A directional drilling machine oil return filter

Abstract

This utility model relates to the field of coal mining machinery technology and discloses a return oil filter for a directional drilling rig, comprising: a fixed base plate, which is cylindrical; a fixing structure, which includes a first fixing part and a second fixing part. The first fixing part includes a first housing inside the fixed base plate, four sets of second snap-fit ​​plates are fixedly installed on the inner wall of the first housing, and second snap-fit ​​rod grooves are opened inside the second snap-fit ​​plates. A filter element housing is provided inside the first housing, and four sets of first limiting grooves are opened on the outer wall of the filter element housing. A first snap-fit ​​plate is fixedly installed inside the first limiting groove, and a first snap-fit ​​rod is fixedly installed at the bottom of the first snap-fit ​​plate. The first snap-fit ​​rod is snapped into the inside of the second snap-fit ​​rod groove, and the bottom of the first snap-fit ​​plate is in close contact with the top of the second snap-fit ​​plate. This achieves the purpose of limiting and fixing the device, improving the fixing strength of the device, reducing the positional displacement of the device, and improving the stability of the device in use.

Description

Technical Field

[0001] This utility model belongs to the field of coal mining machinery technology, specifically, it relates to a return oil filter for a directional drilling rig. Background Technology

[0002] In coal mining operations, directional drilling rigs play a crucial role, enabling precise drilling and providing strong support for coal exploration, gas extraction, and other operations. The hydraulic system of the directional drilling rig is its core power source for normal operation, and the return oil filter, as an important component of the hydraulic system, primarily functions to filter impurities in the return oil, preventing them from entering critical components such as the hydraulic pump and hydraulic valves. This ensures the stable operation of the hydraulic system and extends the service life of the equipment.

[0003] The utility model with announcement number CN217645946U relates to an oil return filter. One end of the mounting cylinder is fixedly connected to a mounting plate for mounting the entire device onto machinery. One side of one end of the filter cylinder is sealed with an oil inlet pipe head, and the other side of one end of the filter cylinder is sealed with an oil outlet pipe head. The oil inlet pipe head and the oil outlet pipe head are symmetrical to each other. Both sides of the other end of the mounting cylinder are provided with J-shaped grooves for engaging with the oil inlet pipe head and the oil outlet pipe head. A sealing seat is installed at the end of the filter cylinder, and the sealing seat is connected to the filter cylinder through a first sleeve. A filter screen cylinder is sleeved in the middle of the filter cylinder. A second transmission rod is provided at the axis of the filter screen cylinder. Several cleaning rods evenly distributed in a ring array are fixedly connected to the outer periphery of the second transmission rod. A push spring is compressed and pushes the filter cylinder, and the filter cylinder is stably installed in the mounting cylinder with the help of the J-shaped grooves, so that the inside of the filter cylinder can be cleaned quickly without opening the filter cylinder.

[0004] However, the aforementioned patent still has the following problems: During drilling operations, due to the vibration of the drilling rig and the complex geological conditions downhole, the return oil filter is prone to loosening. Once the filter becomes loose, it will lead to return oil leakage, which will not only waste hydraulic oil but may also cause safety accidents, such as hydraulic oil leakage causing fires. The return oil filter is not well fixed, and it is easy for the filter to shift during installation and disassembly, resulting in inaccurate installation position, increasing the difficulty of installation, and may also cause the filter to collide with surrounding components, damaging the filter or surrounding equipment.

[0005] In view of this, this utility model is hereby proposed. Utility Model Content

[0006] To solve the aforementioned technical problem of poor fixing effect of the return oil filter, the basic concept of the technical solution adopted by this utility model is as follows:

[0007] A return oil filter for a directional drilling rig, comprising:

[0008] A fixed base plate, which is cylindrical in shape;

[0009] The fixing structure includes a first fixing part and a second fixing part. The first fixing part includes a first housing inside a fixing base plate. Four sets of second snap-fit ​​plates are fixedly installed on the inner wall of the first housing. The second snap-fit ​​plates have second snap-fit ​​rod grooves inside. A filter element housing is provided inside the first housing. Four sets of first limiting grooves are provided on the outer wall of the filter element housing. A first snap-fit ​​plate is fixedly installed inside the first limiting groove. A first snap-fit ​​rod is fixedly installed at the bottom of the first snap-fit ​​plate. The first snap-fit ​​rod is snapped into the inside of the second snap-fit ​​rod groove. The bottom of the first snap-fit ​​plate is in close contact with the top of the second snap-fit ​​plate. The second fixing part includes a first connecting plate fixedly installed on the outer wall of the first housing. The first connecting plate has a second threaded groove inside. A second housing is provided on the top of the fixing base plate. A second connecting plate is fixedly installed on the outer wall of the second housing. A third threaded groove is provided at the bottom of the second connecting plate. Second limiting bolts are screwed into the second threaded groove and the third threaded groove.

