Intelligent cooling liquid circulating filtering device for large machine tool

By installing multiple combined filter cartridges and moving components on large machine tools, the intelligent coolant circulation filtration device solves the machine tool downtime problem caused by clogging of traditional filtration devices, realizes efficient and convenient circulation filtration of coolant, and reduces maintenance costs.

CN224129482UActive Publication Date: 2026-04-17WUHAN JIA YOUJIA EQUIP MFG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUHAN JIA YOUJIA EQUIP MFG CO LTD
Filing Date
2025-05-15
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

In the existing technology, traditional coolant filtration devices are prone to clogging after prolonged use, which requires frequent disassembly of the filter screen, affecting the working efficiency of the machine tool, and directly replacing the coolant will increase costs.

Method used

The filter cartridge assembly consists of multiple combined filter cartridges, combined with a lift pump and a moving component, to enable multiple filter cartridges to work in turn, avoiding machine tool shutdown when a single filter cartridge is blocked. The impurity coolant is delivered to different filter cartridges for filtration through a delivery pipe.

Benefits of technology

It enables continuous filtration of coolant without shutting down the machine, improves the convenience of the coolant circulation filtration device, reduces equipment downtime for maintenance, and lowers maintenance costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides an intelligent cooling liquid circulating filtering device for a large machine tool, which relates to the technical field of numerical control machine tools and comprises a shell, a filtering mechanism and a lifting pump, the filtering mechanism comprises a moving component and a filter cartridge component, the moving component is mounted at the bottom of a cover plate, and the filter cartridge component is connected with the moving component. The filter cartridge assembly is formed by splicing a plurality of combined filter cartridges, each combined filter cartridge comprises an inner filter cartridge and an outer filter cartridge, a lifting pump is arranged in the shell, a conveying pipe is arranged at the output end of the lifting pump, one end of the conveying pipe extends into the combined filter cartridges, a circulating mechanism is arranged on one side of the lower end of the shell, and the circulating mechanism is communicated with the shell and a cooling liquid storage tank of the large machine tool; according to the utility model, the filter cartridge assembly formed by splicing the plurality of combined filter cartridges is arranged, one end of the conveying pipe connected with the lifting pump extends into the plurality of combined filter cartridges, and the arranged moving assembly controls the filter cartridge assembly to move, so that the plurality of combined filter cartridges can work respectively.
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Description

Technical Field

[0001] This utility model relates to the field of CNC machine tool technology, and in particular to an intelligent coolant circulation filtration device for large machine tools. Background Technology

[0002] The coolant circulation and filtration device of an intelligent CNC machine tool is used to remove metal debris from the coolant. During the grinding process of metal using a machine tool, a large amount of heat is generated, which requires continuous heat exchange through coolant. During the heat exchange process, a large amount of metal debris is carried into the coolant. If coolant containing metal debris is used directly, friction will occur between the metal debris in the coolant and the workpiece being ground, thus affecting the cooling efficiency of the coolant on the workpiece. If the coolant containing metal debris is no longer used and new coolant is continuously added, the cost of grinding metal parts will increase.

[0003] Existing technologies involve filtering used coolant and then recirculating it into the coolant system for reuse. However, traditional filtration methods can lead to filter clogging over time, affecting coolant flow. This necessitates operator removal of the filter, which interrupts machine tool operation and reduces efficiency. Therefore, this invention proposes an intelligent coolant circulation and filtration device for large machine tools to address the shortcomings of existing technologies. Utility Model Content

[0004] To address the aforementioned problems, the purpose of this utility model is to provide an intelligent coolant circulation filtration device for large machine tools. This device consists of a filter cartridge assembly composed of multiple combined filter cartridges, with one end of a delivery pipe connected to a booster pump extending into the interior of the multiple combined filter cartridges. A movable component controls the movement of the filter cartridge assembly, allowing the coolant containing impurities output from one end of the delivery pipe to enter the multiple combined filter cartridges, enabling each filter cartridge to operate independently.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An intelligent coolant circulation filtration device for large machine tools includes a housing, a filtration mechanism, and a booster pump. The housing has a cover plate on top. The filtration mechanism includes a moving component and a filter cartridge assembly. The moving component is installed at the bottom of the cover plate. The filter cartridge assembly is connected to the moving component. The filter cartridge assembly is composed of multiple combined filter cartridges. Each combined filter cartridge includes an inner filter cartridge and an outer filter cartridge. The inner filter cartridge is located inside the outer filter cartridge. One end of the inner filter cartridge is detachably connected to one end of the inner filter cartridge of the outer filter cartridge. One end of the outer filter cartridge has an internal threaded connecting ring, and the other end has an external threaded connecting ring. Adjacent combined filter cartridges are connected to each other via external threaded connecting rings and internal threaded connecting rings. Each internal threaded connecting ring has a first through hole. The housing contains a booster pump. The input end of the booster pump is connected to the coolant collection tank of the large machine tool. The output end of the booster pump has a delivery pipe. One end of the delivery pipe extends into the interior of the multiple combined filter cartridges. A circulation mechanism is located on one side of the lower end of the housing, connecting the housing to the coolant storage tank of the large machine tool.

