Oil tank of hydraulic system

Abstract

The utility model discloses an oil tank of a hydraulic system, which relates to the technical field of hydraulic equipment and comprises a tank body and a filter plate arranged in the tank body, and the filter plate divides the internal space of the tank body into at least two cavities; the inlet and outlet assembly is used for sending hydraulic oil out of the box body or returning the hydraulic oil to the box body; and a cleaning assembly for cleaning the inner wall of the cavity is arranged in each cavity. The starting driving part is arranged to drive the cleaning scraper to move relative to the inner wall of the cavity, oil dirt is scraped and falls into the surface of the cleaning scraper, the sieve holes in the surface of the cleaning scraper can play a role in filtering oil dirt impurities, so that the oil dirt impurities are layered on the upper portion, and hydraulic oil at the bottom is kept pure; and after the cleaning scraper reaches the cleaning window, the sealing assembly is opened, and the cleaning scraper is cleaned through the cleaning tool, so that the interior of the hydraulic oil tank can be cleaned under the condition that the use of the hydraulic oil tank is not influenced.

Description

Technical Field

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

[0002] The hydraulic oil tank is a component of the hydraulic system. Its main functions are: storing the oil required for system circulation, dissipating the heat generated when the system is working, releasing the gas mixed in the oil, dissipating heat and separating foam and impurities in the oil.

[0003] The current technical problems are: when the hydraulic system is working, some impurities in the actuator will circulate into the hydraulic oil tank along with the hydraulic oil. As time accumulates, these impurities are deposited at the bottom of the tank. If they are not cleaned in time, the oil circuit will be blocked. At present, most tanks generally adopt a closed design to ensure sealing, which makes disassembly and cleaning more inconvenient, and the cleaning must be carried out when the hydraulic tank is in a non-working state (shutdown state). Therefore, tank cleaning is not only a large workload, but also affects the working efficiency of the hydraulic system. Utility Model Content

[0004] The purpose of the present utility model is to provide an oil tank for a hydraulic system, so as to solve the technical problem raised in the above background art that the hydraulic oil tank in the current market needs to be cleaned in a non-working state, thereby affecting the working efficiency.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: an oil tank for a hydraulic system, comprising:

[0006] A box body and a filter plate arranged in the box body, wherein the filter plate divides the internal space of the box body into at least two chambers;

[0007] an inlet and outlet assembly for sending hydraulic oil out of the box or returning it to the box;

[0008] Each of the chambers is provided with a cleaning assembly for cleaning the inner wall of the chamber, and the cleaning assembly comprises:

[0009] A cleaning scraper with mesh holes, the cleaning scraper matching the shape of the corresponding chamber;

[0010] a driving member for driving the cleaning blade to move relative to the inner wall of the chamber;

[0011] A cleaning window is provided on the surface of the box;

[0012] A closure assembly is provided for sealing the cleaning window.

[0013] As a preferred technical solution of the present invention, the inlet and outlet components include:

[0014] An oil outlet and an oil return port are provided at the upper end of the box body, and the oil outlet and the oil return port are connected to different chambers respectively;

[0015] an oil outlet pipe connected to the oil outlet;

[0016] An oil return pipe connected to the oil return port.

[0017] As a preferred technical solution of the present utility model, the driving component includes:

[0018] a movable support plate connected to the cleaning blade;

[0019] A motor and a screw rod with one end connected to the output shaft of the motor, the other end of the screw rod cooperates with the screw rod groove opened on the surface of the movable support plate, the cleaning scraper is provided with a first through groove at the position where it contacts the screw rod, the movable support plate is provided with a through groove on its surface for the oil outlet pipe to pass through, and the cleaning scraper is provided with a second through groove on its surface for the oil outlet pipe to pass through.

[0020] As a preferred technical solution of the present invention, the movable support plate is detachably connected to the cleaning scraper, and the size of the cleaning window is greater than or equal to the maximum length of the cleaning scraper.