[0010] In a preferred embodiment of this utility model, the second fixing part further includes a fourth threaded groove formed on the inner wall of the second housing, a sealing cover plate is provided on the top of the second housing, a threaded sleeve is fixedly installed on the bottom of the sealing cover plate, a damping spring rod is fixedly installed on the bottom of the sealing cover plate, a pressure block is fixedly installed on the bottom of the damping spring rod, the threaded sleeve is helically installed inside the fourth threaded groove, a filter element is provided inside the filter element housing, and the bottom of the pressure block is in close contact with the top of the filter element.

[0011] In a preferred embodiment of this utility model, a first limiting frame plate is fixedly installed on the outer wall of the fixed base plate. The first limiting frame plate has sixteen sets of first threaded grooves inside. A third limiting bolt is spirally installed inside the first threaded groove. An oil tank is provided outside the fixed base plate. A second limiting frame plate is fixedly installed on the top of the oil tank. The second limiting frame plate has sixteen sets of first threaded grooves inside. The third limiting bolt is spirally installed inside the first threaded groove.

[0012] In a preferred embodiment of the present invention, an opening is provided on the outer wall of the second housing, a first oil pipe is fixedly installed in the opening, a third connecting plate is fixedly installed on the outer wall of the first oil pipe, and four sets of fifth threaded grooves are provided inside the third connecting plate, with a first limiting bolt spirally installed inside the fifth threaded groove.

[0013] In a preferred embodiment of this utility model, a fourth connecting plate is provided on the outside of the fixed base plate, and four sets of sixth threaded grooves are opened inside the fourth connecting plate. The first limiting bolt is screwed into the inside of the sixth threaded groove, and a second oil pipe is fixedly installed inside the fourth connecting plate.

[0014] In a preferred embodiment of this utility model, the top of the filter element housing is provided with four sets of grooves, and a pull strap is fixedly installed in the grooves.

[0015] In a preferred embodiment of this utility model, two sets of handles are fixedly installed on the top of the sealing cover.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] 1. To achieve the purpose of limiting and fixing the device, improve the fixing strength of the device, reduce the impact of vibration on the position of the device, reduce the positional deviation of the device, and improve the stability of the device in use.

[0018] 2. To achieve the purpose of assisting in the fixing and quick-release installation of the return oil filter, thereby improving the installation efficiency, fixing strength, and safety of the device.

[0019] 3. To assist in handling the device, improve the ease of use of the device, facilitate regular replacement by installers, and optimize the user experience.

[0020] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0021] In the attached diagram:

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a schematic diagram showing the disassembled parts of this utility model;

[0024] Figure 3 This is a schematic diagram showing the disassembled first housing and filter housing of this utility model;

[0025] Figure 4 This is a schematic diagram of the first connecting rod structure of this utility model;

[0026] Figure 5 This is a schematic diagram showing the disassembled third connecting plate and fifth threaded groove of this utility model;

[0027] Figure 6 This is a schematic diagram of the damping spring rod structure of this utility model;

[0028] Figure 7 This is an enlarged view of part A of this utility model.

[0029] In the diagram: 10. Fixed base plate; 11. First limiting frame plate; 12. First threaded groove; 13. First housing; 14. First connecting plate; 15. Second threaded groove; 16. Filter element housing; 17. Pull belt; 18. Filter element; 19. First snap-fit ​​plate; 20. First snap-fit ​​rod; 21. First limiting groove; 22. Second connecting plate; 23. Third threaded groove; 24. Second housing; 25. Fourth threaded groove; 26. First oil delivery pipe; 27. Third connecting plate; 28. Fifth threaded groove; 29. ​​Fourth connecting plate; 30. Sixth threaded groove; 31. Second oil supply pipe; 32. Sealing cover plate; 33. Handle; 34. Threaded sleeve; 35. Damping spring rod; 36. Pressure block; 37. Second snap-fit ​​plate; 38. Second snap-fit ​​rod groove; 39. First limit bolt; 40. Second limit bolt; 41. Third limit bolt; 42. Oil tank; 43. Second limit frame plate. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model.

