Self-cooling type hydraulic equipment motor pump filtering assembly

Abstract

The invention relates to the field of hydraulic systems, and discloses a self-cooling type hydraulic equipment motor pump filtering assembly which comprises a hydraulic pump, the hydraulic pump is arranged at the front end of a motor body, the left end of the hydraulic pump is fixedly communicated with an oil inlet pipe, and the right side of the hydraulic pump is provided with a first filter; a glass fiber reinforced polyester filter element is fixed in the filter frame on the second sealing cover, and a glass fiber filter element is fixed in the filter frame on the third sealing cover. According to the oil filtering device, through cooperative use of the oil inlet pipe, the first filter, the oil outlet pipe, the second filter, a first conveying pipe, a third filter, a second conveying pipe, a third conveying pipe, a filtering frame, a stainless steel filter element, a glass fiber reinforced polyester filter element and a glass fiber filter element, multi-stage filtering of oil is achieved, the filtering effect is improved, the cleanliness of the oil can be ensured, and the oil filtering device is suitable for being used for oil filtering. The service life of hydraulic elements is prolonged, and the stability and reliability of the system are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hydraulic systems, in particular to a self-cooling type hydraulic equipment motor pump filtering assembly. BACKGROUND

[0002] The motor pump system of hydraulic equipment is a power transmission and control system widely used in industrial machinery, engineering machinery, aerospace and other fields. Its core function is to convert mechanical energy into hydraulic energy, transmit power through hydraulic oil, and realize precise control of various mechanical components. The motor pump, as the power source of the system, its performance directly affects the stability and efficiency of the entire hydraulic system. In the hydraulic system, the quality of the hydraulic oil is crucial to the system performance. Impurities, particles, moisture and other pollutants that may be contained in the hydraulic oil can accelerate the wear of hydraulic components, leading to a decrease in system efficiency, and even cause failures.

[0003] At present, most of the self-cooling type hydraulic equipment motor pump filtering assemblies usually use single-stage filter cartridges to filter oil when in use, therefore, there are the following shortcomings: the single-stage filtering mode reduces the filtering effect of the oil, cannot ensure the cleanliness of the oil, and leads to a decrease in the stability and reliability of the system. SUMMARY

[0004] The purpose of the present application is to provide a self-cooling type hydraulic equipment motor pump filtering assembly to solve the problem that the single-stage filtering mode reduces the filtering effect of the oil, cannot ensure the cleanliness of the oil, and leads to a decrease in the stability and reliability of the system.

[0005] In order to achieve the above-mentioned purpose of the application, the following technical scheme is adopted: a self-cooling type hydraulic equipment motor pump filter assembly, comprising a hydraulic pump, the hydraulic pump is arranged at the front end of the motor body, the left end of the hydraulic pump is communicated and fixed with an oil inlet pipe, the right side of the hydraulic pump is provided with a first filter, the first filter and the hydraulic pump are communicated and fixed with an oil outlet pipe, the top surface of the first filter is detachably provided with a first sealing cover, the right side of the first filter is provided with a second filter, the second filter and the first filter are communicated and fixed with a first conveying pipe, the top surface of the second filter is detachably provided with a second sealing cover, the right side of the second filter is provided with a third filter, the third filter and the second filter are communicated and fixed with a second conveying pipe, the top surface of the third filter is detachably provided with a third sealing cover, the right side of the third filter is communicated and fixed with a third conveying pipe, the inner top surface of the first sealing cover, the second sealing cover and the third sealing cover is respectively fixed with a filter holder, the inner part of the filter holder on the first sealing cover is fixed with a stainless steel filter core, the inner part of the filter holder on the second sealing cover is fixed with a glass fiber reinforced polyester filter core, and the inner part of the filter holder on the third sealing cover is fixed with a glass fiber filter core, so that multi-stage filtration of oil is realized, the filtering effect is improved, the cleanliness of the oil is ensured, the service life of the hydraulic element is prolonged, and the stability and reliability of the system are improved.

[0006] Preferably, the inner wall of the filter holder is respectively fixed with a piezoelectric ceramic piece on the front side and the back side, which effectively prevents the filter core from being blocked and ensures the continuous and efficient operation of the filtering system.

[0007] Preferably, the bottom surface of the first filter, the second filter and the third filter is provided with a blowdown hole, and the inner part of the blowdown hole is respectively fixed with a blowdown pipe, and the blowdown pipe is provided with a blowdown valve, which not only improves the maintenance efficiency, but also ensures the cleanliness and hygiene standard of the filtering system.

