Tank cover of hydraulic station oil tank

Abstract

The utility model discloses a tank cover of a hydraulic station oil tank, which relates to the technical field of tank cover structures of oil tanks, and comprises a tank cover body (1) and mounting holes (2) arranged in the tank cover body (1) and used for mounting hydraulic elements, a column platform (9) is fixedly connected under each round hole (8), a cylinder (10) is fixedly arranged at the top of each column platform (9) and embedded in the corresponding round hole (8), and the top of each column platform (9) is fixedly connected with the corresponding mounting hole (2). A threaded hole B (11) extending into the column table (9) is formed in the top surface of the column (10) in the axial direction of the column (10). The utility model has the beneficial effects that dirty hydraulic oil leaked from a hydraulic element can be effectively prevented from flowing into the oil tank, and the effect of preventing the original hydraulic oil from being polluted is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of a tank cover structure of an oil tank, in particular to a tank cover of an oil tank of a hydraulic station. Background Art

[0002] The hydraulic station is an important part of the CNC machine tool. The hydraulic station can provide power for the actuators in the CNC machine tool to ensure that the actuators can process parts smoothly. Among them, the oil tank in the hydraulic station is one of its main components. The oil tank is used to hold hydraulic oil. The oil tank includes a box body and a box cover that is detachably connected to the top of the box body.

[0003] The structure of the box cover used in a workshop is as follows Figure 1~Figure 2 As shown, it comprises a box cover body 1, a mounting hole 2 for mounting a hydraulic element is provided on the top of the box cover body 1, and a plurality of threaded holes A3 are provided in the box cover body 1 along the circumferential direction of the mounting hole 2.

[0004] The method of connecting the box cover with the box body and the hydraulic element 4 is as follows: the worker first detachably connects the box cover body 1 of the box cover to the top of the box body, and then inserts the pipe 5 on the hydraulic element 4 into the mounting hole 2, and then supports the flange 6 on the hydraulic element 4 on the top surface of the box cover body 1, and ensures that the through holes on the flange 6 are aligned with each threaded hole A3, as shown in FIG. Figure 3 Then the worker uses screw A7 to pass through the through hole of flange 6 downward and threadedly connects with threaded hole A3 to fix flange 6 to cover body 1, and then fix hydraulic element 4 to cover body 1, as shown in FIG. Figure 4 As shown, the connection between the box cover, the box body and the hydraulic element 4 is finally achieved.

[0005] However, although this box cover can be used, it still has the following technical defects:

[0006] After the hydraulic element 4 is used for a period of time, hydraulic oil will leak out from it. The leaked dirty hydraulic oil will flow into the original hydraulic oil in the oil tank through the through hole of the flange 6 and the threaded hole A3, thereby polluting the hydraulic oil in the oil tank. Once the contaminated hydraulic oil flows into the actuator of the CNC machine tool, it will cause damage to the corresponding actuator, thereby increasing the maintenance cost of the actuator in the later stage. Therefore, there is an urgent need for a tank cover that can effectively prevent the dirty hydraulic oil leaking from the hydraulic element from flowing into the oil tank. Utility Model Content

[0007] The utility model aims to overcome the shortcomings of the prior art and provide a tank cover of a hydraulic station oil tank which can effectively prevent dirty hydraulic oil leaking from a hydraulic element from flowing into the oil tank.

[0008] The purpose of the utility model is achieved through the following technical solutions: a box cover of a hydraulic station oil tank, which includes a box cover body, a mounting hole opened in the box cover body for installing a hydraulic element, a plurality of circular holes are opened in the box cover body along the circumferential direction of the mounting hole, a column base is fixedly connected directly below each circular hole, a cylinder is fixedly provided on the top of the column base, the outer diameter of the cylinder is smaller than the outer diameter of the column base, the cylinder is embedded in the circular hole, and a threaded hole B extending into the column base is opened on the top surface of the cylinder along its axial direction.

[0009] The column platform is coaxially arranged with the cylinder.

[0010] The cylinder and the circular hole are interference fit.

[0011] The outer sleeve of the cylinder is provided with a sealing ring, and the sealing ring is pressed and fixed between the top surface of the column base and the bottom surface of the box cover body.

[0012] The circular holes are evenly distributed outside the mounting hole.