[0007] A further improvement is that a discharge hole is provided at the bottom of the end of the conveying pipe away from the output end of the booster pump, and there are multiple discharge holes.

[0008] A further improvement is that the moving component includes an end plate, a linear screw, a guide rod, a moving seat, and a hollow tube. The end plates are symmetrically arranged at the bottom of the cover plate. A linear screw is rotatably arranged between the two end plates. A guide rod is provided above the linear screw. A moving seat is threadedly connected to the linear screw. The moving seat is slidably connected to the guide rod. A hollow tube is provided at the bottom of the moving seat.

[0009] A further improvement is that: one end of the hollow tube is connected to the external threaded connecting ring at one end of the outer filter cartridge via a sealing plate, the sealing plate is provided with a second through hole, and one end of the conveying pipe extends from the inside of the hollow tube through the second through hole to the inside of multiple combined filter cartridges.

[0010] A further improvement is that the inner filter cartridge has a larger aperture than the outer filter cartridge, and a through groove adapted to the position and diameter of the outer filter cartridge is provided on one side wall of the outer shell.

[0011] A further improvement is that the circulation mechanism includes a circulation pump and a circulation pipe, a liquid collection hopper is provided at the bottom inside the outer casing, a circulation pump is provided on one side of the liquid collection hopper, and the circulation pump is connected to the inside of the liquid collection hopper and the coolant storage tank of the large machine tool through the circulation pipe.

[0012] The beneficial effects of this utility model are as follows: This utility model sets up a filter cartridge assembly composed of multiple combined filter cartridges, and extends one end of the delivery pipe connected to the lift pump into the interior of the multiple combined filter cartridges. The set up moving component controls the movement of the filter cartridge assembly, so that the coolant containing impurities output from one end of the delivery pipe can enter the multiple combined filter cartridges. The multiple combined filter cartridges can operate independently. When a single combined filter cartridge is disassembled, other combined filter cartridges can be used for filtration. This allows the machine tool to disassemble and clean the combined filter cartridges without stopping the machine. The coolant circulation filtration device is highly convenient to use. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural schematic diagram of the present utility model;

[0014] Figure 2 This is a schematic diagram showing the structural breakdown of this utility model;

[0015] Figure 3 This is a schematic diagram showing the disassembled structure of the filter cartridge assembly of this utility model;

[0016] Figure 4 This is a three-dimensional schematic diagram of the conveying pipe structure of this utility model;

[0017] Figure 5 This is a three-dimensional schematic diagram of the combined filter cartridge structure of this utility model.

[0018] The components are as follows: 1. Outer shell; 2. Lifting pump; 3. Moving assembly; 301. End plate; 302. Linear lead screw; 303. Guide rod; 304. Moving seat; 305. Hollow tube; 4. Filter cartridge assembly; 401. Inner filter cartridge; 402. Outer filter cartridge; 403. Internal threaded connecting ring; 404. External threaded connecting ring; 5. First through hole; 6. Delivery pipe; 7. Discharge hole; 8. Sealing plate; 9. Second through hole; 10. Through groove; 11. Circulation pump; 12. Circulation pipe; 13. Liquid collecting hopper; 14. Coolant storage tank; 15. Coolant collection tank; 16. Cover plate. Detailed Implementation

[0019] To deepen the understanding of this utility model, the following detailed description of the utility model will be provided in conjunction with the embodiments. These embodiments are only used to explain the utility model and do not constitute a limitation on the scope of protection of the utility model.

