Hydraulic pump capable of efficiently and circularly filtering oil

Abstract

The utility model discloses a hydraulic pump capable of efficiently and circularly filtering oil, and relates to the technical field of mechanical equipment. The filter comprises a pump body, a main filter box and an auxiliary filter box are arranged on the front portion and the rear portion of one side of the pump body respectively, filter screens are slidably connected to one sides of the interiors of the main filter box and the auxiliary filter box, cleaning assemblies are arranged in the main filter box and the auxiliary filter box, and a third connecting pipe is arranged in the center of the outer wall of one side of the auxiliary filter box. A sealing assembly is arranged at one end of the third connecting pipe. The filter screen can be cleaned through the filter screen and the cleaning assembly, meanwhile, the filter screen can be detached in a sliding mode and replaced with a new filter screen, workers can conveniently and rapidly clean and replace the filter screen, the working efficiency is high, after the main filter box is blocked, filtered oil can be filtered again through the auxiliary filter box by means of the main filter box, the auxiliary filter box and the sealing assembly, and the working efficiency is improved. The main filter box and the auxiliary filter box are alternately used, so that the recycling of the filtered oil is not influenced, and the aim of continuously, efficiently and circularly filtering the oil is fulfilled.

Description

Technical Field

[0001] The utility model belongs to the technical field of mechanical equipment, in particular to a hydraulic pump with high-efficiency circulating oil filtering. Background Art

[0002] Various mechanical equipment are used in daily life and industrial production, and hydraulic pumps are one of them. A hydraulic pump is a hydraulic component that provides pressurized liquid for hydraulic transmission. It is a type of pump. The function of a hydraulic pump is to convert the mechanical energy of a power machine (such as an electric motor and an internal combustion engine, etc.) into the pressure energy of a liquid. A pump whose output flow can be adjusted as needed is called a variable pump, and a pump whose flow cannot be adjusted is called a fixed displacement pump. It is widely used in various fields.

[0003] A search revealed publication number CN117469148A, filed on November 24, 2023, which discloses a hydraulic pump with a filtering function. The invention comprises a hydraulic pump body, the liquid inlet of which is fixedly connected to a housing; a liquid inlet formed on one side of the housing for liquid entry; a filter screen fixedly mounted at the liquid outlet of the housing, located at the liquid inlet of the hydraulic pump body; a warning mechanism provided on the housing to alert users of increased pressure in the housing due to filter screen clogging; and a rotating mechanism internally provided within the housing that rotates in response to incoming liquid, the rotating mechanism being used to clean the water-facing surface of the filter screen. The present invention provides a hydraulic pump with a filtering function.

[0004] However, it still has the following disadvantages in actual use:

[0005] 1. The above-mentioned hydraulic pump with filtering function cleans the filter by rotating the mechanism during use. However, if the filter is not cleaned and blocked in time, this method will affect the oil flow of the filtered oil, and the filter cannot be quickly disassembled, installed, or replaced. At the same time, when the filter is blocked, a large amount of filtered oil will accumulate inside the box, which will affect the subsequent disassembly and cleaning of the filter.

[0006] 2. The aforementioned hydraulic pumps with filtration functions use an alarm mechanism to alert the operator when the filter is clogged. However, this approach requires the operator to clean the filter before continuing use, and does not achieve continuous and efficient oil circulation. To address this issue, we provide a hydraulic pump with efficient oil circulation to solve the above problem. Utility Model Content

[0007] The purpose of the utility model is to provide a hydraulic pump with efficient circulating oil filtering. By arranging a filter screen and a cleaning component, the filter screen can be cleaned, and the filter screen can be slid and removed and replaced with a new one, which is convenient for the staff to quickly clean and replace the filter screen, and the work efficiency is high. In addition, by using the main filter box, the auxiliary filter box and the sealing component, the filtered oil can be filtered again through the auxiliary filter box after the main filter box is blocked, so that the main filter box and the auxiliary filter box can be used alternately, which will not affect the circulating use of the filtered oil, and the purpose of continuous and efficient circulating oil filtering can be achieved.

[0008] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0009] The utility model is a hydraulic pump with high-efficiency circulating oil filtration, comprising a pump body and a main filter box and a secondary filter box respectively arranged at the front and rear of one side, a filter screen being slidably connected to one side of the interior of the main filter box and the secondary filter box, a cleaning assembly being arranged inside both the main filter box and the secondary filter box, a third connecting pipe being arranged at the center of the outer wall of one side of the secondary filter box, and a sealing assembly being arranged at one end of the third connecting pipe;

[0010] The cleaning assembly includes a hollow frame and a rotating shaft rotatably connected to a spline sleeve inside the hollow frame, and a fan blade is installed at one end of the rotating shaft;

[0011] The sealing assembly comprises a sealing cylinder and a sealing ball installed at one end thereof, and the other end of the sealing ball is provided with a second spring.

