Hydraulic oil tank for hydrostatic loader

Abstract

The utility model relates to a hydraulic oil tank for a hydrostatic loading machine, which belongs to the technical field of hydraulic oil tanks, and comprises an oil tank body formed by integral injection molding, so that the loss of oil pressure in a pipeline caused by overlong oil pipe is reduced, and meanwhile, the oil tank is designed into a first cavity and a second cavity which are integrated; a partition cavity is arranged at the joint of the interior of the first cavity and the interior of the second cavity, hydraulic oil on the upper portion of the first cavity is blocked by the partition cavity and then flows to an oil return cavity of the first cavity, original oil and newly-added oil in the cavities are fully mixed, the circulation time is delayed, meanwhile, heat is circularly dissipated through changes of a space structure, and the heat dissipation efficiency is improved. And the internal structural strength of the mailbox is enhanced by utilizing the structure of the partition cavity.

Description

Technical Field

[0001] The present disclosure belongs to the technical field of hydraulic oil tanks, and in particular relates to a hydraulic oil tank for a hydrostatic loader. Background Art

[0002] The statements herein merely provide background information related to the present disclosure and may not necessarily constitute prior art.

[0003] In the field of construction machinery, small loaders play a vital role in various construction scenarios with their flexibility and efficiency. However, their compact structure and limited space often present design challenges, particularly in the placement of large components such as the hydraulic oil tank. As a core component of the hydraulic system, the hydraulic oil tank not only carries the heavy responsibility of oil storage but also shoulders key functions such as heat dissipation and filtration. Its design and layout directly impact the performance and stability of the entire hydraulic system.

[0004] However, arranging a hydraulic oil tank with such multifunctionality on a small loader is not an easy task. Limited space often restricts the placement of the hydraulic oil tank, preventing the flexible placement available on larger equipment. Currently, most small loaders place the hydraulic oil tank in a relatively spacious area away from the pump. While this arrangement alleviates space constraints to some extent, the distance between the tank and the pump requires longer hydraulic lines. This not only increases pressure drop but can also lead to poor pump suction and reduced system efficiency. Furthermore, long lines increase maintenance complexity and costs. Utility Model Content

[0005] The purpose of the present disclosure is to provide a hydraulic oil tank for a hydrostatic loader, which can solve at least one of the above-mentioned technical problems.

[0006] To achieve the above-mentioned objectives, one or more embodiments of the present disclosure provide a hydraulic oil tank for a hydrostatic loader, comprising a tank body, wherein the tank body comprises a cylindrical first cavity and a stepped second cavity, the second cavity is horizontally arranged, the first cavity is perpendicular to the second cavity, an oil return cavity is provided on the bottom surface of the interior of the first cavity, the bottom surface of the interior of the second cavity is stepped, a partition cavity is provided at the connecting position of the first cavity and the second cavity, one end of the partition cavity is flush with the upper step surface of the second cavity step, and a gap is left between the other end and the inner end surface of the second cavity shell.

[0007] Furthermore, a protruding square structure is provided on the upper portion of one side of the cylindrical shape of the first cavity, the lower portion of the square structure is flat as a whole, the upper portion of the other side is flat, and the lower portion is an inclined surface.

[0008] Furthermore, a refueling filter, a breather and an oil return filter are sequentially arranged on the top of the first cavity from one side of the protruding square structure to the other side.

[0009] Furthermore, the oil refueling filter is arranged on the protruding square structure, and the return oil filter is arranged on the top of the first cavity.

[0010] Furthermore, the first cavity is a plane as a whole and oil windows for observing the oil level are provided on the upper and lower parts of one side.

[0011] Furthermore, an oil suction port is provided on the end surface of the second cavity close to the step.

[0012] Furthermore, an oil drain port is provided on the bottom of the second cavity, close to the plane.

[0013] Furthermore, a plurality of groups of “L”-shaped reinforcing ribs are provided at the connection between the first cavity and the second cavity.