[0021] As a preferred technical solution of the present invention, a slider is provided at the lower end of the cleaning scraper, and the slider cooperates with a slide groove provided at the upper end of the movable support plate.

[0022] As a preferred technical solution of the present invention, the first through groove and the second through groove are both strip grooves, and the strip groove extends along the length direction of the slider and forms a notch.

[0023] As a preferred technical solution of the present invention, the setting height of the cleaning window exceeds the maximum liquid level height of the chamber.

[0024] As a preferred technical solution of the present utility model, the closure assembly includes:

[0025] a sealing plate matching the shape of the cleaning window;

[0026] One end of the bolt passes through a first bolt hole provided on the surface of the sealing plate, and one end of the bolt is screwed into a second bolt hole provided on the surface of the box body.

[0027] As a preferred technical solution of the present invention, the motor is arranged at the upper end of the outer portion of the box body, and one end of the screw rod passes through a screw rod hole provided at the upper end of the box body.

[0028] As a preferred technical solution of the present invention, a liquid level gauge is provided on the outside of the box body, an oil filling port is opened at the upper end of the box body, and a sealing cover is connected to the oil filling port.

[0029] Compared with the prior art, the beneficial effects of the present invention are:

[0030] The utility model provides a starting drive component to drive the cleaning scraper to move relative to the inner wall of the chamber, so that the oil and dirt are scraped off and fall onto the surface of the cleaning scraper. The sieve holes on the surface of the cleaning scraper can filter the oil and dirt impurities, so that the oil and dirt impurities are layered on the upper part, and the hydraulic oil at the bottom is kept pure. When the cleaning scraper reaches the cleaning window, the closing component is opened and the cleaning scraper is cleaned by the cleaning tool, so that the interior of the hydraulic oil tank can be cleaned without affecting the use of the hydraulic oil tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic diagram of the external three-dimensional structure of the utility model;

[0032] Figure 2 This is a schematic diagram of a half-cut three-dimensional structure of the box body of the present invention;

[0033] Figure 3 This is a schematic diagram of the three-dimensional structure of the cleaning scraper and the movable support plate of the utility model;

[0034] Figure 4 It is a schematic diagram of the side-section three-dimensional structure of the box body of the present invention.

[0035] In the figure: 1. Box body; 2. Oil outlet; 3. Oil return port; 4. Oil outlet pipe; 5. Oil return pipe; 6. Oil filling port; 7. Sealing cover; 8. Filter plate; 9. Cleaning scraper; 10. Sieve hole; 11. Movable support plate; 12. Slider; 13. Slide; 14. Motor; 15. Screw; 16. Screw groove; 17. First through groove; 18. Through groove; 19. Second through groove; 20. Cleaning window; 21. Sealing plate; 22. Bolt; 23. First bolt hole; 24. Second bolt hole; 25. Screw hole; 26. Liquid level gauge; 27. Through hole. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0037] See also Figure 1-4 The utility model provides a technical solution: an oil tank of a hydraulic system, comprising:

[0038] A box body 1 and a filter plate 8 arranged in the box body 1, wherein the filter plate 8 divides the internal space of the box body 1 into at least two chambers;

[0039] Inlet and outlet components for sending hydraulic oil out of the box 1 or returning the hydraulic oil to the box 1;

[0040] Each chamber is provided with a cleaning assembly for cleaning the inner wall of the chamber, and the cleaning assembly includes:

[0041] A cleaning blade 9 with mesh holes 10 is provided, and the cleaning blade 9 matches the shape of the corresponding chamber;

[0042] A driving member for driving the cleaning blade 9 to move relative to the inner wall of the chamber;

[0043] A cleaning window 20 is provided on the surface of the housing 1;

[0044] A closure assembly for sealing the cleaning window 20;

