Shield tunneling machine hydraulic oil tank with sliding rail filter screen

Abstract

The utility model discloses a shield tunneling machine hydraulic oil tank with a sliding rail filter screen, relates to the technical field of hydraulic oil tanks, and solves the problems that in the prior art, a shield tunneling machine needs to be stopped when a filter element is replaced, and the construction efficiency is affected. The oil tank comprises an oil tank body, a liquid inlet and a liquid outlet are formed in the oil tank body, at least two pairs of rails are arranged in the oil tank body, a sliding rail filter screen is detachably arranged between each pair of rails in a sliding mode, and the sliding rail filter screens are located between the liquid inlet and the liquid outlet. The sliding rail filter screen is arranged on the rail in a sliding and detachable mode, filtering of hydraulic oil is achieved, the sliding rail filter screen can be detached, and the detaching process is simple and convenient; by arranging at least two pairs of rails and correspondingly arranging at least two layers of sliding rail filter screens, the sliding rail filter screens can be replaced one by one when needing to be replaced, and at least one layer of sliding rail filter screen can effectively filter in the replacement process, so that the shield tunneling machine does not need to be shut down, and the construction efficiency is effectively guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic oil tanks, in particular to a shield machine hydraulic oil tank with a sliding rail filter screen. Background Technique

[0002] When a shield machine works, it depends on the stable operation of the hydraulic system. However, during the long-term use of hydraulic oil, it will inevitably be mixed with impurities, which may have an adverse impact on the performance and service life of the equipment. With the development of technology, research on hydraulic oil filtration has gradually emerged, mostly by installing a filtering device in the hydraulic oil pipeline to filter impurities in the hydraulic oil.

[0003] For example, for an easily installed hydraulic oil filter with the application number 202023001523.8, when replacing or cleaning the filter element, it is necessary to close the valves on both sides, which means that the hydraulic equipment still needs to stop working, affecting the normal construction of the shield machine; for a nested filtering type hydraulic oil tank of a shield machine with the application number 202223204011.0, it will also affect the normal operation of the shield machine when replacing the filter element, and this design has a large floor area and a small amount of hydraulic oil that can be accommodated.

[0004] Therefore, it is extremely necessary to design a hydraulic oil tank whose filter element replacement does not affect the normal operation of the shield. Content of the Utility Model

[0005] In view of the deficiencies in the above background technique, the utility model provides a shield machine hydraulic oil tank with a sliding rail filter screen, which solves the problem that the replacement of the filter element in the prior art requires the shield machine to stop working and affects the construction efficiency.

[0006] The technical solution of the utility model is realized as follows: A shield machine hydraulic oil tank with a sliding rail filter screen includes a tank body, an inlet and an outlet are provided on the tank body, at least two pairs of tracks are arranged in the tank body, a sliding rail filter screen is slidably and detachably arranged between each pair of tracks, the sliding rail filter screen is located between the inlet and the outlet, and the sliding rail filter screen can filter the hydraulic oil entering the outlet.

[0007] As a preferred solution, the tracks are groove-type sliding rails, and each pair of tracks is symmetrically arranged on the opposite inner walls of the tank body respectively.

[0008] As a preferred solution, rail grooves are formed on the tracks, and the side edges of the sliding rail filter screen are slidably matched with the rail grooves through the rail grooves. The inlet and the outlet are respectively located on the side walls of the tank body on both sides of the sliding rail filter screen.

[0009] As a preferred solution, the sliding rail filter screen includes a filter screen body, and rail bars are arranged on both side edges of the filter screen body.

[0010] As a preferred solution, a baffle is provided at the lower end of the filter screen body. The cross-section of the rail groove is T-shaped, and the rail is a long strip-shaped rail, and the middle of the long strip-shaped rail is connected to the filter screen body.

[0011] As a preferred solution, the track is L-shaped and welded and fixed on the inner wall of the fuel tank body. The liquid inlet is arranged higher than the liquid outlet.

[0012] As a preferred solution, a liquid inlet flange is provided at the liquid inlet, and a liquid outlet flange is provided at the liquid outlet. An opening for the sliding rail filter to enter and exit is provided on the fuel tank body, and an upper cover is provided on the opening.

[0013] The beneficial effects of the present utility model are as follows: By sliding and detachably arranging the sliding rail filter on the track, it not only meets the filtration of hydraulic oil but also realizes the detachable of the sliding rail filter, and the disassembly process is simple and convenient; By setting at least two pairs of tracks and correspondingly setting at least two layers of sliding rail filters, the sliding rail filters can be replaced one by one when needed, and there is at least one layer of sliding rail filter still effectively filtering during the replacement process. Therefore, the shield machine does not need to stop, effectively ensuring the construction efficiency; Further, a baffle is provided at the lower end of the filter screen body, which can prevent impurities from sliding back into the hydraulic oil and ensure the quality of the hydraulic oil. Description of the Drawings

[0014] In order to more clearly illustrate the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0015] Figure 1 It is a schematic diagram of the internal structure of the fuel tank body of the present utility model;

[0016] Figure 2 It is a schematic diagram of the track structure of the present utility model;