[0014] Furthermore, the first cavity and the second cavity are integrally formed by injection molding.

[0015] Furthermore, the fuel tank body is connected to the loader platform via bolts.

[0016] The beneficial effects of one or more of the above technical solutions are:

[0017] The present invention improves the structure of the oil tank and adopts an integrated injection molding design according to the spatial structure after the pump body is installed, thereby reducing the loss of oil pressure in the pipeline caused by the excessive length of the oil pipe. At the same time, the oil tank is designed to be integrated with the first cavity and the second cavity. A partition cavity is provided at the connection between the first cavity and the second cavity, so that the hydraulic oil in the upper part of the first cavity flows through the lower return oil cavity and is blocked by the partition cavity, and most of it flows to the rear of the second cavity, so that the oil can be fully circulated, mixed, retained, and dissipated in the second cavity, and the structure of the partition cavity is used to strengthen the structural strength of the interior of the mailbox. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings in the specification, which constitute a part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute a limitation on this application.

[0019] Figure 1 A three-dimensional diagram of the fuel tank body in the main viewing direction in one or more embodiments of the present disclosure;

[0020] Figure 2 is a cross-sectional view of a fuel tank body according to one or more embodiments of the present disclosure;

[0021] Figure 3 This is a three-dimensional view of the fuel tank body in the rear view direction in one or more embodiments of the present disclosure.

[0022] In the figure, 1. Breather; 2. Oil return filter; 3. Oil window; 4. First cavity; 5. Partition cavity; 6. Oil suction port; 7. Oil drain port; 8. Oil filling filter; 9. Second cavity; 10. Oil return cavity. DETAILED DESCRIPTION

[0023] like Figures 1 to 3 As shown, this embodiment provides a hydraulic oil tank for a hydrostatic loader, including an integrally injection-molded oil tank body, which is connected to the loader platform via bolts.

[0024] like Figure 1 As shown, the fuel tank body includes a cylindrical first cavity 4 and a stepped second cavity 9. The second cavity 9 is horizontally arranged relative to the loader platform, and the first cavity 4 is perpendicular to the second cavity 9. A plurality of groups of "L"-shaped reinforcing ribs are provided at the connection between the first cavity 4 and the outside of the second cavity 9. The bottom surface of the interior of the second cavity 9 is stepped, and a protruding square structure is provided on the upper part of one side of the cylindrical first cavity 4. The lower part of the square structure is flat as a whole, the upper part of the other side is flat, and the lower part is an inclined surface.

[0025] The top of the first cavity 4 is provided with a refueling filter 8, a respirator 1 and an oil return filter 2 in sequence from one side of the protruding square structure to the other side. The refueling filter 8 is provided on the protruding square structure, and the oil return filter 2 is provided on the top plane of the first cavity.

[0026] The first cavity 4 is a plane as a whole, and oil windows 3 for observing the oil level are provided on the upper and lower parts of one side. The upper oil window 3 is used to observe whether the height of the refueling amount is at the set position to avoid excessive oil. The lower oil window 3 is used to observe the height of the remaining oil to avoid poor oil absorption of the pump body due to low oil level.

[0027] like Figure 2 As shown, an oil return chamber 10 is provided on the bottom surface of the interior of the first cavity 9, and a partition chamber 5 is provided at the connection position between the first cavity 4 and the second cavity 9. One end of the partition chamber 5 is flush with the upper step surface of the step of the second cavity 9, and a gap is left between the other end and the internal end surface of the second cavity 9. The top height of the oil return chamber 10 is set to be flush with the bottom height of the partition chamber 5. In this way, when the hydraulic oil in the oil return chamber 10 accumulates to a height higher than the partition chamber 5, the hydraulic oil can flow into the second cavity. The newly added hydraulic oil in the oil return chamber 10 can be fully mixed with the previously remaining hydraulic oil while delaying the circulation time of the hydraulic oil, making full use of the space for circulation and heat dissipation.

