Hydraulic oil tank and aerial vehicle

Abstract

The utility model discloses a hydraulic oil tank and a high-altitude vehicle, and belongs to the technical field of hydraulic oil tanks. The hydraulic oil tank comprises an oil tank shell, an oil return chamber, an oil suction chamber and a first oil return pipe. The oil return chamber comprises a first oil return chamber, a second oil return chamber located below the first oil return chamber and a third oil return chamber located on the left side of the first oil return chamber and the second oil return chamber, and the oil suction chamber is located on the left side of the third oil return chamber; a first partition plate, a second partition plate and a third partition plate are arranged in the oil tank shell and provided with through holes. The first oil return pipe communicates with the exterior of the shell and the interior of the third oil return chamber, and a pipe body of the first oil return pipe penetrates through the oil suction chamber. According to the hydraulic oil tank, the independent first oil return chamber is isolated in the oil return chamber through the partition plate, when hydraulic oil returns, the sealed first oil return chamber can effectively reduce the impact of large-pressure return oil on the interior of the oil tank, the hydraulic oil in the oil tank flows smoothly, and bubbles generated in the oil return process are reduced.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic oil tank technology, specifically a hydraulic oil tank and an aerial work platform. Background Technology

[0002] A hydraulic oil tank is a container specifically designed to store the hydraulic fluid required by the hydraulic system, and it is an indispensable component of an aerial work platform. The functions of a hydraulic oil tank include storing oil, balancing pressure, dissipating heat, settling impurities, and managing oil cleanliness.

[0003] Existing hydraulic oil tanks can cause air bubbles to form in the hydraulic oil during the return process. For example, if the return oil pipe is higher than the oil level in the tank, air will be entrained into the tank during the hydraulic system's return flow, resulting in air bubbles. If these air bubbles enter the hydraulic system, they not only increase the volume of the hydraulic oil, reducing the system's efficiency, but also cause vibration and noise. Furthermore, air bubbles can concentrate frictional heat in the hydraulic system, causing the hydraulic oil temperature to rise. Excessively high temperatures can reduce the viscosity of the hydraulic oil, affecting the system's operational accuracy and control stability, and even leading to malfunctions and damage to the hydraulic system, thus preventing the aerial work platform from operating normally.

[0004] At the same time, when the hydraulic oil returns, it impacts the inside of the oil tank, causing the hydraulic oil inside the tank to shake. This not only generates more air bubbles, but also stirs up the residue in the hydraulic oil, affecting the sedimentation and treatment of the residue.

[0005] Therefore, it is necessary to propose a hydraulic oil tank and an aerial work platform to solve the above-mentioned technical problems existing in the prior art. Utility Model Content

[0006] The purpose of this utility model is to provide a hydraulic oil tank and an aerial work platform to solve the problem that existing hydraulic oil tanks are prone to generating air bubbles and residues during oil return, which are difficult to handle.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A hydraulic oil tank includes an outer shell, a return oil chamber, a suction oil chamber, and a first return oil pipe;

[0009] The oil return chamber includes a first oil return chamber, a second oil return chamber located below the first oil return chamber, and a third oil return chamber located to the left of the first and second oil return chambers;

[0010] The oil suction chamber is located to the left of the third oil return chamber;

[0011] The interior of the oil tank shell is provided with a first partition separating the first oil return chamber from the second oil return chamber, a second partition separating the third oil return chamber from the first oil return chamber and the second oil return chamber, and a third partition separating the third oil return chamber from the oil suction chamber.

[0012] The first partition plate has a first through hole connecting the first oil return chamber and the second oil return chamber, and a built-in oil return filter is provided on the first through hole;

[0013] The second partition plate has several second through holes that connect the second oil return chamber and the third oil return chamber;

[0014] The third partition plate has several third through holes that connect the third oil return chamber and the oil suction chamber;

[0015] The first return oil pipe connects the outside of the outer casing and the inside of the third return oil chamber, and the pipe body of the first return oil pipe passes through the suction chamber.

[0016] Preferably, a first oil return nozzle is provided on the top of the first oil return chamber, a second oil return nozzle is provided on the side wall of the second oil return chamber, and a third oil return nozzle is provided on the side wall of the third oil return chamber.

[0017] Oil return filters are installed on the first, second, and third oil return nozzles.

