Filter assembly for hydraulic oil pump

Abstract

The utility model provides a filter assembly for a hydraulic oil pump, which belongs to the technical field of filters, and comprises a filter cartridge, a floating mechanism is arranged in the filter cartridge, the floating mechanism comprises a main shaft, a first connecting rod, a second connecting rod, an input pipe, a winding pipe and a bottom suction water pump, the main shaft is movably sleeved with a movable ring, and the movable ring is sleeved with a second connecting rod. The movable ring is fixedly connected with a first pipe sleeve and a second pipe sleeve. By arranging the floating mechanism, the effects are achieved that when filtering work is carried out, one part of the filter element is in a working state, along with attachment of impurities to the filter element, the passing flow of the lower part of the filter element is reduced, input liquid rises, and the liquid flows through a new filter element part after rising, so that the situation that all parts of the filter element are used at the beginning is avoided, and the use cost is reduced. According to the hydraulic oil filtering device, the blocking phenomenon caused by large-area filtering of the filter element is avoided, it is always guaranteed that before the service life of the filter element is over, the throughput of hydraulic oil is guaranteed for unused parts all the time, and the filtering effect on the hydraulic oil is guaranteed to a great extent.

Description

Technical Field

[0001] The utility model relates to the technical field of filters, in particular to a filtering component for a hydraulic oil pump. Background Art

[0002] Hydraulic oil is the hydraulic medium used in a hydraulic system that utilizes the hydraulic pressure energy. It plays roles such as energy transfer, anti-wear, system lubrication, anti-corrosion, rust prevention, and cooling in the hydraulic system. For hydraulic oil, first of all, it should meet the requirements of the liquid viscosity at the working temperature and starting temperature of the hydraulic device. Since the viscosity change of the lubricating oil is directly related to the hydraulic action, transmission efficiency, and transmission accuracy, it is also required that the viscosity-temperature performance and shear stability of the oil should meet various requirements put forward for different uses.

[0003] When filtering hydraulic oil, common filtering mechanisms generally include basket filters, conical filters, T-type filters, and Y-type filters. However, no matter which one it is, the filter screen or filter element is all placed in the liquid, and the whole of the filter element conducts the filtering work. Although this phenomenon is not obvious in the early stage, but later as it increases, it will adhere to the filter screen of the filter element. Over time, the passability of the filtering part will decrease, affecting the later filtering effect. Content of the Utility Model

[0004] To make up for the above deficiencies, the utility model provides a filtering component for a hydraulic oil pump that overcomes the above technical problems or at least partially solves the above problems.

[0005] The utility model is implemented as follows:

[0006] The utility model provides a filtering component for a hydraulic oil pump, including a filter cylinder, and a floating mechanism is arranged inside the filter cylinder. The floating mechanism includes:

[0007] A main shaft, an activity ring is movably sleeved on the main shaft, and a first pipe sleeve and a second pipe sleeve are fixedly connected to the activity ring;

[0008] A first connecting rod, a roller is movably arranged on the first connecting rod through an insertion shaft;

[0009] A second connecting rod, a floating ball is fixedly connected to the end of the second connecting rod;

[0010] An input pipe, one end of the input pipe is fixedly sleeved on the inner ring of the first pipe sleeve;

[0011] A winding pipe, one end of the winding pipe is fixedly sleeved on the inner ring of the second pipe sleeve;

[0012] A bottom suction water pump, the bottom suction water pump is arranged at the bottom of the inner wall of the filter cylinder through a suction cup.

[0013] In an embodiment of the present utility model, the first connecting rod and the second connecting rod are cross - arranged on the outer ring of the movable ring. A bearing is provided in the middle hole of the roller, the middle shaft of the roller is fixedly connected to the outer ring of the bearing, and the rod body of the first connecting rod is fixedly connected to the inner ring of the bearing.

[0014] In an embodiment of the present utility model, a cover plate is provided at the top of the filter cylinder. The other end of the input pipe penetrates to the upper surface of the cover plate. An insertion rod ring is provided at the top of the input pipe. The lower end of the insertion rod ring is movably inserted into the top of the cover plate, and the ring body of the insertion rod ring is tightly inserted and connected to the top end of the input pipe.

[0015] In an embodiment of the present utility model, a collecting cylinder is provided at the bottom of the filter cylinder, and an output port is provided at the side of the collecting cylinder.

