tank 2. The partition plate 3 is arranged inside the hydraulic oil tank 2, dividing the hydraulic oil tank into a suction oil channel and a return oil channel. The height of the partition plate 3 being three - quarters of the total height of the hydraulic oil tank 2 ensures effective separation of the hydraulic oil during return, while ensuring smooth oil flow, without excessive oil agitation, thus reducing the risk of bubbles and contaminants mixing into the oil. The height design of the partition plate 3 effectively optimizes the oil flow channel, avoiding interference and pollution during oil flow. At the same time, the three - quarters height design provides sufficient oil separation space, ensuring the efficiency and stability of oil suction and return in the hydraulic system, reducing oil pollution in the system and improving the reliability and lifespan of the hydraulic system.

[0035] The height of the partition plate 3 can be adjusted according to the specific requirements of the hydraulic system. For example, it can be designed with a higher or lower ratio to adapt to different tank capacities or system pressure requirements. At the same time, the shape and installation method of the partition plate can also be changed, such as using an adjustable or movable partition plate structure to adapt to the oil flow requirements under different working conditions.

[0036] The bottom plate 24 of the hydraulic oil tank 2 is designed as an inclined - plane structure, and an oil drain plug is provided near the outer side plate 21 at the bottom. The design of the bottom plate 24 of the hydraulic oil tank 2 as an inclined - plane structure enables the oil in the tank to flow naturally to the position of the oil drain plug at the bottom, facilitating the rapid and complete drainage of the residual oil in the tank when the oil needs to be replaced or cleaned. The oil drain plug is set at the lowest point of the bottom plate 24 near the outer side plate 21 to ensure that the oil can be completely discharged, reducing the impact of the residual liquid on the hydraulic system. By adopting the inclined - plane bottom - plate structure, complete oil discharge can be achieved, avoiding the pollution problem caused by oil remaining in the tank and improving the efficiency of tank cleaning and maintenance. At the same time, the reasonable layout of the oil drain plug makes oil discharge faster and more convenient, reducing the maintenance workload and time and improving the working efficiency of the system.

[0037] The inclination angle of the inclined - plane bottom plate can be adjusted according to the size of the tank and the oil - drainage requirements, and the position of the oil drain plug can also be moved or redesigned according to the structural characteristics and operation convenience of the forklift. For example, the oil drain plug can be set at different corners of the tank, or designed as a quick - disassembly or filter - equipped plug to further optimize the maintenance operation.

[0038] The integrated suction and return oil filter 5 includes a cylinder body 52 with an observation mirror 51. The cylinder body 52 of the integrated suction and return oil filter 5 is designed with an observation mirror 51, through which the operator can view the working state of the filter and the cleanliness of the internal oil in real time. Through the design of the observation mirror, maintenance personnel can understand the operating state of the filter without disassembling the filter and decide whether it is necessary to clean or replace the filter element. The integrated suction and return oil filter with an observation mirror greatly simplifies the maintenance process of the hydraulic system, enabling the state of the oil and the filter element to be visually inspected, reducing unnecessary disassembly operations, and improving maintenance efficiency. In addition, the design of the observation mirror can also prevent system failures caused by filter element blockage or oil contamination, ensuring the continuous and stable operation of the hydraulic system.

[0039] The shape, size, and installation position of the observation mirror 51 can be adjusted according to the specific system requirements. The material of the filter cylinder body 52 can also be selected as a transparent or semi-transparent material to provide a more intuitive oil detection effect. In addition, the observation mirror can be designed with an illumination function or an alarm prompt function to improve the monitoring ability of the system.

[0040] The integrated suction and return oil filter 5 is installed inside the hydraulic oil tank 2 through a flange cover 6. The integrated suction and return oil filter 5 is fixedly connected to the hydraulic oil tank 2 through the flange cover 6. The flange cover 6 provides a stable installation method and at the same time ensures the detachable nature of the filter. The design of the flange cover 6 makes the installation and disassembly of the filter more convenient, facilitating quick operation when the filter element needs to be replaced or cleaned. The application of the flange cover 8 provides a firm and convenient filter installation method, ensuring the stability of the filter during system operation and reducing the installation and maintenance difficulty of the filter. The detachable nature of the filter improves the maintenance efficiency of the system, facilitates the replacement and cleaning operations of the filter element, and helps to ensure the normal operation of the hydraulic system.

[0041] The material and size of the flange cover 6 can be adjusted according to the actual requirements of the oil tank and the filter, and the installation method can also be changed to a threaded connection or other quick disassembly and assembly methods to further improve the convenience of maintenance and the flexibility of the system.

