Grease filtering device of hydraulic system

Abstract

The utility model relates to a grease filtering device for a hydraulic system, which comprises a tank body, a filter element, a filter element and a filter element, wherein an oil inlet and an oil outlet are respectively formed in two ends of the tank body; the filter plate is connected to the inner wall of the tank body, and the filter plate is configured to divide the tank body into a first cavity and a second cavity in the radial direction; the first connecting shaft is rotatably connected to the middle of the filter plate, the end, located in the first cavity, of the first connecting shaft is fixedly connected with a first scraping plate, and the end, located in the second cavity, of the first connecting shaft is fixedly connected with a plurality of rotating blades; and the at least one second connecting shaft is rotatably connected to the filter plate, the second connecting shaft and the first connecting shaft are arranged at an interval, one end, located in the first cavity, of the second connecting shaft is fixedly connected with a second scraping plate, and the first scraping plate is configured to be in contact with the second scraping plate and drive the second scraping plate to rotate when rotating around the first connecting shaft. Thus, through cooperative use of the first scraping plate and the second scraping plate, impurities on the filter screen plate can be scraped, and the scraping effect of the device is improved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of hydraulic systems, and in particular to a grease filtering device for a hydraulic system. Background Art

[0002] The hydraulic system is a very important component of large machinery such as presses, construction machinery, steam turbines, etc. The hydraulic system provides power for the equipment. During the operation of the hydraulic system, as the hydraulic oil is circulated in the hydraulic system, solid impurities in the hydraulic system enter the hydraulic oil. The hydraulic oil containing solid impurities can easily cause the hydraulic pump, hydraulic valve, cylinder and other components in the hydraulic system to wear the working surface, causing leakage, valve jamming, etc., resulting in reduced working efficiency of the hydraulic system and affecting the normal operation of the equipment.

[0003] In the related art, a hydraulic oil filter device is used to filter the hydraulic oil, but impurities will adhere to the filter screen, and the long-term accumulation of impurities will greatly affect the filtering effect of the filter screen. Utility Model Content

[0004] The purpose of the present disclosure is to provide a grease filtering device for a hydraulic system to at least partially solve the problems existing in the related art.

[0005] In order to achieve the above object, the present disclosure provides a hydraulic system grease filtering device, comprising:

[0006] A tank body, wherein two ends of the tank body are respectively provided with an oil inlet and an oil outlet;

[0007] A filter plate connected to the inner wall of the tank body, wherein the filter plate is configured to radially divide the tank body into a first cavity and a second cavity, wherein the oil inlet is located at an end of the first cavity, and the oil outlet is located at an end of the second cavity;

[0008] A first connecting shaft is rotatably connected to the middle of the filter plate, one end of the first connecting shaft located in the first cavity is fixedly connected to a first scraper, a side wall of the first scraper contacts the filter plate, and one end of the first connecting shaft located in the second cavity is fixedly connected to a plurality of rotating blades; and

[0009] At least one second connecting shaft is rotatably connected to the filter plate, the second connecting shaft is spaced apart from the first connecting shaft, a second scraper is fixedly connected to one end of the second connecting shaft located in the first cavity, a side wall of the second scraper is in contact with the filter plate, and the first scraper is configured to contact the second scraper when rotating around the first connecting shaft and drive the second scraper to rotate.

[0010] Optionally, a torsion spring is sleeved on one end of the second connecting shaft located in the second cavity, one end of the torsion spring is fixedly connected to the filter plate, and the other end is fixed to the second connecting shaft.

[0011] Optionally, the first scraper and the second scraper are respectively constructed as long strips, the first scraper has a first section located on one side of the first connecting axis and a second section located on the other side of the first connecting axis, the first section and the second section have the same length, the second scraper has a third section located on one side of the second connecting axis and a fourth section located on the other side of the second connecting axis, the length of the third section is greater than the length of the fourth section.

[0012] Optionally, the filter plate is rotatably connected to a plurality of the second connecting shafts, and the plurality of the second connecting shafts are arranged at intervals along the circumference of the filter plate.

[0013] Optionally, a receiving groove is provided at the bottom of the first cavity of the tank body near the filter plate, a collecting box is detachably connected to the receiving groove, and the top end of the collecting box is opened.

[0014] Optionally, an opening is provided at the bottom of the tank body at a position corresponding to the collecting box, the bottom of the collecting box passes through the opening and is fixedly connected with a sealing gasket, the sealing gasket is configured to be able to be attached to the outer wall of the tank body and completely cover the opening, and the collecting box is movably installed in the accommodating groove along the radial direction of the tank body.

[0015] Optionally, a handle is fixedly connected to the outer wall of the sealing gasket.

[0016] Optionally, one end of the filter plate located in the second cavity is fixedly connected with an arc-shaped guide plate bent toward the rotating blade, and the arc-shaped guide plate is located above the rotating blade.