[0008] Preferably, the inner wall of the first sealing cover, the second sealing cover and the third sealing cover is provided with an internal thread, and the outer wall of the first filter, the second filter and the third filter is provided with an external thread, and the external thread is respectively threadedly connected with the internal thread, so that the filter holder, the stainless steel filter core, the glass fiber reinforced polyester filter core and the glass fiber filter core can be cleaned or replaced, the maintenance efficiency is improved, and the maintenance cost is reduced.

[0009] Preferably, the inner top surface of the first sealing cover, the second sealing cover and the third sealing cover is respectively fixed with a sealing ring, which prevents oil leakage, improves the safety and reliability of the filtering system, and ensures the stable operation of the system.

[0010] Preferably, a shaft coupling is arranged between the hydraulic pump and the output shaft of the motor body, which ensures the stable transmission between the hydraulic pump and the motor body.

[0011] Preferably, the hydraulic pump and the motor body are detachably provided with a pump cover, improving the safety and reliability of the hydraulic pump and the motor body.

[0012] Preferably, the front side and the rear side of the pump cover are respectively threadedly connected with a plurality of bolts, and the rear side of the hydraulic pump and the front side of the motor body are respectively provided with a plurality of threaded grooves, and the threaded ends of the plurality of bolts are respectively threadedly connected with the interiors of the plurality of threaded grooves, so that the disassembly and assembly of the pump cover become simple and fast, improving the maintenance efficiency.

[0013] Preferably, the outer walls of the first sealing cover, the second sealing cover and the third sealing cover are respectively fixed with a plurality of rubber blocks, and the outer walls of the plurality of rubber blocks are all provided with anti-skid lines, so as to increase the friction force through the rubber blocks and the anti-skid lines and prevent hand slipping.

[0014] Compared with the prior art, the present application has the following beneficial effects:

[0015] I. In use, through the cooperation of the oil inlet pipe, the first filter, the oil outlet pipe, the second filter, the first conveying pipe, the third filter, the second conveying pipe, the third conveying pipe, the filter frame, the stainless steel filter element, the glass fiber reinforced polyester filter element and the glass fiber filter element, multi-stage filtration of oil is realized, the filtering effect is improved, the cleanliness of the oil is ensured, the service life of the hydraulic element is prolonged, and the stability and reliability of the system are improved.

[0016] II. In use, when the system is working, the piezoelectric ceramic sheet converts electrical signals into high-frequency mechanical vibrations through the inverse piezoelectric effect. Such high-frequency vibrations can trigger ultrasonic oscillation, causing metal debris, rubber particles and other pollutants on the stainless steel filter element, the glass fiber reinforced polyester filter element or the glass fiber filter element to fall off, effectively preventing the blockage of the filter element and ensuring the continuous and efficient operation of the filtration system. Through the cooperation of the blowdown hole, the blowdown pipe and the blowdown valve, the pollutants inside the first filter, the second filter and the third filter can be discharged, which not only improves the maintenance efficiency, but also ensures the cleanliness and hygiene standard of the filtration system.

[0017] III. In use, the inner thread and the outer thread are used in cooperation, which facilitates the workers to disassemble and assemble the first sealing cover, the second sealing cover and the third sealing cover, and then facilitates the cleaning or replacement of the filter frame, the stainless steel filter element, the glass fiber reinforced polyester filter element and the glass fiber filter element, improves the maintenance efficiency and reduces the maintenance cost. The sealing ring can ensure the sealing between the sealing cover and the filter when they are tightly matched, prevent oil leakage, improve the safety and reliability of the filtration system, and ensure the stable operation of the system. The coupling facilitates the transmission of the torque of the motor body, and allows certain axial, radial and angular displacement to compensate for installation errors and displacement during operation, ensuring stable transmission between the hydraulic pump and the motor body;

[0018] IV. In use, the pump cover protects the hydraulic pump and the motor body from external environmental interference and damage, improving the safety and reliability of the hydraulic pump and the motor body. The cooperation of the bolt and the thread groove facilitates the workers to disassemble and assemble the pump cover, making the disassembly and assembly of the pump cover simple and fast, improving the maintenance efficiency. The cooperation of the rubber block and the anti-slip pattern facilitates the workers to rotate the first sealing cover, the second sealing cover or the third sealing cover, and increases the friction force through the rubber block and the anti-slip pattern to prevent hand slipping. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a perspective view of the invention;

[0020] Figure 2 is a split view of the invention;

[0021] Figure 3 is a sectional view of the first filter and the first sealing cover of the invention;

[0022] Figure 4 is a split view of the filter frame of the invention;

[0023] Figure 5 is a split view of the Figure 2 is an enlarged view of A in the invention;

[0024] Figure 6 is a split view of the Figure 2 is an enlarged view of B in the invention.

