Mechanical hydraulic oil tank assembly with automatic impurity filtering and separating functions

Abstract

The utility model provides a mechanical hydraulic oil tank assembly with an automatic impurity filtering and separating function, which relates to the technical field of hydraulic oil filtering and comprises a main filtering frame, an upper filtering communicating frame and a middle rotating shaft, the upper portion of the main filtering frame is in threaded connection with the upper filtering communicating frame, and the middle rotating shaft is arranged in the main filtering frame. An inner filter screen cylinder is slidably inserted into the main filter frame, a liquid outlet is formed in the lower portion of the main filter frame, an outer guide rotating frame is rotatably connected to the inner side of the main filter frame in the circumferential direction, a lower slag collecting pipe is arranged at the bottom of the main filter frame, the outer side of the lower slag collecting pipe is in threaded connection with a slag collecting and sewage discharging cover, and a magnetic attraction block is fixedly connected to the outer side of the bottom of the slag collecting and sewage discharging cover. The bristle strips clean impurities on the inner side of the inner filter screen cylinder, reduce the internal and external pressure difference of the inner filter screen cylinder, prolong the service life of the inner filter screen cylinder, and solve the problems that the filter screen is blocked by the impurities, the filtering efficiency is reduced, and personnel need to frequently clean the filter screen.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic oil filtration technology, and in particular to a mechanical hydraulic oil tank assembly with automatic impurity filtration and separation. Background Technology

[0002] Mechanical hydraulic oil tanks are used to store hydraulic oil, dissipate heat, settle impurities, and separate air from the oil. Mechanical hydraulic oil tanks enable the recycling of oil and control pollution.

[0003] Mechanical hydraulic oil tanks use filter screens and other filtration components to filter and separate impurities in hydraulic oil. After a period of use, the filter screen will become clogged with impurities, resulting in a decrease in filtration efficiency. Frequent disassembly and cleaning of the filter screen is required. If the cleaning cycle is long or a lot of impurities are generated during operation, the filter screen will become clogged and cannot be cleaned, which will lead to an increase in the pressure difference on both sides of the filter screen and the filter screen being damaged by the pressure. Summary of the Invention

[0004] This utility model provides a mechanical hydraulic oil tank assembly with automatic impurity filtration and separation. The inner filter screen filters the hydraulic oil. The flow of hydraulic oil simultaneously drives the rotation of the central rotating shaft and the inner filter screen. The central rotating shaft promotes the circumferential spiral flow of hydraulic oil, further extending the contact time between the oil and the filter screen, thereby improving the filtration efficiency of the hydraulic oil and the inner filter screen. The lower brush strip cleans impurities inside the inner filter screen, promoting the falling of impurities inside the inner filter screen, reducing the pressure difference between the inside and outside of the inner filter screen, and extending the service life of the inner filter screen.

[0005] This utility model provides a mechanical hydraulic oil tank assembly with automatic impurity filtration and separation, specifically including a main filter frame, an upper filter connecting frame, and a central rotating shaft. The upper filter connecting frame is threadedly connected to the upper part of the main filter frame. The central rotating shaft is set inside the main filter frame. An inner filter screen cylinder is slidably connected inside the main filter frame. The inner filter screen cylinder is made of 316L stainless steel woven mesh with a pore size of 40μm and a filtration area of ​​0.5m². An outlet is opened at the lower part of the main filter frame. An outer flow guide frame is rotatably connected to the inner side of the main filter frame. A lower slag collection pipe is set at the bottom of the main filter frame. A slag collection and drainage cover is threadedly connected to the outer side of the lower slag collection pipe. A magnetic block is fixedly connected to the bottom outer side of the slag collection and drainage cover. The magnetic block is made of N52 neodymium iron boron material with a surface magnetic induction intensity of 1.2T and an adsorption radius of 50mm. The inner filter screen cylinder and the main filter frame are sealed with fluororubber O-rings, and the upper filter connecting frame and the main filter frame are sealed with fluororubber O-rings.

[0006] Furthermore, a flow guide ramp protrudes from the inner side of the upper filter connecting frame, and an upper liquid inlet is opened in the middle of the upper filter connecting frame.

[0007] Furthermore, the upper part of the guide ramp is a sloped structure that contracts towards the center. The oil flows along the 45° slope of the guide ramp and is introduced into the inner side of the inner filter cylinder. The bottom of the guide ramp and the top of the inner filter cylinder are in contact, and the upper filter connecting frame is connected to the inner side of the inner filter cylinder.