[0042] The rear seal plate 41 is bent from a 2-mm steel plate. The outer flanging is used to shield the pipelines between the hydraulic oil tank 2 and the forklift cab 1, and it is integrally installed between the rear support of the forklift cab 1 and the hydraulic oil tank 2. The rear seal plate 41 is formed by bending a steel plate with a thickness of 2 mm. Its outer flanging is designed to effectively shield the pipelines between the hydraulic oil tank 2 and the forklift cab 1, preventing mud, dust, etc. from entering the gap between the pipelines and the oil tank. In addition, through the integral installation with the rear support of the forklift cab 1 and the hydraulic oil tank 2, the rear seal plate 41 forms a stable protection barrier. The thickness and bending design of the rear seal plate 41 provide strong anti-impact and protection capabilities, effectively avoiding the intrusion of external pollutants into the hydraulic system. At the same time, the application of the outer flanging provides additional protection for the pipelines of the hydraulic system, reducing the damage of external substances to the pipelines and improving the reliability and durability of the forklift system.

[0043] The material of the rear seal plate 41 can be adjusted according to the use environment. For example, lightweight or corrosion-resistant materials such as stainless steel and aluminum alloy can be used. The size and shape of the flanging can also be adjusted according to the layout of different pipelines to adapt to different forklift models and pipeline structures. In addition, the installation method of the rear seal plate can be changed to a modular design, which is convenient for quick disassembly and assembly during maintenance or replacement.

[0044] An upper fuel filling pipe 7 and a lower fuel filling pipe 8 are provided on the hydraulic oil tank 2. The upper fuel filling pipe 7 and the lower fuel filling pipe 8 are designed to be connected to each other through threaded holes. The upper fuel filling pipe 7 and the lower fuel filling pipe 8 are connected to each other through threaded holes to form a fuel filling channel for the hydraulic oil tank 2. This design makes the fuel filling operation more convenient. Fuel can be filled through the upper fuel filling pipe 7 or the lower fuel filling pipe 8 according to actual usage requirements, adapting to the habits and operating environments of different operators. The upper fuel filling pipe 7 and the lower fuel filling pipe 8 connected through threaded holes make the installation and maintenance of the fuel filling pipes more simple, reducing the possibility of oil spillage during the fuel filling process and improving the safety and convenience of the operation. At the same time, this connection method ensures the sealing of the fuel tank, preventing oil leakage and ensuring the normal operation of the hydraulic system.

[0045] The connection method of the upper fuel filling pipe 7 and the lower fuel filling pipe 8 can be changed to a quick connector or a snap connection to further simplify the operation. In addition, the material of the fuel filling pipe can also be selected according to actual needs from different pressure-resistant or corrosion-resistant materials to improve the applicability and durability of the system.

[0046] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A forklift hydraulic oil tank arrangement system, comprising a forklift cab (1), characterized in that, The system further includes: a hydraulic oil tank (2), which is arranged below the forklift cab (1). A partition plate (3) is detachably arranged inside the hydraulic oil tank (2), and the partition plate (3) divides an oil suction channel and an oil return channel inside the hydraulic oil tank (2); a shielding mechanism (4), which is arranged at the rear of the hydraulic oil tank (2), and the shielding mechanism (4) is used to prevent mud and dirt from entering the gap between the oil tank and the cab; an integrated oil suction and return filter (5), which is detachably arranged inside the hydraulic oil tank (2).

2. The forklift hydraulic oil tank layout system according to claim 1, wherein: The shielding mechanism (4) includes a rear sealing plate (41), and the rear sealing plate (41) is installed at the rear of the hydraulic oil tank (2).

3. The forklift hydraulic oil tank layout system according to claim 1, characterized in that: The hydraulic oil tank (2) is welded by an outer side plate (21), an inner side plate (22), an upper plate (23), a bottom plate (24), a sealing plate (25), a front reinforcing plate (26) and a rear reinforcing plate (27).

4. A forklift hydraulic oil tank layout system according to claim 1, characterized in that: The height of the partition plate (3) is three-quarters of the height of the hydraulic oil tank (2).

5. A forklift hydraulic oil tank layout system according to claim 1, characterized in that: The bottom plate (24) of the hydraulic oil tank (2) is designed as an inclined surface structure, and an oil drain plug is arranged at the bottom of the bottom plate (24) near the outer side plate (21).

6. The forklift hydraulic oil tank layout system according to claim 1, wherein: The integrated oil suction and return filter (5) includes a cylinder body (52) with an observation mirror (51).

7. A forklift hydraulic oil tank arrangement system according to claim 1, characterized in that: The integrated oil suction and return filter (5) is installed inside the hydraulic oil tank (2) through a flange cover (6).

8. A forklift hydraulic oil tank layout system according to claim 2, characterized in that: The rear sealing plate (41) is bent from a 2-mm steel plate, and the outer flanging is used to shield the pipeline between the hydraulic oil tank (2) and the forklift cab (1), and is integrally installed between the rear support of the forklift cab (1) and the hydraulic oil tank (2).

9. A forklift hydraulic oil tank layout system according to claim 1, characterized in that: An upper fuel filling pipe (7) and a lower fuel filling pipe (8) are arranged on the hydraulic oil tank (2), and the upper fuel filling pipe (7) and the lower fuel filling pipe (8) are designed to be connected to each other through threaded holes.

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