[0045] The above technical solution can realize the non-stop cleaning of the chamber inner wall. When the inner wall and bottom of the chamber have accumulated a lot of oil and dirt impurities, the driving component can be started to drive the cleaning scraper 9 to move relative to the inner wall of the chamber. Specifically, the cleaning scraper 9 moves upward from the bottom of the chamber. Since the cleaning scraper 9 is fully in contact with the inner wall of the chamber, when the cleaning scraper 9 moves, its surface will come into contact with the oil and dirt on the inner wall of the chamber. The cleaning scraper 9 scrapes the oil and dirt that falls onto its surface. Since the surface of the cleaning scraper 9 is provided with a sieve hole 10, it can filter out the oil and dirt impurities. Only hydraulic oil can pass through the sieve hole 10, thereby separating the oil and dirt impurities into layers. The hydraulic oil at the top and bottom remains pure. When the cleaning scraper 9 reaches the cleaning window 20, the closing component is opened and the cleaning scraper 9 is cleaned by a cleaning tool. After cleaning, the closing component is closed to block the cleaning window 20, so that the interior of the hydraulic oil tank can be cleaned without affecting the use of the hydraulic oil tank. As a possible situation, in order to facilitate the cleaning scraper 9 to better clean the oil stains on the inner wall of the chamber, the four sides of the cleaning scraper 9 can be set to sharp protrusions, and the middle part of the cleaning scraper 9 is concave. With this structure, the sharp protrusion structure can be used to scrape off the oil stains, and the oil stains fall into the concave place for storage.

[0046] like Figure 1 and Figure 4 As shown, in this embodiment, the inlet and outlet components include: an oil outlet 2 and an oil return port 3 opened at the upper end of the box body 1, the oil outlet 2 and the oil return port 3 being connected to different chambers respectively; an oil outlet pipe 4 connected to the oil outlet 2; an oil return pipe 5 connected to the oil return port 3; a liquid level gauge 26 is provided on the outside of the box body 1, and an oil filling port 6 is opened at the upper end of the box body 1, and the oil filling port 6 is connected to a cover 7;

[0047] The above technical solution can be used to conveniently connect the hydraulic oil tank to the actuator. When in use, the oil outlet pipe 4 is connected to the oil filling end of the actuator through a pump, and the oil return pipe 5 is connected to the oil outlet end of the actuator. The hydraulic oil with impurities returned from the actuator enters the right chamber and then flows into the left chamber through the filter plate 8 to filter the hydraulic oil. The liquid level meter 26 can help to understand the oil amount in the hydraulic oil tank from the outside, and the oil filling port 6 can facilitate the replenishment of hydraulic oil.

[0048] like Figure 2 、 Figure 3 and Figure 4 As shown, in this embodiment, the driving component includes: a movable support plate 11 connected to the cleaning scraper 9; a motor 14 and a screw rod 15 having one end connected to the output shaft of the motor 14, the other end of the screw rod 15 cooperates with a screw rod groove 16 provided on the surface of the movable support plate 11, the cleaning scraper 9 is provided with a first through groove 17 at the position where it contacts the screw rod 15, the movable support plate 11 is provided with a through groove 18 on its surface for the oil outlet pipe 4 to pass through, the cleaning scraper 9 is provided with a second through groove 19 on its surface for the oil outlet pipe 4 to pass through, and the surface of the movable support plate 11 is provided with a through hole 27 connected to the sieve hole 10;

[0049] The above technical solution can drive the cleaning scraper 9 to move. When in use, start the motor 14, the motor 14 drives the screw rod 15 to rotate, the screw rod 15 cooperates with the screw rod groove 16 to drive the movable support plate 11 to move upward, and the movable support plate 11 drives the cleaning scraper 9 connected to it to move upward synchronously, so that the cleaning scraper 9 can clean the oil stains attached to the inside of the chamber.

