Hydraulic pump with filtering function

By introducing a conical filter frame and filter disc structure into the hydraulic pump, combined with a motor-driven bevel gear system, multi-stage filtration and easy cleaning are achieved, solving the problem of impurity clogging in the hydraulic pump and improving the stability and lifespan of the system.

CN224260501UActive Publication Date: 2026-05-19DAQING HONGBO SHENGDA PETROLEUM MASCH EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DAQING HONGBO SHENGDA PETROLEUM MASCH EQUIP CO LTD
Filing Date
2025-07-07
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Existing hydraulic pumps are prone to drawing in air and suspended particles during operation, which can clog the filter and affect the normal operation and lifespan of the hydraulic system.

Method used

A hydraulic pump with filtration function was designed. It adopts a conical filter frame and filter disc structure. The motor drives the bevel gear to rotate the bearing ring and connecting ring, increasing the filtration area. Combined with filter screens of different precision, it performs multi-stage filtration to achieve preliminary filtration and efficient cleaning of impurities.

Benefits of technology

It improves filtration efficiency, reduces clogging rate, enhances the stability and service life of hydraulic systems, and facilitates impurity cleaning and maintenance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of hydraulic pumps, and particularly relates to a hydraulic pump with a filtering function, which comprises a hydraulic pump, a filtering barrel is mounted at the top of the hydraulic pump, a motor is fixedly connected to one side of the filtering barrel, a first bevel gear is arranged in the filtering barrel, and the output end of the motor extends into the filtering barrel to be fixedly connected with the first bevel gear. A second bevel gear is arranged on one side of the first bevel gear and meshed with the first bevel gear, a connecting frame is fixedly connected to the end, away from the first bevel gear, of the second bevel gear, a bearing ring is fixedly connected to the outer side of the connecting frame, a connecting ring is mounted at the top of the bearing ring, and a conical filter frame is fixedly connected to the top of the connecting ring. According to the hydraulic pump with the filtering function, the filtering area can be increased by rotating the conical filtering frame, so that the filtering efficiency is improved, and the blocking rate of the filter is reduced.
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Description

Technical Field

[0001] This utility model relates to the field of hydraulic pump technology, and in particular to a hydraulic pump with a filtration function. Background Technology

[0002] A hydraulic pump is a mechanical device that converts liquid energy into mechanical energy. Its main function is to provide energy for the hydraulic system. Common hydraulic pumps can be divided into two groups: displacement type and pressure type. Displacement type hydraulic pumps draw hydraulic oil from the oil tank into the pump and discharge it to provide flow, while pressure type hydraulic pumps can provide high-pressure oil for operation.

[0003] Currently, displacement hydraulic pumps inevitably draw in air, suspended particles, and other impurities during operation. Some hydraulic pump filtration structures rely solely on a single filter screen. However, in actual operation, due to the relatively small pore size of the filter screen, when there are many suspended particles and impurities in the hydraulic oil inside the pump, these impurities will accumulate on the filter screen, causing a risk of blockage. This can affect the normal operation of the hydraulic system and even lead to malfunctions and damage. Therefore, there is an urgent need for a hydraulic pump with filtration capabilities to solve these problems. Utility Model Content

[0004] In order to overcome the defects of the prior art mentioned above, the inventors conducted in-depth research and, after a great deal of creative work, completed this utility model.

[0005] Specifically, the technical problem to be solved by this utility model is to provide a hydraulic pump with a filtration function to solve the technical problem that the current filtration relies solely on a single filter screen and is prone to clogging.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0007] A hydraulic pump with a filtration function includes a hydraulic pump, a filter barrel mounted on the top of the hydraulic pump, a motor fixedly connected to one side of the filter barrel, a first bevel gear inside the filter barrel, the output end of the motor extending into the filter barrel and fixedly connected to the first bevel gear, a second bevel gear on one side of the first bevel gear, the first bevel gear and the second bevel gear meshing with each other, a connecting frame fixedly connected to the end of the second bevel gear away from the first bevel gear, a bearing ring fixedly connected to the outer side of the connecting frame, a connecting ring mounted on the top of the bearing ring, and a conical filter frame fixedly connected to the top of the connecting ring.

[0008] As an improved technical solution, a rotating shaft is fixedly connected to the outer surface of the bearing ring. The rotating shaft is T-shaped, and the other end of the rotating shaft is located inside the filter barrel and is movably connected thereto. The bearing ring and the filter barrel are rotatably connected through the rotating shaft.