[0031] Example 1: A return oil filter for a directional drilling rig, specifically as follows... Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 7As shown, the system includes a fixed base plate 10, which is cylindrical in shape; and a fixing structure, which includes a first fixing part and a second fixing part. The first fixing part includes a first housing 13 inside the fixed base plate 10. Four sets of second snap-fit ​​plates 37 are fixedly installed on the inner wall of the first housing 13. The second snap-fit ​​plates 37 have second snap-fit ​​rod grooves 38 inside. A filter element housing 16 is provided inside the first housing 13. Four sets of first limiting grooves 21 are provided on the outer wall of the filter element housing 16. A first snap-fit ​​plate 19 is fixedly installed inside the first limiting groove 21. A first snap-fit ​​rod is fixedly installed at the bottom of the first snap-fit ​​plate 19. The connecting rod 20 is snapped into the inside of the second connecting rod groove 38, and the bottom of the first connecting plate 19 is in close contact with the top of the second connecting plate 37; the second fixing part includes a first connecting plate 14 fixedly installed on the outer wall of the first housing 13, the first connecting plate 14 has a second threaded groove 15 inside, the top of the fixing base plate 10 is provided with a second housing 24, the outer wall of the second housing 24 is fixedly installed with a second connecting plate 22, the bottom of the second connecting plate 22 has a third threaded groove 23, and the second limiting bolt 40 is screwed into the inside of the second threaded groove 15 and the third threaded groove 23. The filter is fixed by a fixed structure. The filter element housing 16 is placed inside the first housing 13. The first snap-fit ​​rod 20 is snapped into the second snap-fit ​​rod groove 38, so that the bottom of the first snap-fit ​​plate 19 is in close contact with the top of the second snap-fit ​​plate 37, thus limiting the filter element housing 16 inside the first housing 13. The second connecting plate 22 is placed on top of the first connecting plate 14. The second limiting bolt 40 is rotated and screwed into the third thread groove 23 and the second thread groove 15, thus limiting the filter element housing 16 inside the second housing 24.

[0032] Specifically, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 6 and Figure 7 As shown, the second fixing part also includes a fourth threaded groove 25 formed on the inner wall of the second housing 24. A sealing cover plate 32 is provided on the top of the second housing 24. A threaded sleeve 34 is fixedly installed on the bottom of the sealing cover plate 32. A damping spring rod 35 is fixedly installed on the bottom of the sealing cover plate 32. A pressure block 36 is fixedly installed on the bottom of the damping spring rod 35. The threaded sleeve 34 is screwed into the inside of the fourth threaded groove 25. A filter element 18 is provided inside the filter element housing 16. The bottom of the pressure block 36 is in close contact with the top of the filter element 18. By rotating the sealing cover plate 32, the threaded sleeve 34 is screwed into the inside of the fourth threaded groove 25, so that the bottom of the pressure block 36 is in close contact with the top of the filter element housing 16.

[0033] Based on the above, the structure consisting of a fixed base plate 10, a first housing 13, a first connecting plate 14, a second threaded groove 15, a filter element housing 16, a first snap-fit ​​plate 19, a first snap-fit ​​rod 20, a first limiting groove 21, a second connecting plate 22, a third threaded groove 23, a second housing 24, a fourth threaded groove 25, a sealing cover plate 32, a threaded sleeve 34, a damping spring rod 35, a pressure block 36, a second snap-fit ​​plate 37, a second snap-fit ​​rod groove 38, and a second limiting bolt 40 achieves the purpose of limiting and fixing the device, improving the fixing strength of the device, reducing the impact of vibration on the device's position, reducing the device's positional deviation, and improving the stability of the device in use.

[0034] Example 2: Based on Example 1, specifically as follows... Figure 1 , Figure 2 and Figure 3 As shown, a first limiting frame plate 11 is fixedly installed on the outer wall of the fixed base plate 10. The interior of the first limiting frame plate 11 has sixteen sets of first threaded grooves 12. A third limiting bolt 41 is screwed into the interior of each first threaded groove 12. An oil tank 42 is provided on the outside of the fixed base plate 10. A second limiting frame plate 43 is fixedly installed on the top of the oil tank 42. The interior of the second limiting frame plate 43 also has sixteen sets of first threaded grooves 12. The third limiting bolt 41 is screwed into the interior of each first threaded groove 12. The first limiting frame plate 11 is placed on top of the second limiting frame plate 43, and the third limiting bolt 41 is rotated to screw it into the interior of each first threaded groove 12, thus fixing the first limiting frame plate 11 to the top of the first housing 13.