[0017] Figure 3 It is a schematic diagram of the connection structure between the track and the fuel tank body of the present utility model;

[0018] Figure 4 It is a schematic diagram of the structure of the sliding rail filter of the present utility model from one perspective;

[0019] Figure 5 It is a schematic diagram of the structure of the sliding rail filter of the present utility model from another perspective;

[0020] In the figure: 1: fuel tank body, 2: liquid inlet, 3: liquid outlet, 4: track, 5: sliding rail filter, 6: rail groove, 7: filter screen body, 8: rail, 9: baffle. Detailed Embodiments

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0022] As shown in Figure 1 , 2 , and 3, in Embodiment 1, a shield machine hydraulic oil tank with a sliding rail filter screen includes a tank body 1, on which a liquid inlet 2 and a liquid outlet 3 are provided. At least two pairs of tracks 4 are arranged inside the tank body 1, and a sliding rail filter screen 5 is slidably and detachably arranged between each pair of tracks 4. In this embodiment, the sliding rail filter screen 5 is arranged on the tracks 4 in a sliding manner, realizing the detachable property of the sliding rail filter screen 5 when it needs to be replaced, and being able to be quickly slid and inserted for installation when being loaded. The disassembly and assembly process is simple and convenient. In this embodiment, a total of two pairs of tracks 4 are provided, and two sliding rail filter screens 5 are correspondingly arranged. The sliding rail filter screens 5 are located between the liquid inlet 2 and the liquid outlet 3. During normal use, the hydraulic oil entering the liquid outlet 3 from the tank body 1 can be filtered through two sliding rail filter screens at the same time, filtering out the residues in the hydraulic oil and avoiding affecting the performance and service life of the connected equipment during actual use.

[0023] When this embodiment is in use, during replacement, the shield machine does not need to stop. The old sliding rail filter screens 5 are taken out one by one. After the two sides of the new sliding rail filter screen 5 are matched with the tracks 4 and inserted in place, then the next sliding rail filter screen 5 is replaced. During replacement, at least one layer of sliding rail filter screen 5 effectively filters the hydraulic oil, effectively ensuring the construction efficiency.

[0024] As a further optional implementation manner, an opening for the entry and exit of the sliding rail filter screen 5 is provided on the tank body 1, and an upper cover is provided on the opening. The upper cover can be opened when replacing the sliding rail filter screen 5 to provide a replacement channel and space, and is closed during use to form a closed box body.

[0025] In Embodiment 2, on the basis of Embodiment 1, the tracks 4 are groove-type sliding rails, and each pair of tracks 4 is symmetrically welded and fixedly arranged on the opposite inner walls of the tank body 1. In this embodiment, rail grooves 6 are opened on the tracks 4, and the two sides of the sliding rail filter screen 5 are respectively slidably connected through the rail grooves 6. The liquid inlet 2 and the liquid outlet 3 are respectively located on the side walls of the tank body 1 on both sides of the sliding rail filter screen 5. During daily use, the tank can be separated by the sliding rail filter screen, so that when the hydraulic oil flowing back into the tank body 1 from the liquid inlet 2 is reused and discharged from the liquid outlet 3, it must flow through the sliding rail filter screen 5 and be filtered.

[0026] In addition, as shown in Figure 4 , 5As shown in the figure, the slide rail filter screen 5 includes a filter screen body 7. The filter screen body is a metal filter screen, and small holes are formed on its metal surface for filtering impurities in the hydraulic oil. Correspondingly, rail strips 8 for slidingly mating with the rail grooves 6 are provided on both sides of the filter screen body 7. Specifically, in this embodiment, the cross-sectional shape of the rail groove 6 is T-shaped, and the rail strip 8 is a long strip-shaped rail strip, and the middle of the long strip-shaped rail strip is connected to the filter screen body 7. During actual use, the long strip-shaped rail strip can be stuck in the T-shaped rail groove, and there is a gap between the long strip-shaped rail strip and the rail groove, so that the long strip-shaped rail strip can slide along the length direction in the rail groove during disassembly and assembly, and the rail groove plays a guiding role for the long strip-shaped rail strip during sliding. In addition, in this embodiment, the long strip-shaped rail strip is a rectangular strip made of a conventional material with good elasticity or toughness, and can deform with the shape of the rail groove when sliding in the rail groove to adapt to the rail groove path and insert more smoothly. As an alternative implementation, the long strip-shaped rail strip can be made of a rigid material and is equally divided into a number of rectangular blocks along the length direction of the side wall of the filter screen body. When inserting into the rail groove, the filter screen body can be adaptively bent with the shape of the rail groove by using its own toughness or elasticity, and the rectangular blocks play a role of limiting cooperation.

[0027] As a further implementation, a baffle 9 is provided at the lower end of the filter screen body 7. In this embodiment, the baffle 9 is fixedly provided at the insertion end of the filter screen body 7, the plate surface of the baffle is perpendicular to the filter screen body, the baffle is a long strip-shaped baffle, and the baffle is located on the side of the filter screen body close to the liquid inlet. The baffle is provided to prevent impurities attached to the filter screen body from sliding back into the hydraulic oil when the filter screen body is taken out of the hydraulic oil tank and more than half of the filter screen is pulled out, ensuring the quality of the hydraulic oil.