[0018] Preferably, a return oil straight pipe is provided at the top of the third return oil chamber, and a return oil filter is provided on the return oil straight pipe.

[0019] Preferably, it also includes a fourth partition;

[0020] The fourth partition is disposed inside the oil suction chamber, and the fourth partition divides the oil suction chamber into a first oil suction chamber and a second oil suction chamber.

[0021] The fourth partition plate has several fourth through holes that connect the first oil suction chamber and the second oil suction chamber.

[0022] Preferably, a first oil suction nozzle is provided on the top of the first oil suction chamber, a second oil suction nozzle is provided on the top of the second oil suction chamber, and a third oil suction nozzle is provided on the outer wall of the first oil suction chamber;

[0023] Oil suction filters are provided on the first, second, and third oil suction nozzles.

[0024] Preferably, it also includes an oil suction connector;

[0025] The oil suction connector is located on the outer wall of the first oil suction chamber and is connected to the first oil suction chamber.

[0026] Preferably, it also includes a first connector and a second connector;

[0027] The first connector is disposed on the outer wall of the first oil suction chamber, and the first connector is connected to the first oil suction chamber;

[0028] The second connector is located on the outer wall of the second return oil chamber and is connected to the second return oil chamber.

[0029] Preferably, the first partition is a Z-shaped structure, and the second, third, and fourth partitions are rectangular in shape.

[0030] Preferably, it also includes a second return oil pipe, an oil drain cone pipe, and a level gauge;

[0031] The second return oil pipe connects the outside of the oil tank shell and the inside of the first return oil chamber, and the pipe body of the second return oil pipe passes through the third return oil chamber;

[0032] The drain cone is installed on the bottom plate of the oil tank shell and is connected to the third return oil chamber;

[0033] The level gauge is installed on the inner wall of the third return oil chamber.

[0034] An aerial work platform, wherein the aerial work platform is equipped with the aforementioned hydraulic oil tank.

[0035] Compared with the prior art, this utility model has the following advantages:

[0036] As described above, the hydraulic oil tank of this invention, when applied to an aerial work platform, utilizes several through holes in a partition to ensure smooth hydraulic oil flow while slowing down the flow rate, thus cooling and mitigating impact, and facilitating the release of air bubbles from the hydraulic oil. Simultaneously, the partition isolates a separate first return oil chamber within the return oil chamber. When hydraulic oil returns, the closed first return oil chamber effectively reduces the impact of high-pressure return oil on the tank's interior, resulting in smoother hydraulic oil flow and reduced air bubble generation during return. Furthermore, this invention also includes a partition with through holes in the suction chamber, dividing it into a first suction chamber and a second suction chamber, further promoting the release of air bubbles from the tank.

[0037] This invention also includes a first return oil pipe. The pipe body passes through the first and second suction chambers and connects to the third return oil chamber. This simplifies the design of the hydraulic component's return oil pipeline, making the pipeline route more concise and clear, and facilitating both installation and subsequent maintenance. Simultaneously, since the hydraulic oil temperature in the suction chamber is lower than the return oil temperature, the return oil can dissipate heat as it flows through the suction chamber, thus lowering the temperature of the hydraulic oil returning to the return chamber. Furthermore, the extended length of the return oil pipe effectively mitigates return oil impact and reduces the generation of air bubbles.

[0038] This invention features a first through hole in the first partition between the first and second return oil chambers, through which a built-in return oil filter is installed. The main valve returns oil separately to the first return oil chamber, and the hydraulic oil enters the second return oil chamber only after being filtered by the built-in return oil filter. This facilitates the filtration of the hydraulic oil during return and reduces residue in the hydraulic oil tank.

[0039] This utility model also includes multiple oil suction nozzles, oil return nozzles, and oil suction connectors on the hydraulic oil tank, ensuring the convenience of connecting the oil suction and oil return lines when the hydraulic components of the aerial work platform are located in different positions. Attached Figure Description

[0040] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0041] Figure 1 This is a front view of the hydraulic oil tank in the embodiment;

[0042] Figure 2 Schematic diagram of the internal structure of the hydraulic oil tank Figure 1 ;

[0043] Figure 3 This is a rear view of the hydraulic oil tank.

[0044] Figure 4 This is a top view of the hydraulic oil tank;

[0045] Figure 5 This is a bottom view of the hydraulic oil tank;

[0046] Figure 6 This is a left view of the hydraulic oil tank;

[0047] Figure 7 Schematic diagram of the internal structure of the hydraulic oil tank Figure 2 .