[0035] Specifically, such as Figure 2 and Figure 5 As shown, an opening is provided on the outer wall of the second housing 24, and a first oil pipe 26 is fixedly installed in the opening. A third connecting plate 27 is fixedly installed on the outer wall of the first oil pipe 26. Four sets of fifth threaded grooves 28 are provided inside the third connecting plate 27, and a first limiting bolt 39 is spirally installed inside the fifth threaded grooves 28.

[0036] Specifically, such as Figure 2 and Figure 5 As shown, a fourth connecting plate 29 is provided on the outside of the fixed base plate 10. The fourth connecting plate 29 has four sets of sixth threaded grooves 30 inside. A first limiting bolt 39 is screwed into the inside of the sixth threaded groove 30. A second oil pipe 31 is fixedly installed inside the fourth connecting plate 29. The fourth connecting plate 29 and the third connecting plate 27 are brought close together. The first limiting bolt 39 is rotated, screwing it into the inside of the fifth threaded groove 28 and the sixth threaded groove 30. The second oil pipe 31 is then fixedly installed on the outer wall of the third connecting plate 27.

[0037] Based on the above, the structure consisting of a fixed base plate 10, a first limiting frame plate 11, a first threaded groove 12, a second housing 24, a first oil supply pipe 26, a third connecting plate 27, a fifth threaded groove 28, a fourth connecting plate 29, a sixth threaded groove 30, a second oil supply pipe 31, a first limiting bolt 39, a third limiting bolt 41, an oil tank 42, and a second limiting frame plate 43 achieves the purpose of auxiliary fixing and quick disassembly installation of the return oil filter, thereby improving the installation efficiency of the device, increasing the fixing strength of the device, and improving the safety of the device in use.

[0038] Example 3: Based on Examples 1 and 2, specifically as follows... Figure 3 As shown, the top of the filter element housing 16 has four sets of slots, and a pull strap 17 is fixedly installed in the slots. Pulling the pull strap 17 will remove the filter element housing 16 from inside the first housing 13.

[0039] Specifically, such as Figure 5 As shown, two sets of handles 33 are fixedly installed on the top of the sealing cover 32. By holding the handles 33, the sealing cover 32 is unscrewed from the inside of the fourth threaded groove 25.

[0040] In summary, the structure of the filter housing 16, pull strap 17, sealing cover 32, and handle 33 facilitates the handling of the device, improves its ease of use, makes it easier for installers to replace the device regularly, and optimizes the user experience.

[0041] Working principle: The filter element housing 16 is placed inside the first housing 13. The first locking rod 20 at the bottom of the first locking plate 19 on the outer wall of the filter element housing 16 is engaged into the second locking rod groove 38 on the second locking plate 37 on the inner wall of the first housing 13, and the bottom of the first locking plate 19 is in close contact with the top of the second locking plate 37, thereby confining the filter element housing 16 inside the first housing 13. The second connecting plate 22 on the outer wall of the second housing 24 is placed on top of the first connecting plate 14 on the outer wall of the first housing 13. The second limiting bolt 40 is rotated to screw it into place. Installed in the third threaded groove 23 at the bottom of the second connecting plate 22 and the second threaded groove 15 inside the first connecting plate 14, the filter element housing 16 is further confined inside the second housing 24. The sealing cover 32 is rotated, and its bottom threaded sleeve 34 is screwed into the fourth threaded groove 25 on the inner wall of the second housing 24. The pressure block 36 at the bottom of the damping spring rod 35 at the bottom of the sealing cover 32 descends with the installation of the sealing cover 32, finally pressing tightly against the top of the filter element 18 inside the filter element housing 16, thus achieving a tight fixation of the filter element 18. The first limiting frame plate 11 on the outer wall of the base plate 10 is placed on top of the second limiting frame plate 43 on top of the oil tank 42. The third limiting bolt 41 is rotated to screw it into the first threaded groove 12 inside the first limiting frame plate 11 and the second limiting frame plate 43, thus fixing the first limiting frame plate 11 to the top of the second limiting frame plate 43, thereby fixing the filter to the oil tank 42. The fourth connecting plate 29 is tightly attached to the third connecting plate 27 on the outer wall of the first oil pipe 26 on the outer wall of the second housing 24. The first limiting bolt 39 is rotated to screw it into... The second oil pipe 31 is fixedly installed on the outer wall of the third connecting plate 27 through the fifth threaded groove 28 inside the third connecting plate 27 and the sixth threaded groove 30 inside the fourth connecting plate 29, thus realizing the connection of the oil pipe. When it is necessary to disassemble the filter element housing 16, pull the pull strap 17 fixed in the groove at the top of the filter element housing 16 to take the filter element housing 16 out from the inside of the first housing 13. When it is necessary to disassemble the sealing cover plate 32, hold the two sets of handles 33 fixed at the top of the sealing cover plate 32 and unscrew the sealing cover plate 32 from the inside of the fourth threaded groove 25.