[0008] Furthermore, the upper part of the central rotating shaft is provided with upper fan blades in a ring array, and the lower part of the central rotating shaft is provided with lower brush strips in a ring array. The nylon bristles of the lower brush strips have a hardness of 80A and a compression of 2mm.

[0009] Furthermore, the upper fan blade is located inside the upper filter connecting frame and above the guide ramp. The oil in the upper inlet directly drives the upper fan blade to rotate. The upper fan blade and the central rotating shaft rotate synchronously, promoting the circumferential spiral flow of hydraulic oil inside the inner filter cylinder.

[0010] Furthermore, both the central rotating shaft and the lower brush strip are located inside the inner filter cylinder. The outer bristles of the lower brush strip slide in contact with the inner wall of the inner filter cylinder. The bristles of the lower brush strip clean impurities inside the inner filter cylinder, ensuring unobstructed filtration and reducing the pressure difference between the inside and outside of the inner filter cylinder.

[0011] Furthermore, the outlet is located outside the inner filter cylinder, and the outer guide frame is located between the inner filter cylinder and the main filter frame. The outer guide frame is equipped with 8 guide vanes inclined at 45° to guide the radial flow of oil. The rotation of the outer guide frame promotes the flow of hydraulic oil filtered outside the inner filter cylinder.

[0012] This utility model provides a mechanical hydraulic oil tank assembly with automatic impurity filtration and separation, which has the following beneficial effects:

[0013] The inner filter screen filters the hydraulic oil. The flow of hydraulic oil simultaneously drives the rotation of the central rotating shaft and the inner filter screen. The central rotating shaft promotes the circumferential spiral flow of hydraulic oil, further extending the contact time between the oil and the filter screen, thus improving the filtration efficiency of the hydraulic oil and the inner filter screen. The rotation of the outer guide frame promotes the flow of hydraulic oil filtered outside the inner filter screen, reducing the accumulation of hydraulic oil on the side away from the outlet and promoting the fluidity of the hydraulic oil.

[0014] As the lower brush strips rotate with the central rotating shaft, they clean impurities inside the inner filter cylinder, promoting the falling of impurities and reducing the pressure difference between the inside and outside of the inner filter cylinder. This extends the service life of the inner filter cylinder and the interval between maintenance. At the same time, the magnetic block attracts impurities and concentrates them inside the slag collection and drainage cover, preventing impurities from flowing back into the filter screen and reducing the risk of filter clogging. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.

[0016] The accompanying drawings described below are only related to some embodiments of the present invention and are not intended to limit the scope of the present invention.

[0017] In the attached diagram:

[0018] Figure 1 A schematic diagram of the overall structure of this application is shown;

[0019] Figure 2 This invention provides a structural schematic diagram showing the cross-sectional views of the main filter frame and the upper filter connecting frame.

[0020] Figure 3 A structural schematic diagram of the cross-section of the lower slag collection pipe and the slag collection and sewage discharge cover of this application is shown;

[0021] Figure 4 A schematic diagram of the rotating shaft structure in this application is shown;

[0022] Figure 5 A schematic diagram of the external flow guide frame of this application is shown;

[0023] Figure 6 This invention shows a structural schematic diagram of the main filter frame, the upper filter connecting frame, and the middle rotating shaft in their separated states.

[0024] Figure label:

[0025] 1. Main filter frame; 101. Inner filter screen cylinder; 102. Liquid outlet; 103. Outer flow guide frame; 104. Lower slag collection pipe; 105. Slag collection and drain cover; 106. Magnetic block;

[0026] 2. Upper filter connecting frame; 201. Flow guide ramp; 202. Upper liquid inlet;

[0027] 3. Middle rotating shaft; 301. Upper fan blade; 302. Lower brush strip. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0029] Example 1: Please refer to Figures 1 to 6 :