[0050] like Figure 3 As shown, in this embodiment, the movable support plate 11 is detachably connected to the cleaning scraper 9; specifically, a slider 12 is provided at the lower end of the cleaning scraper 9, and the slider 12 cooperates with a slide groove 13 provided at the upper end of the movable support plate 11; the first through groove 17 and the second through groove 19 are both strip grooves, which extend along the length direction of the slider 12 and form a notch;

[0051] The above technical solution can facilitate the disassembly of the cleaning scraper 9. When the cleaning scraper 9 needs to be disassembled, the slider 12 at the bottom of the cleaning scraper 9 is pulled to disengage the slide groove 13 on the surface of the movable support plate 11, thereby separating the cleaning scraper 9 from the movable support plate 11. The first through groove 17 and the second through groove 19 can prevent the cleaning scraper 9 from being unable to move due to interference between the screw rod 15 and the oil outlet pipe 4.

[0052] like Figure 4 As shown, in this embodiment, the size of the cleaning window 20 is greater than or equal to the maximum length of the cleaning blade 9, and the setting height of the cleaning window 20 exceeds the maximum liquid level height of the chamber;

[0053] The above technical solution can facilitate the removal of the cleaning blade 9 from the cleaning window 20 . The height of the cleaning window 20 is not lower than the maximum liquid level of the chamber, which can prevent the hydraulic oil from leaking when the cleaning window 20 is opened.

[0054] like Figure 4 As shown, in this embodiment, the sealing assembly includes: a sealing plate 21 that matches the shape of the cleaning window 20; a bolt 22, one end of which passes through a first bolt hole 23 formed on the surface of the sealing plate 21, and one end of the bolt 22 is screwed into a second bolt hole 24 formed on the surface of the box body 1;

[0055] The above technical solution can facilitate opening the cleaning window 20 , and the sealing plate 21 can be removed from the cleaning window 20 by removing the bolts 22 from the first bolt holes 23 and the second bolt holes 24 using a tool.

[0056] like Figure 2 and Figure 4 As shown, in this embodiment, the motor 14 is arranged at the upper end of the outer casing 1, and one end of the screw rod 15 passes through the screw rod hole 25 opened at the upper end of the casing 1;

[0057] The above technical solution can prevent the motor 14 from being contaminated by the hydraulic oil, and the motor 14 is arranged outside to help increase its service life.

[0058] Working principle: When in use, the oil outlet pipe 4 is connected to the oil filling end of the actuator through the pump, and the oil return pipe 5 is connected to the oil outlet end of the actuator. The hydraulic oil with impurities returned from the actuator enters the right chamber and flows into the left chamber through the filter plate 8 to filter the hydraulic oil. The liquid level meter 26 can help to understand the oil level in the hydraulic oil tank from the outside, and the oil filling port 6 can facilitate the replenishment of hydraulic oil. When there are more oil impurities accumulated on the inner wall and bottom of the chamber, start the motor 14, and the motor 14 drives the screw rod 15 to rotate. The screw rod 15 cooperates with the screw rod groove 16 to drive the movable support plate 11 to move up, and the movable support plate 11 drives the cleaning scraper 9 connected to it to move up synchronously, so that the cleaning scraper 9 cleans the oil attached to the inside of the chamber. Since the cleaning scraper 9 is fully in contact with the inner wall of the chamber, when the cleaning scraper 9 moves, its surface The surface will come into contact with the oil stains on the inner wall of the chamber, and the cleaning scraper 9 will scrape the oil stains off and drop them onto its surface. Since the surface of the cleaning scraper 9 is provided with a sieve hole 10, it can filter out the oil stains and impurities. Only the hydraulic oil can pass through the sieve hole 10, thereby stratifying the oil stains and impurities on the upper part, and the hydraulic oil at the bottom remains pure. When the cleaning scraper 9 reaches the cleaning window 20, use a tool to remove the bolt 22 from the first bolt hole 23 and the second bolt hole 24, and then the sealing plate 21 can be removed from the cleaning window 20. Pull the cleaning scraper 9 to disengage the slider 12 at its bottom from the slide groove 13 on the surface of the movable support plate 11, so that the cleaning scraper 9 can be separated from the movable support plate 11, and the cleaning scraper 9 can be removed from the cleaning window 20. The first through groove 17 and the second through groove 19 can prevent the cleaning scraper 9 from being unable to move due to the interference of the screw rod 15 and the oil outlet pipe 4.