[0009] As an improved technical solution, the bearing ring has a slot inside, and the bottom of the connecting ring is fixedly connected to a strip. There are two sets of slots and strips, which correspond to each other. The strip is located inside the slot and is movably connected to it. Both the strip and the slot are hexagonal.

[0010] As an improved technical solution, the filter barrel is provided with a protective shell inside. The protective shell is located at the bottom of the bearing ring. Fixing rods are fixedly connected to both sides of the protective shell, and the other ends of the two sets of fixing rods are fixedly connected to the filter barrel.

[0011] As an improved technical solution, both the first bevel gear and the second bevel gear are located inside the protective housing and are movably connected to it. The output end of the motor extends into the interior of the protective housing and is fixedly connected to the first bevel gear. One end of the second bevel gear extends to the top of the protective housing and is fixedly connected to the connecting frame.

[0012] As an improved technical solution, the top of the conical filter frame is provided with a filter plate, the filter plate is located at the top of the filter barrel, the inner side of the connecting ring is provided with a first material storage groove, and the inner side of the filter plate is provided with a second material storage groove.

[0013] As an improved technical solution, the filter disc is internally connected with bolts arranged in a circular array. One end of each bolt penetrates the filter disc, extends to the top of the filter barrel, and is threaded thereon.

[0014] As an improved technical solution, a water inlet tank is fixedly connected to the top of the filter barrel, the filter disc is located inside the water inlet tank, and a partition is movably connected to the top of the water inlet tank.

[0015] After adopting the above technical solution, the beneficial effects of this utility model are:

[0016] 1. This utility model increases the filtration area by rotating the conical filter frame, thereby improving filtration efficiency and reducing the filter clogging rate.

[0017] 2. In this utility model, the filter disc can perform preliminary filtration of impurities. When used in conjunction with filter screens of different precision inside the conical filter frame, it can filter out particles and impurities of different levels and diameters, thereby improving filtration accuracy and ensuring the stability and service life of the hydraulic system.

[0018] 3. With this utility model, the positioning of the filter disc and filter barrel can be eliminated by unscrewing the bolts, and the limiting of the conical filter frame can also be eliminated. Then, the filter disc and the conical filter frame can be directly removed, thereby achieving the purpose of easy disassembly of the two for cleaning impurities and facilitating maintenance. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0020] Figure 1 This is a schematic diagram of the overall structure of the hydraulic pump with filtration function according to this utility model.

[0021] Figure 2 This is an exploded structural diagram of the filter barrel and water inlet tank of the hydraulic pump with filtration function according to this utility model.

[0022] Figure 3 This is a cross-sectional view of the filter barrel of the hydraulic pump with filtration function according to this utility model.

[0023] Figure 4 This is an exploded view of the conical filter frame and bearing ring of the hydraulic pump with filtration function according to this utility model.

[0024] Figure 5 This is a schematic diagram of the bearing ring and motor related structures of the hydraulic pump with filtration function according to this utility model.

[0025] Figure 6 This is a schematic diagram of the conical aluminum frame and connecting ring of the hydraulic pump with filtration function according to this utility model.

[0026] Figure 7 This is a schematic diagram of the filter disc and bolts of the hydraulic pump with filtration function according to this utility model.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. Hydraulic pump; 2. Filter barrel; 3. Motor; 4. First bevel gear; 5. Second bevel gear; 6. Connecting frame; 7. Bearing ring; 8. Connecting ring; 9. Conical filter frame; 10. Rotating shaft; 11. Slot; 12. Clip; 13. First storage trough; 14. Protective shell; 15. Fixing rod; 16. Filter disc; 17. Second storage trough; 18. Bolt; 19. Water inlet tank; 20. Partition plate. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0031] Meanwhile, the meaning of "and / or" or "and / or" appearing throughout the text is that it includes three options. Taking "A and / or B" as an example, it includes option A, option B, or an option that satisfies both A and B.