[0042] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A return oil filter for a directional drilling rig, characterized by, include: The base plate (10) is cylindrical; The fixing structure includes a first fixing part and a second fixing part. The first fixing part includes a first housing (13) inside the fixing base plate (10). Four sets of second snap-fit ​​plates (37) are fixedly installed on the inner wall of the first housing (13). The second snap-fit ​​plates (37) have second snap-fit ​​rod grooves (38) inside. A filter element housing (16) is provided inside the first housing (13). Four sets of first limiting grooves (21) are provided on the outer wall of the filter element housing (16). A first snap-fit ​​plate (19) is fixedly installed inside the first limiting groove (21). A first snap-fit ​​rod (20) is fixedly installed at the bottom of the first snap-fit ​​plate (19). The snap-fit ​​is installed inside the second snap-fit ​​rod groove (38), and the bottom of the first snap-fit ​​plate (19) is in close contact with the top of the second snap-fit ​​plate (37); the second fixing part includes a first connecting plate (14) fixedly installed on the outer wall of the first housing (13), the first connecting plate (14) has a second threaded groove (15) inside, the top of the fixing base plate (10) is provided with a second housing (24), the outer wall of the second housing (24) is fixedly installed with a second connecting plate (22), the bottom of the second connecting plate (22) has a third threaded groove (23), and the second limiting bolt (40) is spirally installed inside the second threaded groove (15) and the third threaded groove (23).

2. The directional drilling machine's return oil filter of claim 1, wherein, The second fixing part also includes a fourth threaded groove (25) opened on the inner wall of the second housing (24). A sealing cover plate (32) is provided on the top of the second housing (24). A threaded sleeve (34) is fixedly installed on the bottom of the sealing cover plate (32). A damping spring rod (35) is fixedly installed on the bottom of the sealing cover plate (32). A pressure block (36) is fixedly installed on the bottom of the damping spring rod (35). The threaded sleeve (34) is spirally installed inside the fourth threaded groove (25). A filter element (18) is provided inside the filter element housing (16). The bottom of the pressure block (36) is in close contact with the top of the filter element (18).

3. The directional drilling machine's return oil filter of claim 1, wherein, A first limiting frame plate (11) is fixedly installed on the outer wall of the fixed base plate (10). The first limiting frame plate (11) has sixteen sets of first threaded grooves (12) inside. A third limiting bolt (41) is spirally installed inside the first threaded grooves (12). An oil tank (42) is provided on the outside of the fixed base plate (10). A second limiting frame plate (43) is fixedly installed on the top of the oil tank (42). The second limiting frame plate (43) has sixteen sets of first threaded grooves (12) inside. The third limiting bolt (41) is spirally installed inside the first threaded grooves (12).

4. The directional drilling machine's return oil filter of claim 1, wherein, The second housing (24) has an opening on its outer wall, and a first oil pipe (26) is fixedly installed in the opening. A third connecting plate (27) is fixedly installed on the outer wall of the first oil pipe (26). The third connecting plate (27) has four sets of fifth threaded grooves (28) inside, and a first limiting bolt (39) is spirally installed inside the fifth threaded grooves (28).

5. The directional drilling machine's return oil filter of claim 1, wherein, The fixed base plate (10) is provided with a fourth connecting plate (29) on the outside. The fourth connecting plate (29) has four sets of sixth thread grooves (30) inside. The first limiting bolt (39) is screwed into the inside of the sixth thread groove (30). The second oil pipe (31) is fixedly installed inside the fourth connecting plate (29).

6. The directional drilling machine's return oil filter of claim 1, wherein, The top of the filter housing (16) has four sets of grooves, and a pull strap (17) is fixedly installed in the grooves.

7. The directional driller's return filter of claim 2 wherein, Two sets of handles (33) are fixedly installed on the top of the sealing cover (32).

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