Novel hydraulic system filter
By designing the structure that combines the inner and outer shells and rotating the inner shell to separate the filter element and hydraulic oil flow path, the problem of impurities and leakage in the filter element replacement process is solved, achieving higher cleanliness and operating reliability.
Patent Information
- Application Number
- CN202422403492.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-09-30
AI Technical Summary
Traditional hydraulic oil filters are prone to introduce impurities and lead to hydraulic oil leakage during the filter element replacement process, affecting the cleanliness and operating reliability of the hydraulic system.
Design a structure that combines the inner and outer shells, and separates the filter element and hydraulic oil flow paths by rotating the inner shell to avoid impurities entering and liquid leakage.
Effectively prevent external impurities from entering, avoid hydraulic oil leakage, and ensure the cleanliness and operation reliability of the hydraulic system.
Smart Images
Figure CN223035421U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a new type of hydraulic system filter, belonging to the technical field of hydraulic oil filters. Background Art
[0002] Hydraulic systems are widely used in the fields of construction machinery, industrial equipment, etc. Their operating performance and reliability directly affect the production process efficiency and product quality. The hydraulic system filter is a key component to ensure the cleanliness of hydraulic oil. The function of the hydraulic oil filter is to intercept tiny impurities in the oil, prevent them from damaging hydraulic components, and extend their service life.
[0003] As Figure 1 shown, the structure of the traditional hydraulic oil filter mainly includes a housing, a filter element inside the housing, and a disassembly sleeve for sealing. However, this structure has the following problems: when replacing the filter element, the housing needs to be completely removed, and the disassembly sleeve is exposed to the air and is prone to inhaling impurities; since the housing is completely immersed in the oil tank, hydraulic oil leakage will occur during the process of replacing the filter element. These problems will lead to a reduction in accuracy after replacement, and even cause damage to the hydraulic system, affecting the normal operation of the equipment.
[0004] Therefore, there is an urgent need for a new type of hydraulic oil filter structure that can effectively avoid the entry of impurities and oil leakage during the process of replacing the filter element, and ensure the cleanliness and operating reliability of the hydraulic system. Summary of the Utility Model
[0005] To solve the problems existing in the prior art, the utility model designs a structure combining an inner and an outer housing, and separates the filter element from the hydraulic oil flow path by rotating the inner housing. This avoids the introduction of impurities or liquid leakage during the process of replacing the filter element, and ensures the cleanliness and operating reliability of the hydraulic system.
[0006] The technical solution adopted by the utility model is a new type of hydraulic system filter, including a housing, an inner housing, a filter element, and a disassembly sleeve. The filter element is located inside the inner housing, the inner housing fits against the inner side of the housing, one end of the housing and the inner housing is detachably connected to the disassembly sleeve, and oil inlet holes are provided at the bottom of the housing and the inner housing.
[0007] Further, a row of oil through holes are provided at intervals on the side wall of the inner housing.
[0008] Further, the side parts of the housing and the inner housing are threadedly connected to the disassembly sleeve.
[0009] Further, the inner housing can rotate inside the housing under the action of an external force.
[0010] Further, a oil pipe communicating with the filter element is provided on the housing away from the end where the disassembly sleeve is located.
[0011] The present utility model discloses a novel hydraulic system filter. The beneficial effect is that, compared with the prior art, the oil inlet hole introduces the hydraulic oil to be processed. By arranging the inner shell and the oil through holes, the hydraulic oil can fully contact the filter element in the inner shell and be filtered. The filtered hydraulic oil is discharged from the system through the oil pipe located on the side far from the disassembly sleeve. When the filter element needs to be replaced, the disassembly sleeve is removed, and the inner shell is rotated until the height of the oil through holes is higher than the liquid level of the hydraulic oil pool, changing the flow path of the hydraulic oil, which can effectively prevent external impurities from entering and avoid the risk of partial hydraulic oil leakage at the same time. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are 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.
[0013] Figure 1 The following shows a schematic cross-sectional view of the structure of an existing hydraulic oil filter;
[0014] Figure 2 The following shows a schematic cross-sectional view of the structure of Embodiment 1 of the present utility model.
[0015] As shown in the figure: 1. Outer shell; 2. Inner shell; 3. Filter element; 4. Disassembly sleeve; 5. Oil inlet hole; 6. Oil through hole; 7. Oil pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0016] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, rather than all embodiments. The description of at least one exemplary embodiment is actually only illustrative and in no way limits the present utility model and its application or use. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.
