Removable slurry pump liner assembly

Abstract

The application relates to the technical field of mud pumps, and discloses a detachable mud pump cylinder sleeve assembly which comprises an outer cylinder sleeve and an inner cylinder sleeve embeddedly arranged on the inner side of the outer cylinder sleeve, an installation cover is arranged at the upper end of the outer side of the outer cylinder sleeve, and an end cover is arranged at the bottom of the outer side of the outer cylinder sleeve; the inner cylinder sleeve comprises an inner cylinder sleeve body, a sealing ring one is sleeved on the outer side of an outer ring step four, and a sealing ring two is embeddedly arranged on the inner side of a sealing groove two. The outer cylinder sleeve, the inner cylinder sleeve, the end cover and the installation cover can be detached, so that the whole cylinder sleeve assembly can be conveniently detached from the pump cylinder of the mud pump, or the easily-damaged inner cylinder sleeve can be individually detached and replaced, thereby effectively reducing the use cost; the outer cylinder sleeve and the inner cylinder sleeve are fixed together through the end cover, and the joint of the outer cylinder sleeve and the inner cylinder sleeve is sealed through the sealing ring one and the sealing ring two, so that the sealing effect can be effectively improved, and the service life is prolonged.

Description

Technical Field

[0001] This application relates to the field of mud pump technology, specifically to a detachable mud pump cylinder liner assembly. Background Technology

[0002] Mud pumps are mainly used to transport mud or similar fluids and are widely used in mines, construction sites, and various factories. Common mud pumps are piston or plunger type, driven by a power unit that rotates the pump's crankshaft. The crankshaft then drives the piston or plunger to reciprocate within the pump cylinder via a crosshead. With the alternating action of the suction and discharge valves, the pump achieves the purpose of pressurizing and circulating flushing fluid. The cylinder liner inside the pump cylinder is an important and easily worn component of the hydraulic end of the mud pump, so the lifespan of the mud pump cylinder liner directly affects the lifespan of the mud pump.

[0003] Chinese patent discloses a quick-change mud pump cylinder liner assembly (authorization announcement number CN217976568U). This patented technology uses an added gear shaft to achieve quick disassembly of the mud pump cylinder liner through gear meshing, solving the technical problems of labor-intensive, time-consuming, and labor-intensive disassembly and assembly of mud pump cylinder liner assemblies. It has a compact structure, is efficient and convenient to disassemble and assemble, saves labor and effort, and is suitable for promotion. However, its structure is complex, its sealing performance is poor, and it cannot effectively improve its service life. Utility Model Content

[0004] The purpose of this invention is to provide a detachable mud pump cylinder liner assembly to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A detachable mud pump cylinder liner assembly includes an outer cylinder liner and an inner cylinder liner embedded inside the outer cylinder liner. The upper end of the outer side of the outer cylinder liner is equipped with an installation cap, and the bottom of the outer side of the outer cylinder liner is equipped with an end cap. The inner cylinder liner includes an inner cylinder liner body. The lower end of the inner cylinder liner body is fixedly connected to an outer ring step three, and the upper end of the inner cylinder liner body is fixedly connected to an outer ring step four. A sealing ring one is sleeved on the outer side of the outer ring step four, and a sealing groove two is opened on the upper end of the outer ring step three near the outer side of the inner cylinder liner body. A sealing ring two is embedded in the inner side of the sealing groove two.

[0006] As a further embodiment of this utility model: the outer cylinder liner includes an outer cylinder liner body, the lower end of the outer cylinder liner body is fixedly connected to an outer ring step two, and the upper end of the outer cylinder liner body is fixedly connected to an outer inner ring one, the upper end of the inner side of the outer inner ring one is provided with an inner ring step one, and the lower end of the inner ring step one is provided with a sealing groove one near the inner side of the outer inner ring one.

[0007] As a further embodiment of this utility model: the inner cylinder liner body passes through the inner side of the outer ring step two, the outer cylinder liner body and the inner outer ring one in sequence from bottom to top; the outer ring step four passes through the inner side of the inner ring step one; the upper end of the sealing ring one is embedded in the inner side of the sealing groove one; and the upper end of the sealing ring two is in contact with the lower end of the outer ring step two.

[0008] As a further embodiment of this utility model: the mounting cover includes a mounting cover body, a flange is fixedly connected to the lower end of the outer side of the mounting cover body, a plurality of long screws are provided through the inner side of the flange located on the outer side of the mounting cover body, and a support sleeve is sleeved on the outer side of the long screws near the upper end of the flange.

[0009] As a further embodiment of this utility model: the inner side of the mounting cover body is provided with an internal thread groove, the outer side of the outer inner ring is provided with a corresponding external thread groove, and the mounting cover body and the outer inner ring are fixedly connected by threads.