[0013] The utility model has the following advantages: it can effectively prevent dirty hydraulic oil leaking from the hydraulic element from flowing into the oil tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural diagram of a box cover;

[0015] Figure 2 for Figure 1 A top view of

[0016] Figure 3 A schematic diagram showing how to align the through holes on the flange of the hydraulic component with the threaded holes A respectively;

[0017] Figure 4 It is a schematic diagram of fixing the hydraulic element to the box cover body by screw A;

[0018] Figure 5 It is a schematic diagram of the structure of the utility model;

[0019] Figure 6 for Figure 5 A top view of

[0020] Figure 7 It is a schematic diagram of the connection between the column and the pedestal;

[0021] Figure 8 for Figure 7 The main cross-sectional diagram of

[0022] Fig. 9 A schematic diagram showing how to align the through holes on the flange of the hydraulic component with the threaded holes B respectively;

[0023] Fig.10 It is a schematic diagram of fixing the hydraulic element to the box cover body by screw B;

[0024] In the figure:

[0025] 1-box cover body, 2-mounting hole, 3-threaded hole A, 4-hydraulic element, 5-pipeline, 6-flange, 7-screw A;

[0026] 8-round hole, 9-column base, 10-column, 11-threaded hole B, 12-screw B. DETAILED DESCRIPTION

[0027] The utility model is further described below in conjunction with the accompanying drawings, and the protection scope of the utility model is not limited to the following:

[0028] like Figure 5~Figure 8 As shown, a tank cover of a hydraulic station oil tank comprises a tank cover body 1, and a mounting hole 2 for mounting a hydraulic element is provided in the tank cover body 1. A plurality of circular holes 8 are provided in the tank cover body 1 along the circumferential direction of the mounting hole 2. The circular holes 8 are evenly distributed on the outside of the mounting hole 2. A column 9 is fixedly connected directly below each circular hole 8. A cylinder 10 is fixedly provided on the top of the column 9. The column 9 and the cylinder 10 are coaxially arranged. The cylinder 10 and the circular hole 8 are interference fit. The outer diameter of the cylinder 10 is smaller than the outer diameter of the column 9. The cylinder 10 is embedded in the circular hole 8. A threaded hole B11 extending into the column 9 is provided on the top surface of the cylinder 10 along its axial direction.

[0029] The outer part of the cylinder 10 is provided with a sealing ring, and the sealing ring is pressed and fixed between the top surface of the column base 9 and the bottom surface of the box cover body 1.

[0030] The method of connecting the box cover with the box body and the hydraulic element 4 is as follows:

[0031] The worker first detachably connects the box cover body 1 of the box cover to the top of the box body, and then inserts the pipe 5 on the hydraulic component 4 into the mounting hole 2, and then supports the flange 6 on the hydraulic component 4 on the top surface of the box cover body 1, and ensures that the through holes on the flange 6 are aligned with each threaded hole B11, as shown in FIG. Fig. 9 Then the worker uses the screw B12 to pass through the through hole of the flange 6 downward and threadedly connects with the threaded hole B11 to fix the flange 6 to the box cover body 1, and then fix the hydraulic element 4 to the box cover body 1, as shown in FIG. Fig.10 As shown, the connection between the box cover, the box body and the hydraulic element 4 is finally achieved.

[0032] After the hydraulic element 4 has been used for a period of time, the dirty hydraulic oil leaked from the hydraulic element 4 will not flow into the oil tank through the threaded hole B11, because the threaded hole B11 opened between the cylinder 10 and the column base 9 does not penetrate the bottom of the column base 9. Therefore, the dirty hydraulic oil flowing into the threaded hole B11 will not flow into the oil tank. It can be seen that compared with the box cover shown in the figure, the box cover can effectively prevent the dirty hydraulic oil leaked from the hydraulic element from flowing into the oil tank, and plays a role in preventing the original hydraulic oil from being polluted.

[0033] In addition, since the sealing ring is pressed between the column base 9 and the box cover body 1, the sealing ring can prevent the dirty hydraulic oil entering the circular hole 8 from flowing downward, further preventing the dirty hydraulic oil from entering the oil tank and contaminating the hydraulic oil therein.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A tank cover for a hydraulic station oil tank, characterized in that: The invention comprises a box cover body (1), a mounting hole (2) provided in the box cover body (1) for mounting a hydraulic element, a plurality of circular holes (8) being provided in the box cover body (1) along the circumferential direction of the mounting hole (2), a column base (9) being fixedly connected directly below each circular hole (8), a cylinder (10) being fixedly provided on the top of the column base (9), the outer diameter of the cylinder (10) being smaller than the outer diameter of the column base (9), the cylinder (10) being embedded in the circular hole (8), and a threaded hole B (11) extending into the column base (9) being provided on the top surface of the cylinder (10) along its axial direction.

2. The tank cover of a hydraulic station oil tank according to claim 1, characterized in that: The column base (9) and the cylinder (10) are coaxially arranged.

3. The tank cover of a hydraulic station oil tank according to claim 1, characterized in that: The cylinder (10) and the circular hole (8) are interference fit.

4. The tank cover of a hydraulic station oil tank according to claim 1, characterized in that: The outer sleeve of the cylinder (10) is provided with a sealing ring, and the sealing ring is pressed and fixed between the top surface of the column base (9) and the bottom surface of the box cover body (1).

5. The tank cover of a hydraulic station oil tank according to claim 1, characterized in that: The circular holes (8) are evenly distributed outside the mounting hole (2).

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