[0048] In the diagram: 1. First oil return chamber, 2. Second oil return chamber, 3. Third oil return chamber, 4. Outer shell, 5. First oil suction chamber, 6. Second oil suction chamber, 7. First partition, 8. Second partition, 9. Third partition, 10. Fourth partition, 11. First through hole, 12. Second through hole, 13. Third through hole, 14. Fourth through hole, 15. First oil return pipe, 16. First oil return nozzle, 17. Second oil return nozzle, 18. Third oil return nozzle, 19. Oil return straight pipe, 20. First connector, 21. Second connector, 22. Second oil return pipe, 23. First oil suction nozzle, 24. Second oil suction nozzle, 25. Third oil suction nozzle, 26. Oil suction connector, 27. Oil drain cone pipe, 28. Level gauge base, 29. Mounting components. Detailed Implementation

[0049] 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.

[0050] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0051] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0052] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0053] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0054] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0055] Example

[0056] like Figures 1 to 7 As shown in the figure, this embodiment describes a hydraulic oil tank, which includes an outer shell 4, a return oil chamber, a suction oil chamber, and a first return oil pipe 15.

[0057] The oil return chamber includes a first oil return chamber 1, a second oil return chamber 2 located below the first oil return chamber 1, and a third oil return chamber 3 located to the left of the first oil return chamber 1 and the second oil return chamber 2. The oil suction chamber is located to the left of the third oil return chamber 3.

[0058] The interior of the oil tank shell 4 is provided with a first partition 7 that separates the first oil return chamber 1 from the second oil return chamber 2, a second partition 8 that separates the third oil return chamber 3 from the first oil return chamber 1 and the second oil return chamber 2, and a third partition 9 that separates the third oil return chamber 3 from the oil suction chamber.

[0059] The first partition 7 has a first through hole 11 connecting the first oil return chamber 1 and the second oil return chamber 2, and a built-in oil return filter is provided on the first through hole 11; several second through holes 12 connecting the second oil return chamber 2 and the third oil return chamber 3 are provided below the second partition 8; several third through holes 13 connecting the third oil return chamber 3 and the oil suction chamber are provided on the third partition 9.

[0060] The first partition 7 consists of a Z-shaped bottom plate and an L-shaped side plate, with the L-shaped side plate connecting to the rear side of the Z-shaped bottom plate; the second partition 8 is rectangular in shape, and the third partition 9 is square in shape. The Z-shaped bottom plate of the first partition 7 is horizontally installed inside the fuel tank outer shell 4, while the second partition 8 and the third partition 9 are vertically installed inside the fuel tank outer shell 4.

[0061] The second partition 8 divides the internal space of the oil tank shell 4 into two spaces, left and right. The first partition 7 is horizontally arranged in the space on the right side of the second partition 8. The first partition 7 divides the space on the right side of the second partition 8 into the upper first oil return chamber 1 and the lower second oil return chamber 2.

[0062] A third partition 9 is vertically arranged in the space to the left of the second partition 8, which divides the space to the left of the second partition 8 into a third oil return chamber 3 and an oil suction chamber.

[0063] A fourth partition 10 is vertically installed in the oil suction chamber. The fourth partition 10 is square in shape and divides the oil suction chamber into a first oil suction chamber 5 and a second oil suction chamber 6. Several fourth through holes 14 are opened on the fourth partition 10, which connect the first oil suction chamber 5 and the second oil suction chamber 6, which is conducive to the precipitation of air bubbles in the hydraulic oil.

[0064] The first return oil pipe 15 connects the outside of the outer casing 4 and the inside of the third return oil chamber 3, and the pipe body of the first return oil pipe 15 passes through the first suction chamber 5 and the second suction chamber 6.

[0065] There are 8 first return oil pipes 15, of which the oil inlets of 7 first return oil pipes 15 are located on the left side wall of the first oil suction chamber 5, and the oil inlet of the remaining 1 first return oil pipe 15 is located at the top of the first oil suction chamber 5.