[0017] Optionally, a wedge block is fixedly connected to one end of the filter plate located in the second cavity, a connecting rod is rotatably connected to the side wall of the first connecting shaft located in the second cavity, the connecting rod can rotate around its own central axis, and a knocking ball is fixedly connected to one end of the connecting rod away from the first connecting shaft, the knocking ball is configured to contact and pass over the wedge block when the first connecting shaft rotates, and an elastic member is fixedly connected between the side wall of the first connecting shaft and the connecting rod.

[0018] Optionally, a plurality of the wedge blocks are fixedly connected to the filter plate, and the plurality of the wedge blocks are arranged at intervals along the circumference of the filter plate.

[0019] Through the above technical solution, when it is necessary to scrape the impurities on the filter plate, the hydraulic system is started to allow the oil circulation inside the tank to drive the rotating blades to rotate. The rotation of the rotating blades causes the first connecting shaft to drive the first scraper to rotate, thereby causing the first scraper to scrape the impurities on the filter plate. When the first scraper rotates to contact the second scraper, the rotation of the second scraper drives the second connecting shaft to rotate, thereby causing the second scraper to further scrape the filter plate, thereby avoiding incomplete scraping and improving the scraping effect of the device.

[0020] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0022] Figure 1 is a structural schematic diagram of a hydraulic system grease filtering device provided by an exemplary embodiment of the present disclosure;

[0023] Figure 2 is a schematic diagram of the internal structure of a grease filter device for a hydraulic system provided by an exemplary embodiment of the present disclosure;

[0024] Figure 3 is a schematic diagram of the internal structure of a hydraulic system grease filter device provided by an exemplary embodiment of the present disclosure from another angle;

[0025] Figure 4 yes Figure 3 A partial enlarged view of middle A.

[0026] Description of Reference Numerals

[0027] 1-tank body; 11-oil inlet; 12-oil outlet; 101-first cavity; 102-second cavity; 2-filter plate; 3-first connecting shaft; 31-first scraper; 32-rotating blade; 4-second connecting shaft; 41-second scraper; 42-torsion spring; 5-accommodating groove; 51-collecting box; 52-sealing pad; 53-handle; 6-arc guide plate; 7-wedge block; 81-connecting rod; 82-knocking ball; 83-elastic member; 91-fixing seat; 92-fixing hole DETAILED DESCRIPTION

[0028] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0029] In the present disclosure, unless otherwise stated, the directional terms "upper", "lower", "top", and "bottom" are defined based on the directions in which the relevant components are actually used. "Inside" and "outside" refer to the contours of the corresponding components themselves. The terms "first", "second", etc. are used to distinguish different components and do not have order or importance. In the present disclosure, when the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0030] Reference Figures 1 to 4 The present disclosure provides a grease filter device for a hydraulic system, which may include a tank body 1, a filter plate 2, a first connecting shaft 3 and at least one second connecting shaft 4, wherein an oil inlet 11 and an oil outlet 12 are respectively provided at both ends of the tank body 1; the filter plate 2 is connected to the inner wall of the tank body 1, and the filter plate 2 can be configured to divide the tank body 1 into a first cavity 101 and a second cavity 102 along the radial direction, wherein the oil inlet 11 is located at the end of the first cavity 101, and the oil outlet 12 is located at the end of the second cavity 102; the first connecting shaft 3 is rotatably connected to the middle of the filter plate 2, and the first connecting shaft 3 is A first scraper 31 is fixedly connected to one end of the first cavity 101, and the side wall of the first scraper 31 is in contact with the filter plate 2. A plurality of rotating blades 32 are fixedly connected to one end of the first connecting shaft 3 located in the second cavity 102. The second connecting shaft 4 is rotatably connected to the filter plate 2, and the second connecting shaft 4 is spaced apart from the first connecting shaft 3. A second scraper 41 is fixedly connected to one end of the second connecting shaft 4 located in the first cavity 101, and the side wall of the second scraper 41 is in contact with the filter plate 2. The first scraper 31 is configured to contact the second scraper 41 when rotating around the first connecting shaft 3, and drive the second scraper 41 to rotate.

[0031] Through the above technical solution, when it is necessary to scrape the impurities on the filter plate, the hydraulic system is started to allow the oil circulation inside the tank to drive the rotating blades to rotate. The rotation of the rotating blades causes the first connecting shaft to drive the first scraper to rotate, thereby causing the first scraper to scrape the impurities on the filter plate. When the first scraper rotates to contact the second scraper, the rotation of the second scraper drives the second connecting shaft to rotate, thereby causing the second scraper to further scrape the filter plate, thereby avoiding incomplete scraping and improving the scraping effect of the device.