[0010] As a further embodiment of this utility model: the end cap includes an end cap body, the lower inner side of the end cap body is provided with an inner ring step two, and a snap is provided on the outer side of the end cap body.

[0011] As a further embodiment of this utility model: an internal thread groove is provided on the upper inner side of the end cap body, and a corresponding external thread groove is provided on the outer side of the outer ring step two. The end cap body and the outer ring step two are connected by thread engagement, and the outer ring step three is located at the upper end of the inner ring step two.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model allows for easy removal of the entire cylinder liner assembly from the pump cylinder of the mud pump by making the outer cylinder liner, inner cylinder liner, end cap, and mounting cap all detachable, or by individually removing and replacing the easily damaged inner cylinder liner, thereby effectively reducing operating costs. The end cap secures the outer and inner cylinder liners together, and the junction between the outer and inner cylinder liners is sealed by sealing rings one and two, effectively improving the sealing effect and extending service life. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a detachable mud pump cylinder liner assembly. Figure 2 This is an exploded view of the detachable mud pump cylinder liner assembly. Figure 3 This is a partial cross-sectional view of the outer cylinder liner in a detachable mud pump cylinder liner assembly. Figure 4 This is a schematic diagram of the inner cylinder liner in a detachable mud pump cylinder liner assembly. Figure 5 This is a schematic diagram of the structure of the end cap of the detachable mud pump cylinder liner assembly; Figure 6 This is a schematic diagram of the mounting cover in a detachable mud pump cylinder liner assembly.

[0014] In the diagram: 1. Outer cylinder liner; 11. Outer cylinder liner body; 12. Sealing groove one; 13. Outer inner ring one; 14. Inner ring step one; 15. Outer ring step two; 2. Inner cylinder liner; 21. Inner cylinder liner body; 22. Sealing ring two; 23. Outer ring step three; 24. Sealing groove two; 25. Sealing ring one; 26. Outer ring step four; 3. End cap; 31. End cap body; 32. Bayonet; 33. Inner ring step two; 4. Mounting cover; 41. Mounting cover body; 42. Flange; 43. Long threaded rod; 44. Support sleeve. Detailed Implementation

[0015] Please see Figures 1-6 In this embodiment of the utility model, the detachable mud pump cylinder liner assembly includes an outer cylinder liner 1 and an inner cylinder liner 2 embedded and installed inside the outer cylinder liner 1. An installation cover 4 is installed on the upper end of the outer side of the outer cylinder liner 1, and an end cover 3 is installed on the bottom of the outer side of the outer cylinder liner 1. The outer cylinder liner 1, the inner cylinder liner 2, the end cover 3 and the installation cover 4 are all detachable, thereby facilitating the removal of the entire cylinder liner assembly from the pump cylinder of the mud pump, or the easily damaged inner cylinder liner 2 can be removed and replaced separately, thereby effectively reducing the cost of use.

[0016] exist Figure 3 In the middle, the outer cylinder liner 1 includes an outer cylinder liner body 11. The lower end of the outer cylinder liner body 11 is fixedly connected to an outer ring step 15, and the upper end of the outer cylinder liner body 11 is fixedly connected to an outer inner ring 13. The upper end of the inner side of the outer inner ring 13 is provided with an inner ring step 14, and the lower end of the inner ring step 14 is provided with a sealing groove 12 near the inner side of the outer inner ring 13.

[0017] exist Figure 4 In the middle, the inner cylinder liner 2 includes an inner cylinder liner body 21. The lower end of the inner cylinder liner body 21 is fixedly connected to an outer ring step three 23, and the upper end of the inner cylinder liner body 21 is fixedly connected to an outer ring step four 26. A sealing ring one 25 is sleeved on the outer side of the outer ring step four 26, and a sealing groove two 24 is opened on the upper end of the outer ring step three 23 near the outer side of the inner cylinder liner body 21. A sealing ring two 22 is embedded in the inner side of the sealing groove two 24.

[0018] exist Figure 3 and Figure 4In the middle, the inner cylinder liner body 21 passes through the inner side of the outer ring step 2 15, the outer cylinder liner body 11 and the inner ring 13 from bottom to top. The outer ring step 4 26 passes through the inner side of the inner ring step 14. The upper end of the sealing ring 1 25 is embedded in the inner side of the sealing groove 12. The upper end of the sealing ring 2 22 is in contact with the lower end of the outer ring step 2 15, so as to ensure that the junction of the outer ring step 4 26 and the inner ring step 14, as well as the junction of the inner cylinder liner body 21 and the outer ring step 2 15, remains sealed.