[0025] As shown in the figure, a self-cooling hydraulic equipment motor pump filter assembly, comprising a hydraulic pump 1, the hydraulic pump 1 is arranged at the front end of the motor body 2, the left end of the hydraulic pump 1 is communicated and fixed with an oil inlet pipe 3, the right side of the hydraulic pump 1 is provided with a first filter 4, the first filter 4 is communicated and fixed with an oil outlet pipe 5 between the first filter 4 and the hydraulic pump 1, the top surface of the first filter 4 is detachably provided with a first sealing cover 6, the right side of the first filter 4 is provided with a second filter 7, the second filter 7 is communicated and fixed with a first conveying pipe 8 between the second filter 7 and the first filter 4, the top surface of the second filter 7 is detachably provided with a second sealing cover 9, the right side of the second filter 7 is provided with a third filter 10, the third filter 10 is communicated and fixed with a second conveying pipe 11 between the third filter 10 and the second filter 7, the top surface of the third filter 10 is detachably provided with a third sealing cover 12, the right side of the third filter 10 is communicated and fixed with a third conveying pipe 13, the inner top surface of the first sealing cover 6, the second sealing cover 9 and the third sealing cover 12 is respectively fixed with a filter frame 14, the inner part of the filter frame 14 on the first sealing cover 6 is fixed with a stainless steel filter element 15, the inner part of the filter frame 14 on the second sealing cover 9 is fixed with a glass fiber reinforced polyester filter element 16, the inner part of the filter frame 14 on the third sealing cover 12 is fixed with a glass fiber filter element 17. DETAILED DESCRIPTION

[0026] The preferred embodiments of the present application will be described in detail below with reference to the drawings.

[0027] As Figures 1-6 shown, a self-cooling hydraulic equipment motor pump filter assembly, comprising a hydraulic pump 1, the hydraulic pump 1 is arranged at the front end of the motor body 2, the left end of the hydraulic pump 1 is communicated and fixed with an oil inlet pipe 3, the right side of the hydraulic pump 1 is provided with a first filter 4, the first filter 4 is communicated and fixed with an oil outlet pipe 5 between the first filter 4 and the hydraulic pump 1, the top surface of the first filter 4 is detachably provided with a first sealing cover 6, the right side of the first filter 4 is provided with a second filter 7, the second filter 7 is communicated and fixed with a first conveying pipe 8 between the second filter 7 and the first filter 4, the top surface of the second filter 7 is detachably provided with a second sealing cover 9, the right side of the second filter 7 is provided with a third filter 10, the third filter 10 is communicated and fixed with a second conveying pipe 11 between the third filter 10 and the second filter 7, the top surface of the third filter 10 is detachably provided with a third sealing cover 12, the right side of the third filter 10 is communicated and fixed with a third conveying pipe 13, the inner top surface of the first sealing cover 6, the second sealing cover 9 and the third sealing cover 12 is respectively fixed with a filter frame 14, the inner part of the filter frame 14 on the first sealing cover 6 is fixed with a stainless steel filter element 15, the inner part of the filter frame 14 on the second sealing cover 9 is fixed with a glass fiber reinforced polyester filter element 16, the inner part of the filter frame 14 on the third sealing cover 12 is fixed with a glass fiber filter element 17.