[0059] Thereby completing a series of tasks, the contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0060] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A hydraulic system oil tank, comprising: A box body (1) and a filter plate (8) arranged in the box body (1), wherein the filter plate (8) divides the internal space of the box body (1) into at least two chambers; An inlet and outlet assembly for sending hydraulic oil out of the box (1) or returning the hydraulic oil to the box (1); It is characterized in that each of the chambers is provided with a cleaning assembly for cleaning the inner wall of the chamber, and the cleaning assembly includes: A cleaning scraper (9) provided with a sieve hole (10), wherein the cleaning scraper (9) matches the shape of the corresponding chamber; a driving component for driving the cleaning scraper (9) to move relative to the inner wall of the chamber; a cleaning window (20) provided on the surface of the box (1); A closure assembly for sealing the cleaning window (20).

2. The oil tank of the hydraulic system according to claim 1, characterized in that The inlet and outlet components include: An oil outlet (2) and an oil return port (3) are provided at the upper end of the box body (1), and the oil outlet (2) and the oil return port (3) are respectively connected to different chambers; an oil outlet pipe (4) connected to the oil outlet (2); An oil return pipe (5) connected to the oil return port (3).

3. The oil tank of the hydraulic system according to claim 2, characterized in that: The driving component includes: a movable support plate (11) connected to the cleaning scraper (9); A motor (14) and a screw rod (15) having one end connected to the output shaft of the motor (14); the other end of the screw rod (15) cooperates with a screw rod groove (16) provided on the surface of the movable support plate (11); the cleaning scraper (9) is provided with a first through groove (17) at a position where it contacts the screw rod (15); the movable support plate (11) is provided with a through groove (18) on its surface for the oil outlet pipe (4) to pass through; and the cleaning scraper (9) is provided with a second through groove (19) on its surface for the oil outlet pipe (4) to pass through.

4. The oil tank of the hydraulic system according to claim 3, characterized in that The movable support plate (11) is detachably connected to the cleaning scraper (9), and the size of the cleaning window (20) is greater than or equal to the maximum length of the cleaning scraper (9).

5. The oil tank of the hydraulic system according to claim 4, characterized in that: A slider (12) is provided at the lower end of the cleaning scraper (9), and the slider (12) cooperates with a slide groove (13) provided at the upper end of the movable support plate (11).

6. The oil tank of the hydraulic system according to claim 5, characterized in that The first through groove (17) and the second through groove (19) are both strip grooves, and the strip grooves extend along the length direction of the slider (12) and form a notch.

7. The oil tank of the hydraulic system according to claim 1, characterized in that The setting height of the cleaning window (20) exceeds the maximum liquid level height of the chamber.

8. The oil tank of the hydraulic system according to claim 7, characterized in that: The closure assembly comprises: a sealing plate (21) matching the shape of the cleaning window (20); One end of the bolt (22) passes through a first bolt hole (23) provided on the surface of the sealing plate (21), and one end of the bolt (22) is screwed into a second bolt hole (24) provided on the surface of the box body (1).

9. The oil tank of the hydraulic system according to claim 3, characterized in that: The motor (14) is arranged at the upper end of the outer portion of the box body (1), and one end of the screw rod (15) passes through a screw rod hole (25) provided at the upper end of the box body (1).

10. The oil tank of the hydraulic system according to any one of claims 1 to 9, characterized in that: A liquid level gauge (26) is provided on the outside of the box body (1), an oil filling port (6) is provided at the upper end of the box body (1), and the oil filling port (6) is connected to a sealing cover (7).

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