[0066] A first return oil nozzle 16 is provided at the top of the first return oil chamber 1, connecting to the first return oil chamber 1. A second return oil nozzle 17 is provided on the rear side wall of the second return oil chamber 2, connecting to the second return oil chamber 2. A third return oil nozzle 18 is provided on the rear side wall of the third return oil chamber 3, connecting to the third return oil chamber 3. All three return oil nozzles 16, 17, and 18 are equipped with return oil filters via flanges. A straight return oil pipe 19 is also provided at the top of the third return oil chamber 3, connecting to the third return oil chamber 3, and a return oil filter is installed on the straight return oil pipe 19.

[0067] In this embodiment, the hydraulic oil tank is further provided with a first connector 20, a second connector 21, and a second return oil pipe 22. The first connector 20 is located at the bottom outer side of the first oil suction chamber 5 and is connected to the first oil suction chamber 5. The second connector 21 is located on the outer wall of the second oil return chamber 2 and is connected to the second oil return chamber 2. The oil inlet of the second return oil pipe 22 is located on the outer wall of the third oil return chamber 3, and the pipe body of the second return oil pipe 22 passes through the third oil return chamber 3, connecting the outside of the oil tank shell 4 and the inside of the first oil return chamber 1.

[0068] A first oil suction nozzle 23 is provided at the top of the first oil suction chamber 5, and a second oil suction nozzle 24 is provided at the top of the second oil suction chamber 6, connecting to the second oil suction chamber 6. A third oil suction nozzle 25 is provided on the front side wall of the first oil suction chamber 5, connecting to the first oil suction chamber 5. An oil suction filter is installed on the first oil suction nozzle 23, the second oil suction nozzle 24 and the third oil suction nozzle 25 through a flange.

[0069] Multiple oil suction connectors 26 are also provided on the front side wall of the first oil suction chamber 5, and the oil suction connectors 26 are connected to the first oil suction chamber 5.

[0070] An oil drain cone 27 is provided at the bottom of the third oil return chamber 3, and the oil drain cone 27 is connected to the third oil return chamber 3.

[0071] A level gauge base 28 is provided on the inner left side of the third oil return chamber 3, and a level gauge is installed on the level gauge base 28.

[0072] Multiple mounting parts 29 are provided around the outer perimeter of the oil tank shell 4. The mounting parts 29 are used to install the hydraulic oil tank on the aerial work platform.

[0073] In this embodiment, the first return oil pipe 15 and the second return oil pipe 22 are steel pipes.

[0074] An aerial work platform is provided, wherein the hydraulic oil tank described in this embodiment is installed on the aerial work platform.

[0075] In this embodiment, a hydraulic oil tank is applied to an aerial work platform. Several through holes are provided on the partition inside the outer shell of the hydraulic oil tank. While ensuring the smooth flow of hydraulic oil, the flow rate of hydraulic oil is slowed down, which has the functions of cooling and mitigating impact, and is conducive to the precipitation of air bubbles in the oil.

[0076] In this embodiment, a partition is used to isolate an independent first return oil chamber 1 in the return oil chamber. When hydraulic oil returns, the closed first return oil chamber 1 can effectively reduce the impact of high-pressure return oil on the inside of the oil tank, making the hydraulic oil flow in the oil tank smooth and reducing the generation of air bubbles during return oil. At the same time, reducing the impact of return oil on the inside of the oil tank can avoid agitating the hydraulic oil residue that has settled at the bottom of the oil tank, which is conducive to the discharge of hydraulic oil residue.

[0077] In this embodiment, a first through hole 11 is opened on the first partition 7 between the first return oil chamber 1 and the second return oil chamber 2 to install a built-in return oil filter. The main valve returns oil separately to the first return oil chamber 1, and the hydraulic oil enters the second return oil chamber 2 only after being filtered by the built-in return oil filter, which helps to filter the hydraulic oil return and reduces the residue in the hydraulic oil tank.

[0078] In this embodiment, a baffle with through holes is also provided in the oil suction chamber to divide the oil suction chamber into a first oil suction chamber 5 and a second oil suction chamber 6, which slows down the flow rate of hydraulic oil and is more conducive to the precipitation of air bubbles in the oil tank.