[0028] In use, the worker first firmly connects the oil inlet pipe 3 with the oil tank (not shown in the figure) to ensure that the oil can flow smoothly, then accurately connects the third conveying pipe 13 with the required part of the system to ensure that the filtered oil can be accurately delivered to the working area. After starting the motor body 2, the motor drives the hydraulic pump 1 to work, and the oil in the oil tank is delivered to the inside of the first filter 4 through the oil inlet pipe 3 and the oil outlet pipe 5. At this time, the stainless steel filter element 15 plays its interception role to conduct primary filtration on the large-particle contaminants in the oil, such as metal chips, rubber particles, etc., effectively removing these impurities that may damage the system. The first-stage filtered oil is delivered to the inside of the second filter 7 through the first conveying pipe 8. Here, the glass fiber reinforced polyester filter element 16 further intercepts sand particles, fibers and other medium-sized particles, significantly reducing the load of the final filter element, achieving secondary filtration and ensuring that the cleanliness of the oil is further improved. Subsequently, the second-stage filtered oil is delivered to the inside of the third filter 10 through the second conveying pipe 11. The glass fiber filter element 17 conducts the final third-stage filtration on the oil to remove small particles and residual impurities, and finally delivers the third-stage filtered clean oil to the required part of the system through the third conveying pipe 13. Through the cooperation of the oil inlet pipe 3, the first filter 4, the oil outlet pipe 5, the second filter 7, the first conveying pipe 8, the third filter 10, the second conveying pipe 11, the third conveying pipe 13, the filter holder 14, the stainless steel filter element 15, the glass fiber reinforced polyester filter element 16 and the glass fiber filter element 17, multi-stage filtration of the oil is realized, the filtration effect is improved, the cleanliness of the oil can be ensured, the service life of the hydraulic components is prolonged, and the stability and reliability of the system are improved.

[0029] As shown in Figures 1-5 , the inner walls of the plurality of filter holders 14 are respectively fixed with piezoelectric ceramic sheets 18 on the front side and the back side, the bottom surfaces of the first filter 4, the second filter 7 and the third filter 10 are respectively provided with dirt discharge holes 19, and the inner parts of the plurality of dirt discharge holes 19 are respectively fixed with dirt discharge pipes 20, and the plurality of dirt discharge pipes 20 are respectively provided with dirt discharge valves 21.

[0030] In use, when the system is working, the piezoelectric ceramic sheets 18 utilize the inverse piezoelectric effect to convert electrical signals into high-frequency mechanical vibrations. Such high-frequency vibrations can trigger ultrasonic oscillation to shake off the metal chips, rubber particles and other contaminants on the stainless steel filter element 15, the glass fiber reinforced polyester filter element 16 or the glass fiber filter element 17, effectively preventing the clogging of the filter element and ensuring the continuous and efficient operation of the filtration system. Through the cooperation of the dirt discharge holes 19, the dirt discharge pipes 20 and the dirt discharge valves 21, the contaminants inside the first filter 4, the second filter 7 and the third filter 10 can be discharged, which not only improves the maintenance efficiency, but also ensures the cleanliness and hygiene standard of the filtration system.

[0031] As shown in Figures 1-3 , Figure 5 andFigure 6 As shown, the inner wall of the first sealing cover 6, the second sealing cover 9 and the third sealing cover 12 is provided with an internal thread 22, the outer wall of the first filter 4, the second filter 7 and the third filter 10 is provided with an external thread 23, the external thread 23 is respectively screwed with the internal thread 22, the inner top surface of the first sealing cover 6, the second sealing cover 9 and the third sealing cover 12 is respectively fixed with a sealing ring 24, the output shaft of the hydraulic pump 1 and the motor body 2 is provided with a shaft coupling 25.

[0032] In use, the cooperation of the internal thread 22 and the external thread 23 facilitates the staff to disassemble and assemble the first sealing cover 6, the second sealing cover 9 and the third sealing cover 12, and then facilitates the cleaning or replacement of the filter frame 14, the stainless steel filter element 15, the glass fiber reinforced polyester filter element 16 and the glass fiber filter element 17, thereby improving the maintenance efficiency and reducing the maintenance cost. The sealing ring 24 facilitates the sealing between the sealing cover and the filter when they are tightly matched, and ensures the sealing between the two, preventing oil leakage and improving the safety and reliability of the filtering system, and ensuring the stable operation of the system. The shaft coupling 25 facilitates the transmission of the torque of the motor body 2, while allowing certain axial, radial and angular displacement to compensate for installation errors and displacement during operation, thereby ensuring stable transmission between the hydraulic pump 1 and the motor body 2.

[0033] As shown in Figures 1-3 , Figure 5 and Figure 6 , the hydraulic pump 1 and the motor body 2 are detachably provided with a pump cover 26, the front side and the rear side of the pump cover 26 are respectively screwed with a plurality of bolts 27, the rear side of the hydraulic pump 1 and the front side of the motor body 2 are respectively provided with a plurality of threaded grooves 28, the threaded ends of the plurality of bolts 27 are respectively screwed with the internal threads of the plurality of threaded grooves 28, the outer wall of the first sealing cover 6, the second sealing cover 9 and the third sealing cover 12 is respectively fixed with a plurality of rubber blocks 29, and the outer wall of the plurality of rubber blocks 29 is provided with anti-slip lines 30.