[0016] In an embodiment of the present utility model, the output port of the bottom suction water pump is tightly inserted and connected to the bottom end of the winding pipe.

[0017] In an embodiment of the present utility model, a filtering mechanism is provided at the bottom of the filter cylinder. The filtering mechanism is provided with a vertical plate located on the outer circle of the main shaft, and the inner side of the vertical plate is mutually lapped with the wheel body of the roller.

[0018] In an embodiment of the present utility model, a filter element is provided at the bottom of the inner wall of the filter cylinder. The bottom cylinder of the filter cylinder is provided with an internal thread ring, and an external thread ring is fixedly connected to the bottom of the filter element. The internal thread ring of the filter cylinder is thread - connected with the external thread ring of the filter element.

[0019] In an embodiment of the present utility model, the top of the collecting cylinder is provided with an opening and is fixedly connected to the bottom of the filter cylinder.

[0020] A filtering component for a hydraulic oil pump provided by the present utility model has the following beneficial effects:

[0021] 1. By setting the floating mechanism, the bottom of the input pipe and the floating ball are located on the same horizontal plane, thereby achieving the purpose of adjusting the height of the input port, so that the hydraulic oil is always filtered from the lowest point of the effective part of the filter element after being injected into the device. In this process, the hydraulic oil passes through the filter element from bottom to top. The achieved effect is that during the filtering work, a part of the filter element is in the working state. As impurities adhere to the filter element, the flow rate passing through the lower part of the filter element decreases, then the input liquid will rise, and after rising, it will flow through a new part of the filter element, avoiding the congestion phenomenon caused by the large - area filtering of the filter element at the beginning. It always ensures that before the end of the filter element's service life, there is always an unused part to ensure the passing volume of the hydraulic oil, which greatly guarantees the filtering effect of the hydraulic oil.

[0022] 2. By setting a bottom suction water pump, since the hydraulic oil is injected from top to bottom, with the help of the bottom suction water pump, the bottom liquid of the unfiltered hydraulic oil can be pumped to the upper layer of the liquid, ensuring the fluidity of the hydraulic oil inside the device, avoiding the phenomenon that the upper liquid is filtered while the lower liquid precipitates, and ensuring the filtering effect of the device. Brief Description of the Drawings

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0024] Figure 1 is a schematic structural diagram provided by the embodiment of the present invention;

[0025] Figure 2 is an internal structure diagram provided by the embodiment of the present invention;

[0026] Figure 3 is a disassembled diagram provided by the embodiment of the present invention;

[0027] Figure 4 is a schematic structural diagram of the floating mechanism provided by the embodiment of the present invention.

[0028] In the figure: 1. Filter cylinder; 101. Cover plate; 102. Collection cylinder; 103. Output port; 104. Insert rod ring; 2. Floating mechanism; 201. Main shaft; 202. Movable ring; 203. First connecting rod; 204. Roller; 205. Second connecting rod; 206. Floating ball; 207. First pipe sleeve; 208. Second pipe sleeve; 209. Input pipe; 210. Reel pipe; 211. Bottom suction water pump; 3. Filter mechanism; 301. Vertical plate; 302. Filter element; 303. External thread ring. Detailed Embodiments

[0029] To make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0030] Embodiment

[0031] Refer to Figures 1-4, This technical solution provides a filtering assembly for a hydraulic oil pump, which includes a filter cylinder 1. A floating mechanism 2 is arranged inside the filter cylinder 1. The floating mechanism 2 includes: a main shaft 201, a first connecting rod 203, a second connecting rod 205, an input pipe 209, a winding pipe 210, and a bottom suction water pump 211. A movable ring 202 is movably sleeved on the main shaft 201. A first pipe sleeve 207 and a second pipe sleeve 208 are fixedly connected to the movable ring 202. A roller 204 is movably arranged on the first connecting rod 203 through a plug shaft. A floating ball 206 is fixedly connected to the end of the second connecting rod 205. One end of the input pipe 209 is fixedly sleeved on the inner circle of the first pipe sleeve 207. One end of the winding pipe 210 is fixedly sleeved on the inner circle of the second pipe sleeve 208. The bottom suction water pump 211 is arranged at the bottom of the inner wall of the filter cylinder 1 through a suction cup. By setting the floating mechanism 2, the bottom of the input pipe 209 and the floating ball 206 are located at the same horizontal plane, so as to achieve the purpose of adjusting the height of the input port, so that the hydraulic oil is always filtered from the lowest point of the effective part of the filter element 302 after being injected into the device. In this process, the hydraulic oil passes through the filter element 302 from bottom to top. The achieved effect is that when the filtering work is carried out, a part of the filter element 302 is in the working state. As impurities adhere to the filter element 302, the flow rate passing through the lower part of the filter element 302 decreases, then the input liquid will rise, and after rising, it will flow through a new part of the filter element 302, avoiding the congestion phenomenon caused by the large-area filtration of the filter element 302 at the beginning. It always ensures that before the end of the life of the filter element 302, there is always an unused part to ensure the passing amount of hydraulic oil, which greatly guarantees the filtering effect of the hydraulic oil.