[0012] The utility model is further configured such that an oil suction port is provided at the top center position of the pump body, an oil outlet is provided at the top rear end of the pump body, and the other end of the oil suction port is connected to the first connecting pipe and the second connecting pipe respectively through a three-way joint.

[0013] The utility model is further configured such that the other ends of the first connecting pipe and the second connecting pipe are respectively connected to the oil outlet ends of the main filter box and the auxiliary filter box, and the other end of the third connecting pipe is respectively connected to the oil inlet pipe and the oil inlet end of the main filter box through a three-way joint.

[0014] The utility model is further configured such that the other end of the rotating shaft sequentially passes through the spline sleeve on the hollow frame and the bearing on the sealing plate to be connected to the filter housing, and a cleaning brush is installed at the center of the outer wall of the filter housing.

[0015] The utility model is further configured such that connecting rods are fixedly connected to the four corners of one end surface of the sealing plate, and the other end of the connecting rod passes through the through hole on the hollow frame and is connected to the limiting plate.

[0016] The utility model is further configured such that a first spring is sleeved on the outer side of the outer wall of the connecting rod, and the first spring is located between the hollow frame and the limiting plate.

[0017] The utility model is further configured such that the other end of the second spring is fixed on an inner wall of one side of the sealing cylinder, and the other end of the sealing cylinder is connected to the oil inlet end of the auxiliary filter box.

[0018] The utility model has the following beneficial effects:

[0019] 1. The utility model provides a filter screen and a cleaning component. Under the action of the elastic performance of the first spring, the sealing plate can be driven to move, thereby achieving or canceling the sealing effect of the sealing plate on the hollow frame. Then the filter screen can be slid and disassembled and replaced with a new one, which is convenient for the staff to quickly clean and replace the filter screen, and has high work efficiency. It solves the problem that the hydraulic pump with a filtering function cleans the filter screen through the rotating mechanism when in use. However, this method will affect the oil output of the filtered oil if the filter screen is not cleaned and blocked in time, and the filter screen cannot be quickly disassembled and replaced. At the same time, a large amount of filtered oil will accumulate inside the box after the filter screen is blocked, which will affect the subsequent disassembly and cleaning operations of the filter screen.

[0020] 2. The utility model provides a main filter box, a secondary filter box and a sealing assembly. Under the elastic performance of the second spring, the sealing ball can be moved, thereby achieving or canceling the sealing effect of the sealing ball on the sealing cylinder port, so that the filtered oil can enter the secondary filter box. After the main filter box is blocked, the filtered oil can be filtered again through the sealing assembly and the secondary filter box, so that the main filter box and the secondary filter box can be used alternately, which will not affect the recycling of the filtered oil and achieve the purpose of continuous and efficient circulation oil filtering. It solves the problem that the above-mentioned hydraulic pump with a filtering function reminds the staff through the reminder mechanism when the filter screen is blocked during use, and this method requires the staff to clean the filter screen before continuing to use, and cannot achieve continuous and efficient circulation oil filtering.

[0021] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 Schematic diagram of the structure of a hydraulic pump with high-efficiency circulating oil filtration.

[0024] Figure 2 This is the structural diagram of the pump body.

[0025] Figure 3 Structural diagram of the main filter box and the auxiliary filter box.

[0026] Figure 4 A cross-sectional view of the main filter box.

[0027] Figure 5 A disassembled diagram of the cleaning assembly.

[0028] Figure 6 A cross-sectional view of the sealing assembly.

[0029] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0030] 1- pump body, 101- oil suction port, 101a- first connecting pipe, 101b- second connecting pipe, 102- oil outlet, 2- main filter box, 201- filter screen, 3- secondary filter box, 301- third connecting pipe, 301a- oil inlet pipe, 4- cleaning assembly, 401- hollow frame, 402- rotating shaft, 402a- fan blade, 402b- filter housing, 402c- cleaning brush, 403- sealing plate, 404- connecting rod, 405- limiting plate, 406- first spring, 5- sealing assembly, 501- sealing cylinder, 502- sealing ball, 503- second spring. DETAILED DESCRIPTION

[0031] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] Example 1

[0033] See also Figures 1 to 5 The utility model is a hydraulic pump with high-efficiency circulating oil filtration, which includes a pump body 1 and a main filter box 2 and an auxiliary filter box 3 respectively arranged on the front and rear sides of one side. A filter screen 201 is slidably connected to one side of the main filter box 2 and the auxiliary filter box 3. A cleaning component 4 is provided inside the main filter box 2 and the auxiliary filter box 3; the cleaning component 4 includes a hollow frame 401 and a rotating shaft 402 rotatably connected to the spline sleeve inside the frame, and a fan blade 402a is installed at one end of the rotating shaft 402.