[0034] In use, the pump cover 26 protects the hydraulic pump 1 and the motor body 2 from external environmental interference and damage, thereby improving the safety and reliability of the hydraulic pump 1 and the motor body 2. The cooperation of the bolts 27 and the threaded grooves 28 facilitates the staff to disassemble and assemble the pump cover 26, making the disassembly and assembly of the pump cover 26 simple and fast, thereby improving the maintenance efficiency. The cooperation of the rubber blocks 29 and the anti-slip lines 30 facilitates the staff to rotate the first sealing cover 6, the second sealing cover 9 or the third sealing cover 12, and increases the friction force through the rubber blocks 29 and the anti-slip lines 30 to prevent hand slipping.

[0035] The above merely describes preferred specific embodiments of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art, according to the technical solution and inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A self-cooled hydraulic equipment motor pump filter assembly, comprising a hydraulic pump (1), said hydraulic pump (1) being disposed at the front end of a motor body (2), characterized in that, The hydraulic pump (1) has an inlet pipe (3) fixedly connected to its left end. A first filter (4) is located on the right side of the hydraulic pump (1). An outlet pipe (5) is fixedly connected between the first filter (4) and the hydraulic pump (1). A first sealing cap (6) is detachably mounted on the top surface of the first filter (4). A second filter (7) is located on the right side of the first filter (4). A first delivery pipe (8) is fixedly connected between the second filter (7) and the first filter (4). A second sealing cap (9) is detachably mounted on the top surface of the second filter (7). A third filter (10) is located on the right side of the second filter (7). The third filter (10) is connected to the second filter (4). 7) A second conveying pipe (11) is fixedly connected between them. A third sealing cover (12) is detachably provided on the top surface of the third filter (10). A third conveying pipe (13) is fixedly connected to the right side of the third filter (10). Filter frames (14) are fixed on the inner top surfaces of the first sealing cover (6), the second sealing cover (9), and the third sealing cover (12). A stainless steel filter element (15) is fixed inside the filter frame (14) on the first sealing cover (6). A glass fiber reinforced polyester filter element (16) is fixed inside the filter frame (14) on the second sealing cover (9). A glass fiber filter element (17) is fixed inside the filter frame (14) on the third sealing cover (12).

2. The self-cooling hydraulic equipment motor pump filter assembly according to claim 1, characterized in that: Several filter frames (14) have piezoelectric ceramic sheets (18) fixed to the front and rear sides of their inner walls, respectively.

3. The self-cooling hydraulic equipment motor pump filter assembly according to claim 2, characterized in that: The bottom surfaces of the first filter (4), the second filter (7), and the third filter (10) are provided with drain holes (19), and drain pipes (20) are fixed inside the drain holes (19), and drain valves (21) are provided on the drain pipes (20).

4. The self-cooling hydraulic equipment motor pump filter assembly according to claim 3, characterized in that: The inner walls of the first sealing cover (6), the second sealing cover (9), and the third sealing cover (12) are all provided with internal threads (22), and the outer walls of the first filter (4), the second filter (7), and the third filter (10) are all provided with external threads (23). Several of the external threads (23) are respectively threaded to the internal threads (22).

5. The self-cooling hydraulic equipment motor pump filter assembly according to claim 4, characterized in that: The inner top surfaces of the first sealing cover (6), the second sealing cover (9), and the third sealing cover (12) are respectively fixed with sealing rings (24).

6. The self-cooling hydraulic equipment motor pump filter assembly according to claim 5, characterized in that: A coupling (25) is provided between the output shaft of the hydraulic pump (1) and the motor body (2).

7. The self-cooling hydraulic equipment motor pump filter assembly according to claim 1, characterized in that: A pump cover (26) is detachably provided between the hydraulic pump (1) and the motor body (2).

8. A self-cooling hydraulic equipment motor pump filter assembly according to claim 7, characterized in that: The front and rear sides of the pump cover (26) are respectively threaded with a number of bolts (27). The rear side of the hydraulic pump (1) and the front side of the motor body (2) are respectively provided with a number of threaded grooves (28). The threaded ends of the bolts (27) are respectively threaded into the internal threads of the threaded grooves (28).

9. A self-cooling hydraulic equipment motor pump filter assembly according to claim 7, characterized in that: The outer walls of the first sealing cover (6), the second sealing cover (9), and the third sealing cover (12) are respectively fixed with a number of rubber blocks (29), and the outer walls of the rubber blocks (29) are provided with anti-slip textures (30).

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