[0032] Refer to Figures 1-4 , Based on the same concept as the above-mentioned Embodiment 1, this embodiment also proposes that the first connecting rod 203 and the second connecting rod 205 are cross-arranged on the outer ring of the movable ring 202. A bearing is arranged in the middle hole of the roller 204. The middle shaft of the roller 204 is fixedly connected to the outer ring of the bearing. The rod body of the first connecting rod 203 is fixedly connected to the inner ring of the bearing.

[0033] Refer to Figures 1-4 , Based on the same concept as the above-mentioned Embodiment 1, this embodiment also proposes that a cover plate 101 is arranged at the top of the filter cylinder 1. The other end of the input pipe 209 penetrates to the upper surface of the cover plate 101. An insertion rod ring 104 is arranged at the top of the input pipe 209. The lower end of the insertion rod ring 104 is movably inserted into the top of the cover plate 101. The ring body of the insertion rod ring 104 is tightly inserted into the top end of the input pipe 209. A collecting cylinder 102 is arranged at the bottom of the filter cylinder 1. An output port 103 is arranged on the side of the collecting cylinder 102 for outputting the filtered oil.

[0034] Refer to Figures 1-4, based on the same concept as in the above-mentioned Embodiment 1, this embodiment also proposes that the output port 103 of the bottom suction water pump 211 is tightly inserted into the bottom end of the winding pipe 210. By setting the bottom suction water pump 211, since the hydraulic oil is injected from top to bottom, with the help of the bottom suction water pump 211, the bottom liquid of the unfiltered hydraulic oil can be pumped to the upper layer of the liquid, ensuring the fluidity of the hydraulic oil inside the device, avoiding the phenomenon that the upper liquid is filtered while the lower liquid precipitates, and ensuring the filtering effect of the device.

[0035] Refer to Figures 1-4 , based on the same concept as in the above-mentioned Embodiment 1, this embodiment also proposes that a filtering mechanism 3 is provided at the bottom of the filtering cylinder 1. The filtering mechanism 3 is provided with a vertical plate 301 located outside the outer ring of the main shaft 201. The inner side of the vertical plate 301 is mutually lapped with the wheel body of the roller 204. The roller 204 moves inside the vertical plate 301 to provide a stable upward limiting effect and prevent it from rotating randomly.

[0036] Refer to Figures 1-4 , based on the same concept as in the above-mentioned Embodiment 1, this embodiment also proposes that a filter element 302 is provided at the bottom of the inner wall of the filtering cylinder 1. The bottom cylinder of the filtering cylinder 1 is provided with an internal thread ring. The bottom of the filter element 302 is fixedly connected with an external thread ring 303. The internal thread ring of the filtering cylinder 1 is threadedly connected with the external thread ring 303 of the filter element 302 for subsequent disassembly.

[0037] Refer to Figures 1-4 , based on the same concept as in the above-mentioned Embodiment 1, this embodiment also proposes that the top of the collecting cylinder 102 is provided with an opening and is fixedly connected to the bottom of the filtering cylinder 1.