[0034] Specifically, an oil suction port 101 is provided at the top center of the pump body 1, and an oil outlet 102 is provided at the top rear end of the pump body 1. The other end of the oil suction port 101 is connected to the first connecting pipe 101a and the second connecting pipe 101b respectively through a three-way joint. The other ends of the first connecting pipe 101a and the second connecting pipe 101b are connected to the oil outlet ends of the main filter box 2 and the auxiliary filter box 3 respectively. The other end of the third connecting pipe 301 is connected to the oil inlet pipe 301a and the oil inlet end of the main filter box 2 respectively through a three-way joint. The other end of 02 passes through the spline sleeve on the hollow frame 401 and the bearing on the sealing plate 403 in sequence and is connected to the filter housing 402b. A cleaning brush 402c is installed at the center of the outer wall of the filter housing 402b. The four corners of the end face of one side of the sealing plate 403 are fixedly connected with a connecting rod 404. The other end of the connecting rod 404 passes through the through hole on the hollow frame 401 and is connected to the limit plate 405. A first spring 406 is sleeved on the outer side of the outer wall of the connecting rod 404, and the first spring 406 is located between the hollow frame 401 and the limit plate 405.

[0035] Furthermore, the internal structures of the main filter box 2 and the auxiliary filter box 3 are the same, and the two can be used interchangeably. The filtered oil can be filtered through the filter screen 201. There is a spline shaft in the middle section of the rotating shaft 402, and it can rotate and move under the action of the spline sleeve on the hollow frame 401. The three-way joint and the pipe joint both play the role of pipeline connection. The sealing plate 403 can seal the inner wall of the hollow plate. The sealing plate 403 can move inward when subjected to force. The sealing plate 403 and the limit plate 405 are connected by the connecting rod 404, which plays the role of connecting transmission. The sealing plate 403 can be driven to move under the action of the elastic performance of the first spring 406.

[0036] The operation process of this embodiment is as follows: when the pump body 1 is running, it first enters the main filter box 2 through the oil inlet pipe 301a. After the filtered oil enters, it drives the fan blades 402a on the rotating shaft 402 to rotate. After the filtered oil enters the main filter box 2, it generates pressure to press the sealing plate 403. The sealing plate 403 is forced to move toward the inside of the main filter box 2, and drives the rotating shaft 402 in its internal bearing to move, and makes the filter housing 402b and the fan blades 402a move inward, and at the same time makes the cleaning brush 402c on the filter housing 402b stick to the surface of the filter screen 201. When the sealing plate 403 moves, it drives the limit plate 405 to move under the action of the connecting rod 404, and squeezes the first spring 406. At this time, when the fan blades 402a rotate, they will press the rotating shaft Under the action of 402, the cleaning brush 402c is driven to rotate, so that the surface of the filter 201 can be cleaned. After the filter 201 is blocked, the filtered oil cannot pass through the filter 201, which will cause the filtered oil to accumulate inside the main filter box 2. At this time, the external pressure on the sealing plate 403 disappears, so under the elastic performance of the first spring 406, the sealing plate 403 is bounced to the initial position and fits on the outer wall of the hollow frame 401, so that the oil cannot pass through the hollow frame 401. At this time, the right side of the main filter box 2 has less filtered oil. At the same time, since the filter 201 is slidably connected to the inner side of the main filter box 2, the staff can quickly take out the filter 201, clean it and replace it, which is convenient for the staff to quickly clean and replace the filter 201, and the work efficiency is high.

[0037] Example 2

[0038] See also Figure 3 and Figure 6 On the basis of Example 1, what is different from the first embodiment is that: a secondary filter box 3 and a sealing assembly 5 are provided. The sealing assembly 5 includes a sealing cylinder 501 and a sealing ball 502 installed at one end thereof. The other end of the sealing ball 502 is provided with a second spring 503. This solves the problem that the existing hydraulic pump with a filtering function reminds the staff when the filter screen is clogged through the reminder mechanism during use, and this method requires the staff to clean the filter screen before continuing to use, and cannot achieve continuous and efficient circulation of oil filtration.