[0079] This embodiment also includes a first return oil pipe 15. The pipe body of the first return oil pipe 15 passes through the first suction chamber 5 and the second suction chamber 6 before connecting to the third return oil chamber 3. Compared to the existing hydraulic oil tank where the return oil pipe is directly connected to the return oil chamber, this simplifies the design of the hydraulic component's return oil pipeline, making the pipeline route simpler and clearer, and making installation and subsequent maintenance more convenient and faster. Simultaneously, since the hydraulic oil temperature in the suction chamber is lower than the return oil temperature, the return oil can dissipate heat as it flows through the suction chamber, thus lowering the temperature of the hydraulic oil returning to the return oil chamber. Furthermore, the extended pipe body of the return oil pipe can effectively mitigate return oil impact and reduce the generation of air bubbles.

[0080] This embodiment also includes multiple suction nozzles, return nozzles, and connectors on the hydraulic oil tank, which ensures convenient connection of the suction and return oil lines when the hydraulic components of the aerial work platform are located in different positions.

[0081] The embodiments of this utility model are only used to illustrate the technical solutions of this utility model and are not intended to limit it. For those skilled in the art, it will be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A hydraulic oil tank, characterized in that: Includes the outer casing of the oil tank, the return oil chamber, the suction oil chamber, and the first return oil pipe; The oil return chamber includes a first oil return chamber, a second oil return chamber located below the first oil return chamber, and a third oil return chamber located to the left of the first and second oil return chambers; The oil suction chamber is located to the left of the third oil return chamber; The interior of the oil tank shell is provided with a first partition separating the first oil return chamber from the second oil return chamber, a second partition separating the third oil return chamber from the first oil return chamber and the second oil return chamber, and a third partition separating the third oil return chamber from the oil suction chamber. The first partition plate has a first through hole connecting the first oil return chamber and the second oil return chamber, and a built-in oil return filter is provided on the first through hole; The second partition plate has several second through holes that connect the second oil return chamber and the third oil return chamber; The third partition plate has several third through holes that connect the third oil return chamber and the oil suction chamber; The first return oil pipe connects the outside of the outer casing and the inside of the third return oil chamber, and the pipe body of the first return oil pipe passes through the suction chamber.

2. A hydraulic oil tank according to claim 1, characterized in that: A first oil return nozzle is provided on the top of the first oil return chamber, a second oil return nozzle is provided on the side wall of the second oil return chamber, and a third oil return nozzle is provided on the side wall of the third oil return chamber. Oil return filters are installed on the first, second, and third oil return nozzles.

3. A hydraulic oil tank according to claim 2, characterized in that: A return oil straight pipe is installed at the top of the third return oil chamber, and a return oil filter is installed on the return oil straight pipe.

4. A hydraulic oil tank according to claim 1, characterized in that: It also includes a fourth partition; The fourth partition is disposed inside the oil suction chamber, and the fourth partition divides the oil suction chamber into a first oil suction chamber and a second oil suction chamber. The fourth partition plate has several fourth through holes that connect the first oil suction chamber and the second oil suction chamber.

5. A hydraulic oil tank according to claim 4, characterized in that: A first oil suction nozzle is provided on the top of the first oil suction chamber, a second oil suction nozzle is provided on the top of the second oil suction chamber, and a third oil suction nozzle is provided on the outer wall of the first oil suction chamber; Oil suction filters are provided on the first, second, and third oil suction nozzles.

6. A hydraulic oil tank according to claim 4, characterized in that: It also includes an oil suction connector; The oil suction connector is located on the outer wall of the first oil suction chamber and is connected to the first oil suction chamber.

7. A hydraulic oil tank according to claim 4, characterized in that: It also includes a first connector and a second connector; The first connector is disposed on the outer wall of the first oil suction chamber, and the first connector is connected to the first oil suction chamber; The second connector is located on the outer wall of the second return oil chamber and is connected to the second return oil chamber.

8. A hydraulic oil tank according to claim 4, characterized in that: The first partition has a Z-shaped structure, while the second, third, and fourth partitions are rectangular in shape.

9. A hydraulic oil tank according to claim 1, characterized in that: It also includes a second return oil pipe, an oil drain cone, and a level gauge; The second return oil pipe connects the outside of the oil tank shell and the inside of the first return oil chamber, and the pipe body of the second return oil pipe passes through the third return oil chamber; The drain cone is installed on the bottom plate of the oil tank shell and is connected to the third return oil chamber; The level gauge is installed on the inner wall of the third return oil chamber.

10. An aerial work platform, characterized in that: The aerial work platform is equipped with a hydraulic oil tank as described in any one of claims 1 to 9.

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