[0032] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0033] like Figures 1 to 7As shown in the figure, this embodiment provides a hydraulic pump with a filtering function. This hydraulic pump with a filtering function includes a hydraulic pump 1, a filter barrel 2 mounted on the top of the hydraulic pump 1, a motor 3 fixedly connected to one side of the filter barrel 2, a first bevel gear 4 provided inside the filter barrel 2, the output end of the motor 3 extending into the interior of the filter barrel 2 and fixedly connected to the first bevel gear 4, a second bevel gear 5 provided on one side of the first bevel gear 4, the first bevel gear 4 and the second bevel gear 5 meshing with each other, a connecting frame 6 fixedly connected to the end of the second bevel gear 5 away from the first bevel gear 4, a bearing ring 7 fixedly connected to the outer side of the connecting frame 6, a connecting ring 8 mounted on the top of the bearing ring 7, and a conical filter frame 9 fixedly connected to the top of the connecting ring 8. The filter barrel 2 is located at the inlet of the hydraulic pump 1. The conical filter frame 9 is equipped with filter screens of different precision, which can filter out particles and impurities of different levels and diameters, thereby improving the filtration accuracy and ensuring the stability and service life of the hydraulic system. At the same time, the design of the conical filter frame 9 can increase the filtration area, thereby improving the filtration efficiency and capacity, reducing the pressure loss of the hydraulic system, and adapting to high-flow hydraulic systems. The motor 3 can drive the first bevel gear 4, which in turn drives the second bevel gear 5 to rotate the bearing ring 7, so as to rotate the conical filter frame 9. The position of the conical filter frame 9 can be adjusted more flexibly, thereby increasing the filtration area, improving the filtration efficiency, and reducing the filter clogging rate.

[0034] A rotating shaft 10 is fixedly connected to the outer surface of the bearing ring 7. The rotating shaft 10 is T-shaped, and the other end of the rotating shaft 10 is located inside the filter barrel 2 and is movably connected to it. The bearing ring 7 and the filter barrel 2 are rotatably connected through the rotating shaft 10, which can provide support for the bearing ring 7 and make its rotation more stable.

[0035] The bearing ring 7 has a slot 11 inside, and the bottom of the connecting ring 8 is fixedly connected to a retaining strip 12. There are two sets of slots 11 and retaining strips 12, which correspond to each other. The retaining strip 12 is located inside the slot 11 and is movably connected to it. Both the retaining strip 12 and the slot 11 are hexagonal, which can increase the stability of the connection between the two. At the same time, it can drive the connecting ring 8 to rotate when the bearing ring 7 rotates.

[0036] The filter barrel 2 is equipped with a protective shell 14, which is located at the bottom of the bearing ring 7. Both sides of the protective shell 14 are fixedly connected with fixing rods 15. The other ends of the two sets of fixing rods 15 are fixedly connected to the filter barrel 2 to facilitate the positioning of the protective shell 14 and provide it with support.

[0037] Both the first bevel gear 4 and the second bevel gear 5 are located inside the protective housing 14 and are movably connected to it. The output end of the motor 3 extends into the interior of the protective housing 14 and is fixedly connected to the first bevel gear 4. One end of the second bevel gear 5 extends to the top of the protective housing 14 and is fixedly connected to the connecting frame 6. The output end of the motor 3 and one end of the second bevel gear 5 are both movably connected to the protective housing 14. The protective housing 14 can provide support for the first bevel gear 4 and the second bevel gear 5, and at the same time prevent water or oil from directly contacting them, thereby protecting them during operation.

[0038] The top of the conical filter frame 9 is provided with a filter plate 16, which is located at the top of the filter barrel 2. The inner side of the connecting ring 8 is provided with a first storage groove 13, and the inner side of the filter plate 16 is provided with a second storage groove 17. The first storage groove 13 and the second storage groove 17 can store impurities. At the same time, the filter plate 16 can provide support and positioning for the conical filter frame 9, making its connection with the bearing ring 7 more stable. In addition, the filter plate 16 can perform preliminary filtration of large particle impurities. When used in conjunction with the conical filter frame 9, the filtration effect can be improved.

[0039] The filter disc 16 is internally connected with bolts 18 arranged in a circular array. One end of the bolts 18 passes through the filter disc 16 and extends to the top of the filter barrel 2, where they are threaded together. This facilitates the fixing and disassembly of the filter disc 16 and the conical filter frame 9, thereby making it easier to clean the concentrated impurities.

[0040] The top of the filter tank 2 is fixedly connected to the water inlet tank 19. The filter disc 16 is located inside the water inlet tank 19. The top of the water inlet tank 19 is movably connected to the partition 20. The partition 20 and the water inlet tank 19 are slidably connected. When the partition 20 slides out of the water inlet tank 19, it is convenient to drive the bolt 18, so as to facilitate the installation and disassembly of the filter disc 16 and the conical filter frame 9. When the partition 20 is installed inside the water inlet tank 19, it is convenient to connect to the external water pipe.