[0030] This utility model proposes a mechanical hydraulic oil tank assembly with automatic impurity filtration and separation, including a main filter frame 1, an upper filter connecting frame 2, and a central rotating shaft 3. An inner filter screen cylinder 101 is slidably connected inside the main filter frame 1. The inner filter screen cylinder 101 is made of 316L stainless steel woven mesh with a pore size of 40μm and a filtration area of ​​0.5m². An outlet 102 is provided at the lower part of the main filter frame 1. An outer flow guide frame 103 is rotatably connected to the inner side of the main filter frame 1. A lower slag collection pipe 104 is provided at the bottom of the main filter frame 1. A slag discharge cover 105 is threadedly connected to the outer side of the lower slag collection pipe 104. A magnetic block 106 is fixedly connected to the bottom outer side of the slag discharge cover 105. The magnetic block 106 is made of N52 neodymium iron boron material with a surface magnetic induction intensity of 1.2T and an adsorption radius of 50mm. The seal between the inner filter screen cylinder 101 and the main filter frame 1 is made of fluororubber. The O-rings are used to seal the upper filter connecting frame 2 and the main filter frame 1. The upper filter connecting frame 2 is threadedly connected to the upper part of the main filter frame 1. A guide ramp 201 is provided on the inner side of the upper filter connecting frame 2. An upper liquid inlet 202 is opened in the middle of the upper filter connecting frame 2. The upper part of the guide ramp 201 is a slope structure that contracts towards the center. The oil flows along the 45° slope of the guide ramp 201 and is introduced into the inner side of the inner filter screen cylinder 101. The bottom of the guide ramp 201 and the top of the inner filter screen cylinder 101 are in contact. The upper filter connecting frame 2 and the inner side of the inner filter screen cylinder 101 are connected. A central rotating shaft 3 is provided inside the main filter frame 1. The upper part of the central rotating shaft 3 is provided with an upper fan blade 301 in a ring array. The lower part of the central rotating shaft 3 is provided with a lower brush strip 302 in a ring array. The nylon bristles of the lower brush strip 302 have a hardness of 80A and a compression of 2mm.

[0031] In this embodiment, the upper fan blade 301 is located inside the upper filter connecting frame 2 and above the guide ramp 201. The oil in the upper inlet 202 directly drives the upper fan blade 301 to rotate. The upper fan blade 301 and the middle rotating shaft 3 rotate synchronously, which promotes the circumferential spiral flow of hydraulic oil inside the inner filter screen cylinder 101, further prolonging the contact time between the oil and the inner filter screen cylinder 101 and improving the filtration efficiency of the inner filter screen cylinder 101 for hydraulic oil.

[0032] In this embodiment, the central rotating shaft 3 and the lower brush strip 302 are both located inside the inner filter cylinder 101. The outer bristles of the lower brush strip 302 slide against the inner wall of the inner filter cylinder 101. The bristles of the lower brush strip 302 clean impurities inside the inner filter cylinder 101, keeping the filtration of the inner filter cylinder 101 unobstructed, reducing the pressure difference between the inside and outside of the inner filter cylinder 101, and extending the service life of the inner filter cylinder 101.

[0033] In this embodiment, the outlet 102 is located outside the inner filter cylinder 101, and the outer guide frame 103 is located between the inner filter cylinder 101 and the main filter frame 1. The outer guide frame 103 is provided with 8 guide vanes inclined at 45° to guide the radial flow of oil. The rotation of the outer guide frame 103 promotes the flow of hydraulic oil filtered outside the inner filter cylinder 101, reduces the accumulation of hydraulic oil on the side away from the outlet 102, and promotes the fluidity of the filtered hydraulic oil.

[0034] In this second embodiment, based on the first embodiment, the central rotating shaft 3 is driven by a motor to rotate at a higher speed. The rotation of the central rotating shaft 3 guides the hydraulic oil inside the inner filter cylinder 101 in a circumferential manner, accelerating the contact filtration between the hydraulic oil and the inner filter cylinder 101. Compared with relying on hydraulic flow, this further improves the filtration and separation efficiency between the hydraulic oil and the inner filter cylinder 101.

[0035] The working principle of this embodiment is as follows: the outlet 102 is connected and fixed to the return oil pipe of the mechanical hydraulic oil tank, and the upper inlet 202 is connected and fixed to the return oil pipe of the equipment. The circulating oil from the equipment enters the upper filter connecting frame 2 through the upper inlet 202. The guide ramp 201 guides the oil into the inner filter screen cylinder 101. The oil filtered by the inner filter screen cylinder 101 enters the mechanical hydraulic oil tank through the outlet 102. During the process of the inner filter screen cylinder 101 filtering the hydraulic oil, the flow of the hydraulic oil simultaneously drives the middle rotating shaft 3, the upper fan blade 301, the lower brush strip 302, and the outer guide frame 103. The rotation of the middle rotating shaft 3 and the upper support of the lower slag collection pipe 104 are rotatably connected. The rotation of the middle rotating shaft 3, the upper fan blade 301 and the lower brush strip 302 promotes the circumferential spiral flow of hydraulic oil inside the inner filter screen cylinder 101, which further prolongs the contact time between the oil and the inner filter screen cylinder 101, improves the filtration efficiency of the hydraulic oil and the inner filter screen cylinder 101, and the rotation of the outer guide frame 103 promotes the flow of hydraulic oil after filtration outside the inner filter screen cylinder 101, reduces the accumulation of hydraulic oil on the side away from the outlet 102, promotes the fluidity of hydraulic oil, and ensures that the fluidity of oil is consistent throughout the entire area.