[0039] Specifically, the other end of the second spring 503 is fixed to an inner wall of one side of the sealing cylinder 501 , and the other end of the sealing cylinder 501 is connected to the oil inlet end of the auxiliary filter box 3 .

[0040] Furthermore, the sealing ball 502 can seal the port of the sealing cylinder 501. After the main filter box 2 is blocked, the filtered oil can enter the sealing cylinder 501 through the third connecting pipe 301 and generate pressure. Under the action of the elastic performance of the second spring 503, the sealing ball 502 can be driven to move.

[0041] The operating process of this embodiment is as follows: after the filter screen 201 inside the main filter box 2 is blocked, the filtered oil cannot enter the pump body 1 through the main filter box 2. At this time, the filtered oil will first enter the sealing cylinder 501 through the third connecting pipe 301, and the sealing ball 502 inside the sealing cylinder 501 will be forced to move to the other side and squeeze the second spring 503, thereby canceling the sealing effect of the sealing ball 502 on the port of the sealing cylinder 501. At this time, the filtered oil will enter the auxiliary filter box 3 through the sealing cylinder 501, wherein the structure inside the auxiliary filter box 3 is the same as that inside the main filter box 2, and then the filtered oil can enter the pump body 1 through the second connecting pipe 101b after being filtered under the action of the auxiliary filter box 3. Therefore, after the main filter box 2 is blocked, the filtered oil can be filtered again through the sealing assembly 5 and the auxiliary filter box 3, and the recycling of the filtered oil will not be affected, thereby achieving the purpose of continuous and efficient circulation of oil filtering.

[0042] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0043] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A hydraulic pump with high efficiency circulating oil filtration, comprising a pump body (1) and a main filter box (2) and a secondary filter box (3) provided at the front and rear of one side, characterized in that: A filter screen (201) is slidably connected to one side of the interior of the main filter box (2) and the auxiliary filter box (3); a cleaning assembly (4) is provided inside each of the main filter box (2) and the auxiliary filter box (3); a third connecting pipe (301) is provided at the center of the outer wall of one side of the auxiliary filter box (3); and a sealing assembly (5) is provided at one end of the third connecting pipe (301); The cleaning assembly (4) comprises a hollow frame (401) and a rotating shaft (402) rotatably connected to an internal spline sleeve thereof, wherein a fan blade (402a) is mounted on one end of the rotating shaft (402); The sealing assembly (5) comprises a sealing cylinder (501) and a sealing ball (502) installed at one end thereof, and a second spring (503) is provided at the other end of the sealing ball (502).

2. The high-efficiency circulating oil filtering hydraulic pump according to claim 1, characterized in that: An oil suction port (101) is provided at the top center of the pump body (1), an oil outlet (102) is provided at the top rear end of the pump body (1), and the other end of the oil suction port (101) is connected to the first connecting pipe (101a) and the second connecting pipe (101b) respectively through a three-way joint.

3. The high-efficiency circulating oil filtering hydraulic pump according to claim 2, characterized in that: The other ends of the first connecting pipe (101a) and the second connecting pipe (101b) are respectively connected to the oil outlet ends of the main filter box (2) and the auxiliary filter box (3), and the other end of the third connecting pipe (301) is respectively connected to the oil inlet pipe (301a) and the oil inlet end of the main filter box (2) through a three-way joint.

4. The high-efficiency circulating oil filtering hydraulic pump according to claim 1, characterized in that: The other end of the rotating shaft (402) sequentially passes through the spline sleeve on the hollow frame (401) and the bearing on the sealing plate (403) to be connected to the filter housing (402b). A cleaning brush (402c) is installed at the center of the outer wall of the filter housing (402b).

5. The high-efficiency circulating oil filtering hydraulic pump according to claim 4, characterized in that: Connecting rods (404) are fixedly connected to the four corners of one end surface of the sealing plate (403), and the other end of the connecting rod (404) passes through the through hole on the hollow frame (401) and is connected to the limiting plate (405).

6. The high-efficiency circulating oil filtering hydraulic pump according to claim 5, characterized in that: A first spring (406) is sleeved on the outer side of the outer wall of the connecting rod (404), and the first spring (406) is located between the hollow frame (401) and the limiting plate (405).

7. The high-efficiency circulating oil filtering hydraulic pump according to claim 6, characterized in that: The other end of the second spring (503) is fixed to an inner wall of one side of the sealing cylinder (501), and the other end of the sealing cylinder (501) is connected to the oil inlet end of the auxiliary filter box (3).

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