[0017] The existing hydraulic oil filter does not reasonably separate the filter element replacement area and the liquid flow area in terms of design, making the operation process vulnerable to external factors, resulting in hydraulic oil leakage or entry of impurities during the filter element replacement process.
[0018] To further understand the content of the present utility model, the following further elaborates on this technical solution in combination with the specific embodiments.
[0019] Embodiment 1: AsFigure 2 As shown in the figure, this embodiment provides a new type of hydraulic system filter, which includes a housing 1, an inner housing 2, a filter element 3, and a disassembly sleeve 4. The filter element 3 is located inside the inner housing 2, the inner housing 2 is attached to the inner side of the housing 1, and one end of the housing 1 and the inner housing 2 is provided with a core-taking port. The end of the housing 1 and the inner housing 2 where the core-taking port is located is detachably connected to the disassembly sleeve 4, and the disassembly sleeve 4 is used to seal the core-taking port. Specifically, one end of the housing 1 and the inner housing 2 is threadedly connected to the disassembly sleeve 4.
[0020] The bottom of the housing 1 and the inner housing 2 is provided with an oil inlet hole 5, and a row of oil-through holes 6 are arranged at intervals on the side wall of the inner housing 2. Specifically, a row of oil-through holes 6 means that a number of oil-through holes 6 are distributed in a direction parallel to the length direction of the filter element 3 placed in the inner housing 2. The oil-through holes 6 connect the oil inlet hole 5 with the filter element 3, and the inner housing 2 can rotate inside the housing 1 under the action of an external force.
[0021] Furthermore, the housing 1 on the side far from the disassembly sleeve 4 is provided with a oil pipe 7 communicating with the filter element 3.
[0022] In the actual application process, in this utility model, the oil-through holes 6 and the oil inlet hole 5 are in the same direction. Specifically, the oil-through holes 6 and the oil inlet hole 5 are in the same plane. Hydraulic oil flows in from the oil inlet hole 5, flows through the oil-through holes 6 and then contacts the filter element 3. The hydraulic oil filtered by the filter element 3 flows out from the oil pipe 7 and is discharged into the oil sump. When the filter element 3 needs to be replaced, the disassembly sleeve 4 is unscrewed, and the inner housing 2 is rotated by a certain angle manually. In this embodiment, the inner housing 2 is rotated 180°, that is, at this time, the oil-through holes 6 are located above the filter element 3, so that the height of the oil-through holes 6 is higher than the liquid level height of the hydraulic oil. At this time, the hydraulic oil cannot flow from the oil inlet hole 5 into the inner housing 2, that is, the oil sump is separated from the filter element 3, thus avoiding the entry of impurities or oil leakage during the replacement process of the filter element 3.
[0023] It should be noted that the rotation angle of the inner housing 2 does not have a specific angle requirement, and only needs to meet that the height of the oil-through holes 6 is higher than the liquid level height of the hydraulic oil.
[0024] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present utility model, rather than to limit it; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present utility model.
Claims
1. A new type of hydraulic system filter, characterized in that: The invention comprises an outer shell (1), an inner shell (2), a filter element (3) and a disassembly screw sleeve (4), wherein the filter element (3) is located inside the inner shell (2), the inner shell (2) is attached to the inner side of the outer shell (1), one end of the outer shell (1) and the inner shell (2) are detachably connected to the disassembly screw sleeve (4), and the bottoms of the outer shell (1) and the inner shell (2) are provided with oil inlet holes (5).
2. A novel hydraulic system filter according to claim 1, characterized in that: The side wall of the inner shell (2) is provided with a row of oil holes (6) arranged at intervals.
3. A novel hydraulic system filter according to claim 1 or 2, characterized in that: The side parts of the outer shell (1) and the inner shell (2) are threadedly connected with the disassembly screw sleeve (4).
4. A novel hydraulic system filter according to claim 2, characterized in that: The inner shell (2) can rotate inside the outer shell (1) under the action of external force.
5. A novel hydraulic system filter according to claim 1, characterized in that: An oil pipe (7) communicating with the filter element (3) is provided on the housing (1) at the end away from the disassembly screw sleeve (4).