[0036] As the lower brush strip 302 rotates with the central rotating shaft 3, the bristles of the lower brush strip 302 clean impurities inside the inner filter screen cylinder 101, promoting the separation and falling of impurities adsorbed inside the inner filter screen cylinder 101, keeping the filtration of the inner filter screen cylinder 101 unobstructed, reducing the pressure difference between the inside and outside of the inner filter screen cylinder 101, reducing the filter screen pressure difference from 0.25MPa to 0.05MPa, extending the service life of the inner filter screen cylinder 101, and extending the maintenance interval. At the same time, the magnetic block 106 adsorbs impurities and concentrates them inside the slag collection and sewage discharge cover 105, preventing impurities from flowing back into the filter screen and reducing the risk of filter screen blockage. The slag collection and sewage discharge cover 105 can be removed to clean the impurities.

[0037] The following points should be noted in this article:

[0038] 1. The accompanying drawings of the embodiments disclosed herein only involve structures relevant to the embodiments disclosed herein; other structures may refer to general designs.

[0039] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0040] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A mechanical hydraulic oil tank assembly with automatic impurity filtration and separation, comprising: The main filter frame (1), the upper filter connecting frame (2), and the middle rotating shaft (3) are characterized in that the upper part of the main filter frame (1) is threadedly connected to the upper filter connecting frame (2), the middle rotating shaft (3) is provided inside the main filter frame (1), the inner filter screen cylinder (101) is slidably connected inside the main filter frame (1), the lower part of the main filter frame (1) is provided with a liquid outlet (102), the inner side of the main filter frame (1) is circumferentially connected to an outer flow guide frame (103), the bottom of the main filter frame (1) is provided with a lower slag collection pipe (104), the outer side of the lower slag collection pipe (104) is threadedly connected to a slag collection and sewage discharge cover (105), and the bottom outer side of the slag collection and sewage discharge cover (105) is fixedly connected to a magnetic suction block (106).

2. The mechanical hydraulic oil tank assembly with automatic impurity filtration and separation according to claim 1, characterized in that, The upper filter connecting frame (2) has a protruding guide ramp (201) on its inner side, and an upper liquid inlet (202) is opened in the middle of the upper filter connecting frame (2).

3. A mechanical hydraulic oil tank assembly with automatic impurity filtration and separation according to claim 2, characterized in that, The upper part of the flow guide ramp (201) is a slope structure that contracts towards the center. The bottom of the flow guide ramp (201) and the top of the inner filter cylinder (101) are attached together. The upper filter connecting frame (2) and the inner side of the inner filter cylinder (101) are connected.

4. A mechanical hydraulic oil tank assembly with automatic impurity filtration and separation according to claim 1, characterized in that, The upper part of the central rotating shaft (3) is provided with an upper fan blade (301) in a ring array, and the lower part of the central rotating shaft (3) is provided with a lower brush strip (302) in a ring array.

5. A mechanical hydraulic oil tank assembly with automatic impurity filtration and separation according to claim 4, characterized in that, The upper fan blade (301) is located inside the upper filter connecting frame (2) and above the flow guide ramp (201).

6. A mechanical hydraulic oil tank assembly with automatic impurity filtration and separation according to claim 5, characterized in that, The central rotating shaft (3) and the lower brush strip (302) are both located inside the inner filter cylinder (101), and the outer bristles of the lower brush strip (302) slide against the inner wall of the inner filter cylinder (101).

7. A mechanical hydraulic oil tank assembly with automatic impurity filtration and separation according to claim 6, characterized in that, The liquid outlet (102) is located outside the inner filter cylinder (101), and the outer flow guide frame (103) is located between the inner filter cylinder (101) and the main filter frame (1).

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