An oil suction filter system

Abstract

The utility model discloses an oil suction filter system, which relates to the field of hydraulic equipment, including an oil tank and a filter device installed in the oil tank, wherein the oil tank is provided with an oil outlet at the upper end and an oil inlet at the lower end, and the filter device includes: a filter cartridge, which is arranged in the oil tank and has a plurality of filter holes on its circumference; an upper end cover, which is elastically mounted on the upper end of the filter cartridge; a cover plate, which is sleeved on the outer circumference of the upper end cover and is threadedly matched with the inner wall of the oil tank; a lower end cover, which is elastically mounted on the lower end of the filter cartridge; a cleaning assembly, which includes a driving member installed on the cover plate, a connecting shaft penetrating the cover plate and the upper end cover, and a soft scraper installed at the lower end of the connecting shaft and in contact with the inner wall of the filter cartridge. The utility model has the advantages of high oil discharge efficiency and long service life.

Description

Technical Field

[0001] The utility model relates to the field of hydraulic equipment, in particular to an oil suction filter system. Background Art

[0002] The oil suction filter, installed on the pipeline, can remove larger solid impurities in the fluid, so that the machinery and equipment (including oil tanks, compressors, pumps, etc.) and instruments can work and operate normally, achieve the purpose of stabilizing the process and ensuring safe production. The main filtering materials of the oil suction filter are stainless steel porous plates, stainless steel woven meshes and stainless steel sintered meshes.

[0003] At present, the existing oil suction filter generally has a filter screen inside the shell, and the filter screen divides the inner cavity of the shell into a crude oil cavity and a clean oil cavity. After the oil in the crude oil cavity is filtered by the filter screen, the clean oil passes through the filter screen and enters the clean oil cavity. In this way, impurities can easily clog the mesh of the filter screen, reducing the efficiency of oil output. In addition, the filter screen is often removed and then manually scraped and cleaned, which increases the complexity of cleaning. Utility Model Content

[0004] In order to overcome the shortcomings of the background technology, the utility model provides an oil suction filter system with high oil output efficiency and long service life.

[0005] The technical solution adopted by the utility model is: an oil suction filter system, including an oil tank and a filtering device installed in the oil tank, wherein the oil tank is provided with an oil outlet at the upper end and an oil inlet at the lower end, and the filtering device comprises:

[0006] A filter cartridge is arranged in the oil tank and has a plurality of filter holes on its circumference;

[0007] An upper end cover is elastically mounted on the upper end of the filter cartridge;

[0008] A cover plate, which is sleeved on the outer circumference of the upper end cover and is threadedly matched with the inner wall of the oil tank;

[0009] A lower end cover, which is elastically mounted at the lower end of the filter cartridge;

[0010] The cleaning assembly comprises a driving member installed on the cover plate, a connecting shaft penetrating the cover plate and the upper end cover, and a soft scraper installed at the lower end of the connecting shaft and in contact with the inner wall of the filter cartridge.

[0011] The connecting shaft is rotatably matched with the cover plate and the upper end cover.

[0012] A fixed inner cylinder is provided in the oil tank, a first elastic member is provided between the bottom wall of the inner cylinder and the lower end cover to abut against the two, a plurality of first through holes for oil to pass through are provided at the bottom position of the side wall of the inner cylinder, the center of the lower end cover is hollowed out and a second through hole connected to the first through hole is provided on the circumferential surface.

[0013] A second elastic member is disposed between the cover plate and the upper end cover to abut against the two, and a limit clamp spring is installed on the inner wall of the cover plate.

[0014] A sealing ring is provided between the lower end cover and the inner cylinder.

[0015] A bracket is installed on the outer wall of the oil tank.

[0016] A temperature sensor is installed at the bottom of the oil tank.

[0017] The beneficial effects of the utility model are as follows: the technical scheme is used in the hydraulic system, and the oil in the oil tank is filtered when the hydraulic system absorbs oil, which is adapted to the large flow environment, can quickly filter out impurities from the oil to improve the efficiency of the hydraulic system, and adapt to the harsh working environment; the filter device filters the impurities in the oil tank in advance before operation, so that fewer impurities in the oil flow into the hydraulic system, which greatly improves the hydraulic transmission efficiency, makes the hydraulic system more stable and smooth during operation, and reduces the impurity rate of the carrier in the entire hydraulic system, thereby reducing the system failure rate; the filter device, due to its filtering characteristics and the installation of the oil tank, makes the entire hydraulic system and the oil tank more compact, thereby achieving the purpose of saving space, and the installation method is simple, firm and reliable. In addition, the soft scraper of the cleaning component is used to clean the inner wall of the filter cartridge to remove blockages and extend the service life of the filter device, and the removal of the filter device is also very convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the oil suction filter system of an embodiment of the utility model.