[0041] When in use, connect the external water pipe to the partition 20, and start the motor 3 to drive the first bevel gear 4 to rotate, and drive the second bevel gear 5 to drive the bearing ring 7 to rotate inside the filter barrel 2 via the connecting frame 6 and the rotating shaft 10. Since the connecting ring 8 and the bearing ring 7 are connected to the slot 11 via the locking strip 12, when the bearing ring 7 rotates, it will drive the connecting ring 8 and the conical filter frame 9 to rotate. In this way, the filtration area can be increased, thereby improving the filtration efficiency and reducing the filter clogging rate.

[0042] Meanwhile, the filter disc 16 can perform preliminary filtration of impurities. When used in conjunction with the filter screens of different precision inside the conical filter frame 9, it can filter out particles and impurities of different levels and diameters, thereby improving filtration accuracy and ensuring the stability and service life of the hydraulic system.

[0043] In addition, when replacing them, simply pull the partition plate 20 out to the outside of the water inlet tank 19 and unscrew the bolts 18 one by one to remove the positioning of the filter plate 16 and the filter barrel 2, and at the same time remove the limiting of the conical filter frame 9. Then, the filter plate 16 and the conical filter frame 9 can be removed directly, which can facilitate the disassembly of the two for cleaning impurities and for maintenance. During installation, the operation is reversed.

[0044] It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. Furthermore, it should be understood that after reading the technical description of this utility model, those skilled in the art can make various alterations, modifications, and / or variations to this utility model, and all such equivalent forms also fall within the scope of protection defined by the appended claims.

Claims

1. A hydraulic pump with a filtering function, characterized in that: The system includes a hydraulic pump (1), a filter barrel (2) mounted on the top of the hydraulic pump (1), a motor (3) fixedly connected to one side of the filter barrel (2), a first bevel gear (4) inside the filter barrel (2), the output end of the motor (3) extending into the filter barrel (2) and fixedly connected to the first bevel gear (4), a second bevel gear (5) on one side of the first bevel gear (4), the first bevel gear (4) and the second bevel gear (5) meshing with each other, a connecting frame (6) fixedly connected to the end of the second bevel gear (5) away from the first bevel gear (4), a bearing ring (7) fixedly connected to the outside of the connecting frame (6), a connecting ring (8) mounted on the top of the bearing ring (7), and a conical filter frame (9) fixedly connected to the top of the connecting ring (8).

2. The hydraulic pump with filtration function according to claim 1, characterized in that: The outer surface of the bearing ring (7) is fixedly connected to a rotating shaft (10). The rotating shaft (10) is T-shaped. The other end of the rotating shaft (10) is located inside the filter barrel (2) and is movably connected to it. The bearing ring (7) and the filter barrel (2) are rotatably connected through the rotating shaft (10).

3. The hydraulic pump with filtration function according to claim 2, characterized in that: The bearing ring (7) has a slot (11) inside, and the bottom of the connecting ring (8) is fixedly connected to a strip (12). The slot (11) and the strip (12) are provided in two sets and correspond to each other. The strip (12) is located inside the slot (11) and is movably connected to it. The strip (12) and the slot (11) are both hexagonal.

4. The hydraulic pump with filtration function according to claim 3, characterized in that: The filter barrel (2) is provided with a protective shell (14) inside. The protective shell (14) is located at the bottom of the bearing ring (7). Both sides of the protective shell (14) are fixedly connected with fixing rods (15), and the other ends of the two sets of fixing rods (15) are fixedly connected to the filter barrel (2).

5. The hydraulic pump with filtration function according to claim 4, characterized in that: The first bevel gear (4) and the second bevel gear (5) are both located inside the protective shell (14) and are movably connected to it. The output end of the motor (3) extends into the interior of the protective shell (14) and is fixedly connected to the first bevel gear (4). One end of the second bevel gear (5) extends to the top of the protective shell (14) and is fixedly connected to the connecting frame (6).

6. The hydraulic pump with filtration function according to claim 1, characterized in that: The top of the conical filter frame (9) is provided with a filter plate (16), the filter plate (16) is located at the top of the filter barrel (2), the inner side of the connecting ring (8) is provided with a first storage groove (13), and the inner side of the filter plate (16) is provided with a second storage groove (17).

7. The hydraulic pump with filtration function according to claim 6, characterized in that: The filter disc (16) is internally connected to bolts (18), which are arranged in a ring array. One end of each bolt (18) passes through the filter disc (16) and extends to the top of the filter barrel (2), where it is threadedly connected.

8. The hydraulic pump with filtration function according to claim 7, characterized in that: The top of the filter bucket (2) is fixedly connected to a water inlet tank (19), the filter disc (16) is located inside the water inlet tank (19), and the top of the water inlet tank (19) is movably connected to a partition (20).