[0020] according to Figure 1-5As shown, this embodiment proposes an intelligent coolant circulation filtration device for large machine tools, including a housing 1, a filtration mechanism, and a booster pump 2. The housing 1 has a cover plate 16 on its top. The filtration mechanism includes a moving component 3 and a filter cartridge assembly 4. The moving component 3 is installed at the bottom of the cover plate 16. The filter cartridge assembly 4 is connected to the moving component 3. The filter cartridge assembly 4 is composed of multiple combined filter cartridges. The combined filter cartridge includes an inner filter cartridge 401 and an outer filter cartridge 402. The inner filter cartridge 401 is located inside the outer filter cartridge 402. One end of the inner filter cartridge 401 is detachably connected to one end of the outer filter cartridge 402. One end of the outer filter cartridge 402 has an internal thread. The outer filter cartridge 402 is provided with an external threaded connecting ring 404 at the other end. The outer filter cartridges 402 of adjacent combined filter cartridges are connected to the internal threaded connecting ring 403 through the external threaded connecting ring 404. The internal threaded connecting ring 403 is provided with a first through hole 5. The housing 1 is provided with a lift pump 2. The input end of the lift pump 2 is connected to the coolant collection tank 15 of the large machine tool. The output end of the lift pump 2 is provided with a delivery pipe 6. One end of the delivery pipe 6 extends into the interior of multiple combined filter cartridges. The lower side of the housing 1 is provided with a circulation mechanism. The circulation mechanism connects the housing 1 with the coolant storage tank 14 of the large machine tool.

[0021] This invention relates to an intelligent coolant circulation and filtration device for large machine tools. When circulating and filtering coolant containing impurities collected in the coolant collection tank 15 of a large machine tool, the booster pump 2 pumps the coolant containing impurities into the rightmost set of combined filter cartridges via the delivery pipe 6. The inner filter cartridge 401 of this set performs the first filtration, followed by a second filtration via the outer filter cartridge 402. The filtered coolant is then pumped back to the coolant storage tank 14 of the large machine tool via the circulation mechanism. When the inner filter cartridge 401 and outer filter cartridge 402 of the current set of combined filter cartridges contain a large amount of impurities, the moving component 3 drives the entire filter cartridge assembly 4 to continue moving to the right. Since the delivery pipe 6 is fixed, its output end enters the next set of combined filter cartridges, which then perform coolant filtration. The set of combined filter cartridges containing impurities is removed from the housing 1 and can be taken out for cleaning by disassembling the set.

[0022] The bottom of the end of the delivery pipe 6 away from the output end of the booster pump 2 is provided with a discharge hole 7, and there are multiple discharge holes 7. The coolant containing impurities delivered by the delivery pipe 6 is discharged through the discharge holes 7 into the combined filter cartridge at the corresponding position for filtration.

[0023] The movable component 3 includes an end plate 301, a linear lead screw 302, a guide rod 303, a movable seat 304, and a hollow tube 305. The end plates 301 are symmetrically arranged at the bottom of the cover plate 16. A linear lead screw 302 is rotatably arranged between the two end plates 301. A guide rod 303 is provided above the linear lead screw 302. A movable seat 304 is threadedly connected to the linear lead screw 302. The movable seat 304 is slidably connected to the guide rod 303. A hollow tube 305 is provided at the bottom of the movable seat 304. In this utility model, the linear lead screw 302 is driven by a motor. When the linear lead screw 302 rotates, it drives the movable seat 304 to move. The movable seat 304 slides synchronously with the guide rod 303 to achieve movement guidance. The filter cartridge assembly 4 connected to the hollow tube 305 will move synchronously as a whole.

[0024] One end of the hollow tube 305 is connected to the external threaded connecting ring 404 at one end of the outer filter cartridge 402 via a sealing plate 8. The sealing plate 8 is provided with a second through hole 9. One end of the conveying pipe 6 passes through the interior of the hollow tube 305 and extends from the second through hole 9 into the interior of multiple combined filter cartridges. The arrangement of the first through hole 5 and the second through hole 9 ensures that the overall movement of the filter cartridge assembly 4 is not interfered with by the conveying pipe 6.

[0025] The inner filter cartridge 401 has a larger aperture than the outer filter cartridge 402. A through groove 10, matching the position and diameter of the outer filter cartridge 402, is provided on one side wall of the outer casing 1. When a set of combined filter cartridges containing impurities is moved out of the outer casing 1, specifically from the through groove 10, the combined filter cartridges are then rotated to separate the external threaded connecting ring 404 at one end of the outer filter cartridge 402 from the internal threaded connecting ring 403 of the other set of outer filter cartridges 402.