[0028] like Figure 3As shown, an oil suction port 6 is provided on the end face of the second cavity 9 close to the step side, and an oil discharge port 7 is provided on the bottom of the second cavity 9 close to the plane side. The required hydraulic oil is drawn from the first cavity through the oil suction port 6, and the oil discharge port 7 is used to discharge the hydraulic oil that is no longer needed in the system in time to ensure the cleanliness and stability of the system, thereby optimizing the internal flow channel layout, reducing the volume and weight of the oil tank while ensuring its functionality, so that it can be better arranged in a limited space.

[0029] The working principle of this utility model:

[0030] Hydraulic oil enters through the oil filter 8 at the top of the first chamber 4, passes through the oil return chamber 10, and flows into the second chamber 9. When the oil level reaches between the oil windows 3, the external pump starts to suck oil into the hydraulic system through the oil suction port 6. The oil in the hydraulic system returns to the oil tank through the oil return filter 2. After returning to the oil tank, it flows to the oil return chamber 10. After passing through the partition 5, most of it enters the rear of the second chamber, and then re-enters the hydraulic system through the oil suction port 6, completing the stroke cycle. When the oil needs to be drained, the hydraulic oil in the tank is discharged through the oil drain port 7.

[0031] Although the above describes the specific implementation methods of the present disclosure in conjunction with the accompanying drawings, it is not intended to limit the scope of protection of the present disclosure. Those skilled in the art should understand that on the basis of the technical solution of the present disclosure, various modifications or variations that can be made by those skilled in the art without creative work are still within the scope of protection of the present disclosure.

Claims

1. A hydraulic oil tank for a hydrostatic loader, comprising a tank body, characterized in that: The oil tank body includes a cylindrical first cavity and a stepped second cavity. The second cavity is arranged horizontally, the first cavity is perpendicular to the second cavity, the bottom surface of the inside of the first cavity is provided with an oil return cavity, the bottom surface of the inside of the second cavity is stepped, and a partition cavity is provided at the connecting position of the first cavity and the second cavity. One end of the partition cavity is flush with the upper step surface of the second cavity step, and a gap is left between the other end and the inner end surface of the second cavity shell.

2. A hydraulic oil tank for a hydrostatic loader according to claim 1, characterized in that: A protruding square structure is provided on the upper portion of one side of the cylindrical first cavity, the lower portion of the square structure is flat as a whole, the upper portion of the other side is flat, and the lower portion is an inclined surface.

3. The hydraulic oil tank for a hydrostatic loader according to claim 1, characterized in that: The top of the first cavity is provided with a refueling filter, a breather and an oil return filter in sequence from one side of the protruding square structure to the other side.

4. A hydraulic oil tank for a hydrostatic loader according to claim 3, characterized in that: The oil refueling filter is arranged on the protruding square structure, and the oil return filter is arranged on the top of the first cavity.

5. The hydraulic oil tank for a hydrostatic loader according to claim 1, characterized in that: The first cavity is a plane as a whole, and oil windows for observing the oil level are provided on the upper and lower parts of one side.

6. The hydraulic oil tank for a hydrostatic loader according to claim 1, characterized in that: An oil suction port is provided on the end surface of the second cavity close to the step.

7. The hydraulic oil tank for a hydrostatic loader according to claim 1, characterized in that: An oil drain port is provided on the bottom of the second cavity, close to the plane.

8. The hydraulic oil tank for a hydrostatic loader according to claim 1, characterized in that: A plurality of groups of "L"-shaped reinforcing ribs are provided at the connection between the first cavity and the second cavity.

9. The hydraulic oil tank for a hydrostatic loader according to claim 1, characterized in that: The first cavity and the second cavity are integrally formed by injection molding.

10. The hydraulic oil tank for a hydrostatic loader according to claim 1, characterized in that: The oil tank body is connected to the loader platform through bolts.

Images