[0032] Further, refer to Figure 3 , one end of the second connecting shaft 4 located in the second cavity 102 may be sleeved with a torsion spring 42, one end of the torsion spring 42 is fixedly connected to the filter plate 2, and the other end is fixed to the second connecting shaft 4. The rotation of the second connecting shaft 4 causes the torsion spring 42 to deform and generate a torsion force, and when the first scraper 31 is out of contact with the second scraper 41, the torsion spring 42 rebounds and resets, so that the second connecting shaft 4 drives the second scraper 41 to rotate in the opposite direction and reset.

[0033] Specifically, refer to Figure 2 The first scraper 31 and the second scraper 41 can be respectively constructed as long strips. The first scraper 31 has a first section located on one side of the first connecting shaft 3 and a second section located on the other side of the first connecting shaft 3. The length of the first section is the same as that of the second section. The second scraper 41 has a third section located on one side of the second connecting shaft 4 and a fourth section located on the other side of the second connecting shaft 4. The length of the third section is greater than that of the fourth section. When the first scraper 31 contacts the second scraper 41, it can drive the second scraper 41 to rotate. When the first scraper 31 is separated from the second scraper 41, the second scraper can be reset under the action of the torsion spring 42. It is only necessary to make the third section of the second scraper 41 contact the first scraper 31. The fourth section does not need to be set too long, so that the second connecting shaft 4 can be installed at a position close to the edge of the filter plate 2, the scraping coverage is wider, and the fourth section will not extend out of the edge of the filter plate when rotating.

[0034] In some embodiments, the filter plate 2 is rotatably connected to a plurality of second connecting shafts 4, which are arranged at intervals along the circumference of the filter plate 2. The present disclosure does not limit the number of second connecting shafts 4 and second scrapers 41, which are within the protection scope of the present disclosure.

[0035] As an exemplary embodiment of the present disclosure, refer to Figure 2 The bottom of the first cavity 101 of the tank body 1 near the filter plate 2 may be provided with a receiving groove 5, and a collecting box 51 may be detachably connected to the receiving groove 5, and the top of the collecting box 51 is opened. The collecting box 51 can collect impurities on the filter plate 2, so as to facilitate the staff to handle the impurities.

[0036] Further, refer to Figure 2 The bottom of the tank body 1 is provided with an opening at a position corresponding to the collection box 51. The bottom of the collection box 51 passes through the opening and is fixedly connected with a sealing gasket 52. The sealing gasket 52 is configured to be attached to the outer wall of the tank body 1 and completely cover the opening. The collection box 51 is movably installed at the receiving groove 5 along the radial direction of the tank body 1. The size of the sealing gasket 52 is larger than the opening. The sealing gasket 52 can make the collection box 51 and the tank body 1 more tightly connected, and prevent the grease inside the tank body 1 from flowing out from the gap between the collection box 51 and the tank body 1, thereby improving the sealing effect of the device. Specifically, the sealing gasket 52 can be detachably connected to the outer wall of the tank body 1 by a fastener.

[0037] Further, refer to Figure 2 A handle 53 is fixedly connected to the outer wall of the sealing gasket 52, and the handle 53 is convenient for the staff to pull the collection box 51 to pour out the impurities.

[0038] In some embodiments, reference Figure 3One end of the filter plate 2 located in the second cavity 102 can be fixedly connected with an arc-shaped guide plate 6 bent toward the rotating blade 32, and the arc-shaped guide plate 6 is located above the rotating blade 32. By installing the arc-shaped guide plate 6 on the filter plate 2, the circulating grease can be guided to a certain extent, thereby making the rotating blade 32 rotate more powerfully, thereby improving the use effect of the device.

[0039] According to an exemplary embodiment of the present disclosure, Figure 3 , Figure 4 , one end of the filter plate 2 located in the second cavity 102 is fixedly connected with a wedge block 7, the side wall of the first connecting shaft 3 located in the second cavity 102 is rotatably connected with a connecting rod 81, the connecting rod 81 can rotate around its own central axis, the end of the connecting rod 81 away from the first connecting shaft 3 is fixedly connected with a knocking ball 82, the knocking ball 82 is configured to be able to contact with the wedge block 7 and pass over the wedge block 7 when the first connecting shaft 3 rotates, and an elastic member 83 is fixedly connected between the side wall of the first connecting shaft 3 and the connecting rod 81. Specifically, the elastic member 83 can be a spring. By using the knocking ball 82 in conjunction with the wedge block 7, the first connecting shaft 3 rotates while the connecting rod 81 drives the knocking ball 82 to rotate around the first connecting shaft 3. When the knocking ball 82 contacts the wedge block 7, the knocking ball 82 rotates along the surface of the wedge block 7 around the first connecting shaft 3 while also rotating around its own center, thereby driving the connecting rod 81 to rotate around its own central axis. The rotation of the connecting rod 81 causes the elastic member 83 to be stressed and generate elastic force. When the knocking ball 82 loses contact with the wedge block 7, the elastic member 83 rebounds and resets, causing the connecting rod 81 to drive the knocking ball 82 to rotate in the opposite direction and reset, thereby causing the knocking ball 82 to knock on the filter plate 2, thereby causing the filter plate 2 to vibrate to a certain extent, thereby avoiding the accumulation of impurities on the filter plate 2 to a certain extent, improving the vibration effect of the device, and thereby avoiding the occurrence of incomplete scraping.