[0019] Figure 2 A cross-sectional diagram of the oil suction filter system. DETAILED DESCRIPTION

[0020] The following is a further description of the embodiments of the present invention in conjunction with the accompanying drawings:

[0021] As shown in the figure, an oil suction filter system includes an oil tank 1 and a filtering device installed in the oil tank 1. The oil tank 1 is provided with an oil outlet 2 at the upper end and an oil inlet 3 at the lower end. The filtering device includes:

[0022] The filter cartridge 4 is arranged in the oil tank 1 and has a plurality of filter holes 19 on its circumference;

[0023] An upper end cover 5 is elastically mounted on the upper end of the filter cartridge 4;

[0024] A cover plate 6, which is sleeved on the outer circumference of the upper end cover 5 and is threadedly matched with the inner wall of the oil tank 1;

[0025] A lower end cover 7, which is elastically mounted on the lower end of the filter cartridge 4;

[0026] A cleaning assembly includes a driving member 8 installed on the cover plate 6, a connecting shaft 9 that passes through the cover plate 6 and the upper end cover 5, and a soft scraper 10 installed at the lower end of the connecting shaft 9 and in contact with the inner wall of the filter cartridge 4; this technical solution is used in a hydraulic system to filter the oil in the oil tank when the hydraulic system absorbs oil, adapt to a large flow environment, can quickly filter out impurities from the oil to improve the efficiency of the hydraulic system, and adapt to harsh working environments; before the filter device is operated, the impurities in the oil tank are filtered in advance, so that fewer impurities in the oil flow into the hydraulic system, which greatly improves the hydraulic transmission efficiency, makes the hydraulic system more stable and smooth during operation, and reduces the impurity rate of the carrier in the entire hydraulic system, thereby reducing the system failure rate; due to its filtering characteristics and the installation of the oil tank, the filter device makes the entire hydraulic system and the oil tank more compact, thereby achieving the purpose of saving space, and the installation method is simple, firm and reliable. In addition, the inner wall of the filter cartridge is cleaned by the soft scraper of the cleaning assembly to remove blockages and extend the service life of the filter device, and the removal of the filter device is also very convenient.

[0027] The connecting shaft 9 is respectively rotatably matched with the cover plate 6 and the upper end cover 5, and a sealing ring structure is adopted to prevent leakage.

[0028] The oil tank 1 is provided with a fixedly mounted inner cylinder 11, a first elastic member 12 is provided between the bottom wall of the inner cylinder 11 and the lower end cover 7 to abut against the two, a plurality of first through holes 13 for oil to pass through are provided at the bottom position of the side wall of the inner cylinder 11, the center of the lower end cover 7 is hollowed out and a second through hole 14 connected to the first through hole 13 is provided on the circumferential surface, the oil enters from the oil inlet of the oil tank, enters the inner wall of the filter cartridge through the first through hole and the second through hole, and is finally discharged from the oil outlet of the oil tank.

[0029] A second elastic member 15 is provided between the cover plate 6 and the upper end cover 5 to abut against the two. A limit spring 16 is installed on the inner wall of the cover plate 6 to limit the upper cover. In addition, a second elastic member is provided between the cover plate 6 and the upper end cover 5 to form an elastic connection between the cover plate 6 and the upper end cover 5.

[0030] A sealing ring 17 is provided between the lower end cover 7 and the inner cylinder 11 to prevent oil from flowing out from the gap between the inner cylinder and the filter cylinder, thereby affecting the filtering effect.

[0031] A bracket 18 is installed on the outer wall of the oil tank 1 for easy installation.

[0032] A temperature sensor 20 is installed at the bottom of the oil tank 1 to facilitate the detection of the real-time oil temperature in the oil tank.

[0033] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0034] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. In addition, in the description of the present utility model, unless otherwise specified, "plurality" means two or more.

[0035] Technical personnel should note: Although the utility model has been described according to the above specific implementation methods, the utility model concept is not limited to this utility model. Any modification using the utility model concept will be included in the scope of protection of this patent.

Claims

1. An oil suction filter system, comprising an oil tank (1) and a filtering device installed in the oil tank (1), wherein the oil tank (1) is provided with an oil outlet (2) at the upper end and an oil inlet (3) at the lower end, characterized in that: The filtering device comprises: A filter cartridge (4) disposed in the oil tank (1) and having a plurality of filter holes (19) on its circumference; An upper end cover (5) is elastically mounted on the upper end of the filter cartridge (4); A cover plate (6) which is sleeved on the outer circumference of the upper end cover (5) and is threadably matched with the inner wall of the oil tank (1); A lower end cover (7) which is elastically mounted on the lower end of the filter cartridge (4); A cleaning assembly comprises a driving member (8) mounted on a cover plate (6), a connecting shaft (9) penetrating the cover plate (6) and an upper end cover (5), and a soft scraper (10) mounted on the lower end of the connecting shaft (9) and in contact with the inner wall of the filter cartridge (4).

2. The oil suction filter system according to claim 1, characterized in that: The connecting shaft (9) is in sealed rotational engagement with the cover plate (6) and the upper end cover (5).

3. The oil suction filter system according to claim 1, characterized in that: The oil tank (1) is provided with a fixed inner cylinder (11), a first elastic member (12) is provided between the bottom wall of the inner cylinder (11) and the lower end cover (7) to abut against the two, a plurality of first through holes (13) for oil to pass through are provided at the bottom of the side wall of the inner cylinder (11), and the lower end cover (7) is hollowed out at the center and provided with second through holes (14) in communication with the first through holes (13) on the circumferential surface.

4. The oil suction filter system according to claim 1, characterized in that: A second elastic member (15) is provided between the cover plate (6) and the upper end cover (5) to abut against the two, and a limit clamping spring (16) is installed on the inner wall of the cover plate (6).

5. The oil suction filter system according to claim 3, characterized in that: A sealing ring (17) is provided between the lower end cover (7) and the inner cylinder (11).

6. The oil suction filter system according to claim 1, characterized in that: A bracket (18) is installed on the outer wall of the oil tank (1).

7. The oil suction filter system according to claim 1, characterized in that: A temperature sensor (20) is installed at the bottom of the oil tank (1).

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