[0019] exist Figure 3 , Figure 4 and Figure 5 In the process, the end cap 3 includes an end cap body 31. The lower inner end of the end cap body 31 is provided with an inner ring step 2 33, and a snap 32 is provided on the outer side of the end cap body 31. The upper inner end of the end cap body 31 is provided with an internal thread groove, and the outer side of the outer ring step 2 15 is provided with a corresponding external thread groove. The end cap body 31 and the outer ring step 2 15 are connected by thread engagement. By using an external tool to snap onto the snap 32, the end cap 3 can be installed on the outer cylinder liner 1 or removed. The outer ring step 3 23 is located at the upper end of the inner ring step 2 33. When the end cap 3 and the outer cylinder liner 1 are installed together, the inner ring step 2 33 presses against the lower part of the outer ring step 3 23, thereby making the inner cylinder liner 2 securely fixed inside the outer cylinder liner 1 and easy to disassemble.

[0020] exist Figure 2 and Figure 6 In the process, the mounting cover 4 includes a mounting cover body 41. A flange 42 is fixedly connected to the lower outer side of the mounting cover body 41. Several long screws 43 are provided through the inner side of the flange 42 on the outer side of the mounting cover body 41. A support sleeve 44 is sleeved on the outer side of the long screws 43 near the upper end of the flange 42. An internal thread groove is opened on the inner side of the mounting cover body 41, and a corresponding external thread groove is opened on the outer side of the outer inner ring 13. The mounting cover body 41 and the outer inner ring 13 are fixedly connected by threads. The mounting cover 4 can be installed on the outer cylinder liner 1 or removed by using an external tool to clamp it onto the mounting cover body 41. When the outer cylinder liner 1 is inserted into the pump cylinder of the mud pump, the cylinder liner assembly can be kept fixed by tightening the long screws 43 onto the pump cylinder.

[0021] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A detachable mud pump cylinder liner assembly, comprising an outer cylinder liner (1) and an inner cylinder liner (2) embedded and installed inside the outer cylinder liner (1), characterized in that, An installation cover (4) is installed on the upper end of the outer side of the outer cylinder liner (1), and an end cap (3) is installed on the bottom of the outer side of the outer cylinder liner (1). The inner cylinder liner (2) includes an inner cylinder liner body (21). An outer ring step three (23) is fixedly connected to the lower end of the inner cylinder liner body (21), and an outer ring step four (26) is fixedly connected to the upper end of the inner cylinder liner body (21). A sealing ring one (25) is sleeved on the outer side of the outer ring step four (26), and a sealing groove two (24) is opened on the upper end of the outer ring step three (23) near the outer side of the inner cylinder liner body (21). A sealing ring two (22) is embedded in the inner side of the sealing groove two (24).

2. The detachable mud pump cylinder liner assembly according to claim 1, characterized in that, The outer cylinder liner (1) includes an outer cylinder liner body (11). The lower end of the outer cylinder liner body (11) is fixedly connected to an outer ring step two (15), and an outer inner ring one (13) is fixedly connected to the upper end of the outer cylinder liner body (11). An inner ring step one (14) is provided on the upper end of the inner side of the outer inner ring one (13), and a sealing groove one (12) is opened on the lower end of the inner ring step one (14) near the inner side of the outer inner ring one (13).

3. The detachable mud pump cylinder liner assembly according to claim 2, characterized in that, The inner cylinder liner body (21) passes through the inner side of the outer ring step two (15), the outer cylinder liner body (11) and the inner ring one (13) from bottom to top. The outer ring step four (26) passes through the inner side of the inner ring step one (14). The upper end of the sealing ring one (25) is embedded in the inner side of the sealing groove one (12). The upper end of the sealing ring two (22) is in contact with the lower end of the outer ring step two (15).

4. The detachable mud pump cylinder liner assembly according to claim 2, characterized in that, The mounting cover (4) includes a mounting cover body (41). A flange (42) is fixedly connected to the lower end of the outer side of the mounting cover body (41). Several long screws (43) are provided through the inner side of the flange (42) on the outer side of the mounting cover body (41). A support sleeve (44) is sleeved on the outer side of the long screws (43) near the upper end of the flange (42).

5. The detachable mud pump cylinder liner assembly according to claim 4, characterized in that, The inner side of the mounting cover body (41) is provided with an internal thread groove, and the outer side of the outer inner ring (13) is provided with a corresponding external thread groove. The mounting cover body (41) and the outer inner ring (13) are fixedly connected by threads.

6. The detachable mud pump cylinder liner assembly according to claim 3, characterized in that, The end cap (3) includes an end cap body (31), with an inner ring step (33) provided at the lower end of the inner side of the end cap body (31), and a snap (32) provided on the outer side of the end cap body (31).

7. The detachable mud pump cylinder liner assembly according to claim 6, characterized in that, The upper inner side of the end cap body (31) is provided with an internal thread groove, and the outer side of the second outer ring step (15) is provided with a corresponding external thread groove. The end cap body (31) and the second outer ring step (15) are connected by thread engagement, and the third outer ring step (23) is located at the upper end of the second inner ring step (33).

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