[0028] Embodiment 3, on the basis of Embodiment 2, the liquid inlet 2 is arranged higher than the liquid outlet 3, the track 4 is L-shaped and fixedly welded to the inner wall of the fuel tank body 1. Correspondingly, the slide rail filter screen installed on the track is also arranged in an L-shape when in use. In this embodiment, through the L-shaped track, after the slide rail filter screen 5 is installed, both sides of the slide rail filter screen are connected to the two side walls of the fuel tank body through the track, and the lower side of the slide rail filter screen is directly attached to the side wall of the fuel tank body provided with the liquid inlet, dividing the internal space of the fuel tank body 1 into a rectangular space connected to the liquid inlet 2 and an L-shaped space connected to the liquid outlet 3. When the oil liquid returns to the fuel tank body 1 through the liquid inlet 2, it first enters the rectangular space, then passes through the filtration of the slide rail filter screen and enters the L-shaped space, and finally is discharged through the liquid outlet communicated with the L-shaped space. When two or more pairs of tracks are provided, they are all arranged in parallel in an L-shape, and there is a gap between adjacent slide rail filter screens. Among the slide rail filter screens arranged thereon, the specification length of the slide rail filter screen close to the liquid outlet is greater than the length of the slide rail filter screen close to the liquid inlet to meet the filtration requirements.

[0029] In the shield machine hydraulic oil tank with a slide rail filter of the present invention, as described above, replacing the filter element of the existing hydraulic oil filter requires stopping the tunneling of the shield machine, which affects the construction efficiency, occupies a large area, and relatively reduces the amount of hydraulic oil that can be accommodated. The slide rail filter is arranged inside the oil tank body, and the function of filtering hydraulic oil can be realized without affecting the original occupied space and the amount of hydraulic oil that can be accommodated. The L-shaped slide rail filter can ensure the simplicity of replacing the filter, and the two-layer arrangement of the slide rail filter can ensure that the shield does not need to stop for waiting when replacing the filter.

[0030] As a further implementation manner, a liquid inlet flange is welded on the liquid inlet 2, and a liquid outlet flange is welded on the liquid outlet 3. By setting the liquid inlet flange and the liquid outlet flange, the liquid inlet flange is convenient for connecting with the oil return pipeline, and the liquid outlet flange is convenient for connecting with the oil outlet pipeline.

[0031] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A shield machine hydraulic oil tank with a sliding rail filter screen, comprising an oil tank body (1), an inlet (2) and an outlet (3) are arranged on the oil tank body (1), and it is characterized in that: The fuel tank body (1) is internally provided with at least two pairs of tracks (4), and a slide rail filter screen (5) is slidably and detachably arranged between each pair of tracks (4). The slide rail filter screen (5) is located between the liquid inlet (2) and the liquid outlet (3).

2. The hydraulic oil tank of the shield machine with a slide rail filter screen according to claim 1, wherein: The track (4) is a clamping groove type slide rail, and each pair of tracks (4) is symmetrically arranged on the opposite inner walls of the fuel tank body (1) respectively.

3. The hydraulic oil tank of the shield machine with a sliding rail filter screen according to claim 2, characterized in that: A rail groove (6) is formed in the track (4), and the side of the slide rail filter screen (5) is slidably matched with the rail groove (6). The liquid inlet (2) and the liquid outlet (3) are respectively located on the side walls of the fuel tank body (1) on both sides of the slide rail filter screen (5).

4. The hydraulic oil tank of the shield machine with a sliding rail filter screen according to claim 3, characterized in that: The slide rail filter screen (5) includes a filter screen body (7), and rail strips (8) are arranged on both sides of the filter screen body (7).

5. The hydraulic oil tank of the shield machine with a sliding rail filter screen according to claim 4, characterized in that: A baffle (9) is arranged at the lower end of the filter screen body (7).

6. The hydraulic oil tank of the shield machine with a sliding rail filter screen according to any one of claims 3 to 5, characterized in that: The cross-section of the rail groove (6) is T-shaped, and the rail strip (8) is a long strip-shaped rail strip, and the middle part of the long strip-shaped rail strip is connected to the filter screen body (7).

7. The hydraulic oil tank of the shield machine with a sliding rail filter screen according to claim 6, characterized in that: The track (4) is L-shaped and is welded and fixed on the inner wall of the fuel tank body (1).

8. The hydraulic oil tank of the shield machine with a sliding rail filter screen according to claim 1 or 7, characterized in that: The liquid inlet (2) is arranged higher than the liquid outlet (3).

9. The hydraulic oil tank of the shield machine with a sliding rail filter screen according to claim 8, wherein: A liquid inlet flange is arranged on the liquid inlet (2), and a liquid outlet flange is arranged on the liquid outlet (3).

10. The shield machine hydraulic oil tank with a slide rail filter screen according to claim 9, characterized in that: An opening for the slide rail filter screen (5) to enter and exit is arranged on the fuel tank body (1), and an upper cover is arranged on the opening.

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