[0040] Specifically, refer to Figure 3 A plurality of wedge blocks 7 are fixedly connected to the filter plate 2, and the plurality of wedge blocks 7 are arranged at intervals along the circumference of the filter plate 2. The present disclosure does not limit the number of the wedge blocks 7, and all of them belong to the protection scope of the present disclosure.

[0041] In addition, refer to Figure 1 The outer wall of the tank body 1 can be fixed with multiple fixing seats 91 by bolts, and a fixing hole 92 is opened on one side of the fixing seat 91 to facilitate the staff to install and fix the device.

[0042] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0043] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0044] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A grease filter device for a hydraulic system, characterized in that: include: A tank body, wherein two ends of the tank body are respectively provided with an oil inlet and an oil outlet; A filter plate connected to the inner wall of the tank body, wherein the filter plate is configured to radially divide the tank body into a first cavity and a second cavity, wherein the oil inlet is located at an end of the first cavity, and the oil outlet is located at an end of the second cavity; A first connecting shaft is rotatably connected to the middle of the filter plate, one end of the first connecting shaft located in the first cavity is fixedly connected to a first scraper, a side wall of the first scraper contacts the filter plate, and one end of the first connecting shaft located in the second cavity is fixedly connected to a plurality of rotating blades; and At least one second connecting shaft is rotatably connected to the filter plate, the second connecting shaft is spaced apart from the first connecting shaft, a second scraper is fixedly connected to one end of the second connecting shaft located in the first cavity, a side wall of the second scraper is in contact with the filter plate, and the first scraper is configured to contact the second scraper when rotating around the first connecting shaft and drive the second scraper to rotate.

2. The hydraulic system grease filter device according to claim 1, characterized in that: A torsion spring is sleeved on one end of the second connecting shaft located in the second cavity, one end of the torsion spring is fixedly connected to the filter plate, and the other end of the torsion spring is fixed to the second connecting shaft.

3. The hydraulic system grease filter device according to claim 2, characterized in that: The first scraper and the second scraper are respectively constructed as long strips, the first scraper has a first section located on one side of the first connecting axis and a second section located on the other side of the first connecting axis, the first section and the second section have the same length, the second scraper has a third section located on one side of the second connecting axis and a fourth section located on the other side of the second connecting axis, the length of the third section is greater than the length of the fourth section.

4. The hydraulic system grease filter device according to claim 1, characterized in that: The filter plate is rotatably connected to a plurality of the second connecting shafts, and the plurality of the second connecting shafts are arranged at intervals along the circumference of the filter plate.

5. The hydraulic system grease filter device according to claim 1, characterized in that: A receiving groove is provided at the bottom of the first cavity of the tank body near the filter plate, and a collecting box is detachably connected to the receiving groove, and the top end of the collecting box is opened.

6. The hydraulic system grease filter device according to claim 5, characterized in that: An opening is provided at the bottom of the tank body at a position corresponding to the collection box, and a sealing gasket is fixedly connected to the bottom of the collection box through the opening. The sealing gasket is configured to be attached to the outer wall of the tank body and completely cover the opening, and the collection box is movably installed in the accommodating groove along the radial direction of the tank body.

7. The hydraulic system grease filter device according to claim 6, characterized in that: A handle is fixedly connected to the outer wall of the sealing pad.

8. The hydraulic system grease filter device according to claim 1, characterized in that: One end of the filter plate located in the second cavity is fixedly connected with an arc-shaped guide plate bent toward the rotating blade, and the arc-shaped guide plate is located above the rotating blade.

9. The grease filter device for a hydraulic system according to any one of claims 1 to 8, characterized in that: A wedge block is fixedly connected to one end of the filter plate located in the second cavity, a connecting rod is rotatably connected to the side wall of the first connecting shaft located in the second cavity, the connecting rod can rotate around its own central axis, a knocking ball is fixedly connected to one end of the connecting rod away from the first connecting shaft, the knocking ball is configured to contact and pass over the wedge block when the first connecting shaft rotates, and an elastic member is fixedly connected between the side wall of the first connecting shaft and the connecting rod.

10. The hydraulic system grease filter device according to claim 9, characterized in that: A plurality of the wedge blocks are fixedly connected to the filter plate, and the plurality of the wedge blocks are arranged at intervals along the circumference of the filter plate.

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