[0038] Specifically, the working process or principle of the filter assembly for a hydraulic oil pump is as follows: During use, hydraulic oil is introduced into the filter cylinder 1 through the input pipe 209 on the plug rod ring 104. The hydraulic oil first enters the bottom of the inner wall of the filter cylinder 1. After reaching the lowest point of the filter element 302, the preliminary filtering work is carried out through the filter element 302. When there is a little impurity attachment and blockage at this part of the filter element 302, the flow rate becomes low. Since the input flow rate remains unchanged, the liquid level will rise. The floating ball 206 floating on the liquid surface will move upward, driving the input pipe 209 port in the first pipe sleeve 207 to move upward. During this process, the roller 204 moves in the vertical plate 301, providing a stable upward limit effect to prevent it from rotating randomly. The bottom of the input pipe 209 is at the same horizontal plane as the floating ball 206, thereby achieving the purpose of adjusting the height of the input port, so that the hydraulic oil always filters from the lowest point of the effective part of the filter element 302 after being injected into the device. During this process, the hydraulic oil passes through the filter element 302 from bottom to top. The achieved effect is that during the filtering work, a part of the filter element 302 is in a working state. As impurities attach to the filter element 302, the flow rate passing through the lower part of the filter element 302 decreases, then the input liquid will rise, and after rising, it will flow through a new part of the filter element 302. A bottom suction water pump 211 is provided, which can pump the bottom liquid of the unfiltered hydraulic oil to the upper layer of the liquid through the coiling pipe 210, achieving the same oil transmission effect as the input pipe 209.

Claims

1. A filter assembly for a hydraulic oil pump, comprising a filter cartridge (1), characterized in that: A floating mechanism (2) is provided inside the filter cartridge (1). The floating mechanism (2) includes: a main shaft (201), an activity ring (202) is movably sleeved on the main shaft (201), and a first pipe sleeve (207) and a second pipe sleeve (208) are fixedly connected to the activity ring (202); a first connecting rod (203), a roller (204) is movably provided on the first connecting rod (203) through an inserting shaft; a second connecting rod (205), a floating ball (206) is fixedly connected to the end of the second connecting rod (205); an input pipe (209), one end of the input pipe (209) is arranged inside the inner ring of the first pipe sleeve (207); a winding pipe (210), one end of the winding pipe (210) is arranged inside the inner ring of the second pipe sleeve (208); a bottom suction water pump (211), the bottom suction water pump (211) is arranged at the bottom of the inner wall of the filter cartridge (1) through a suction cup.

2. The filtering assembly for a hydraulic oil pump according to claim 1, wherein, The first connecting rod (203) and the second connecting rod (205) are cross - arranged on the outer ring of the activity ring (202). A bearing is arranged inside the middle hole of the roller (204), the middle shaft of the roller (204) is fixedly connected to the outer ring of the bearing, and the rod body of the first connecting rod (203) is fixedly connected to the inner ring of the bearing.

3. The filtering assembly for a hydraulic oil pump according to claim 1, wherein, A cover plate (101) is provided at the top of the filter cartridge (1). The other end of the input pipe (209) penetrates to the upper surface of the cover plate (101). An inserting rod ring (104) is provided at the top of the input pipe (209). The lower end of the inserting rod ring (104) is movably inserted into the top of the cover plate (101), and the ring body of the inserting rod ring (104) is tightly inserted and connected to the top end of the input pipe (209).

4. A filter assembly for a hydraulic oil pump according to claim 1, characterized in that, A collecting cylinder (102) is provided at the bottom of the filter cartridge (1), and an output port (103) is provided on the side of the collecting cylinder (102).

5. The filtering assembly for a hydraulic oil pump according to claim 4, characterized in that, The output port (103) of the bottom suction water pump (211) is tightly inserted and connected to the bottom end of the winding pipe (210).

6. The filtering assembly for a hydraulic oil pump according to claim 5, wherein, A filtering mechanism (3) is provided at the bottom of the filter cartridge (1). The filtering mechanism (3) is provided with a vertical plate (301) located outside the outer ring of the main shaft (201), and the inner side of the vertical plate (301) is mutually lapped with the wheel body of the roller (204).

7. The filter assembly for a hydraulic oil pump according to claim 1, characterized in that, A filter element (302) is provided at the bottom of the inner wall of the filter cartridge (1). The bottom cylinder of the filter cartridge (1) is provided with an internal thread ring. An external thread ring (303) is fixedly connected to the bottom of the filter element (302). The internal thread ring of the filter cartridge (1) is thread - connected with the external thread ring (303) of the filter element (302).

8. A filter assembly for a hydraulic oil pump according to claim 4, characterized in that, The top of the collecting cylinder (102) is provided with an opening and is fixedly connected to the bottom of the filter cartridge (1).

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