[0026] The circulation mechanism includes a circulation pump 11 and a circulation pipe 12. A liquid collection hopper 13 is located at the lower part of the outer casing 1. The circulation pump 11 is located on one side of the liquid collection hopper 13. The circulation pump 11 is connected to the inside of the liquid collection hopper 13 and the coolant storage tank 14 of the large machine tool via the circulation pipe 12. By starting the circulation pump 11, the coolant filtered inside the liquid collection hopper 13 via the circulation pipe 12 can be pumped back to the coolant storage tank 14 of the large machine tool for recycling.

[0027] This invention features a filter cartridge assembly 4 composed of multiple combined filter cartridges. One end of a delivery pipe connected to a booster pump 2 extends into the interior of the multiple combined filter cartridges. A movable component controls the movement of the filter cartridge assembly 4, allowing the coolant containing impurities output from one end of the delivery pipe to enter the multiple combined filter cartridges. The multiple combined filter cartridges can operate independently. When a single combined filter cartridge is disassembled, other combined filter cartridges can be used for filtration. This allows the machine tool to disassemble and clean the combined filter cartridges without stopping the machine. The coolant circulation filtration device is highly convenient to use.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An intelligent coolant circulation filtration device for large machine tools, characterized by: The system includes a housing (1), a filtration mechanism, and a booster pump (2). The housing (1) has a cover plate (16) on top. The filtration mechanism includes a moving component (3) and a filter cartridge assembly (4). The moving component (3) is installed at the bottom of the cover plate (16). The filter cartridge assembly (4) is connected to the moving component (3). The filter cartridge assembly (4) is composed of multiple combined filter cartridges. The combined filter cartridge includes an inner filter cartridge (401) and an outer filter cartridge (402). The outer filter cartridge (402) has an inner filter cartridge (401) inside it. One end of the inner filter cartridge (401) is detachably connected to one end of the outer filter cartridge (402). One end of the outer filter cartridge (402) is provided with an internally threaded connecting ring (403). (402) The other end is provided with an external threaded connecting ring (404). The outer filter cylinders (402) of the adjacent combined filter cylinders are connected to the internal threaded connecting ring (403) through the external threaded connecting ring (404). The internal threaded connecting ring (403) is provided with a first through hole (5). The housing (1) is provided with a lift pump (2). The input end of the lift pump (2) is connected to the coolant collection tank (15) of the large machine tool. The output end of the lift pump (2) is provided with a delivery pipe (6). One end of the delivery pipe (6) extends into the interior of multiple combined filter cylinders. The lower side of the housing (1) is provided with a circulation mechanism. The circulation mechanism connects the housing (1) with the coolant storage tank (14) of the large machine tool.

2. An intelligent coolant circulation filtering device for large machine tools as claimed in claim 1, wherein: The bottom of the end of the conveying pipe (6) away from the output end of the booster pump (2) is provided with a discharge hole (7), and there are multiple discharge holes (7).

3. An intelligent coolant circulation filtering device for large machine tools as claimed in claim 1, wherein: The moving component (3) includes an end plate (301), a linear screw (302), a guide rod (303), a moving seat (304), and a hollow tube (305). The end plates (301) are symmetrically arranged at the bottom of the cover plate (16). A linear screw (302) is rotatably arranged between the two end plates (301). A guide rod (303) is provided above the linear screw (302). A moving seat (304) is threadedly connected to the linear screw (302). The moving seat (304) is slidably connected to the guide rod (303). A hollow tube (305) is provided at the bottom of the moving seat (304).

4. An intelligent coolant circulation filtering device for large machine tools as claimed in claim 3, wherein: One end of the hollow tube (305) is connected to the external threaded connecting ring (404) at one end of the outer filter cartridge (402) via a sealing plate (8). The sealing plate (8) is provided with a second through hole (9). One end of the conveying pipe (6) passes through the interior of the hollow tube (305) and extends from the second through hole (9) into the interior of multiple combined filter cartridges.

5. An intelligent coolant circulation filtration device for large machine tools as claimed in claim 1, wherein: The inner filter cartridge (401) has a larger aperture than the outer filter cartridge (402), and a through groove (10) is provided on one side wall of the outer shell (1) to match the position and diameter of the outer filter cartridge (402).

6. An intelligent coolant circulation filtration device for large machine tools as claimed in claim 1, wherein: The circulation mechanism includes a circulation pump (11) and a circulation pipe (12). A liquid collection hopper (13) is provided at the bottom inside the outer shell (1). A circulation pump (11) is provided on one side of the liquid collection hopper (13). The circulation pump (11) is connected to the inside of the liquid collection hopper (13) and the coolant storage tank (14) of the large machine tool through the circulation pipe (12).