Special-shaped sealing ring and five-cylinder pump

Abstract

The utility model relates to the technical field of reciprocating pumps, and provides a special-shaped sealing ring and a five-cylinder pump, the bottom of the sealing ring is provided with an annular opening, an isolation part and an inclined abutting surface, the annular opening abuts against the wall surface of a pump head to form a closed space, and the inclined abutting surface abuts against the wall surface of a valve cover. By means of the technical scheme, the problem that in the prior art, the sealing effect of a five-cylinder pump is not good enough is solved.

Description

Technical Field

[0001] This utility model relates to the field of reciprocating pump technology, specifically to an irregularly shaped sealing ring and a five-cylinder pump. Background Technology

[0002] Pumps play a crucial role in drilling operations. To overcome the limitations of traditional three-cylinder pumps and meet the ever-increasing demands of drilling and grouting operations, five-cylinder pumps have emerged. With their stable pressure output, large and uniform flow rate, high power utilization, and reliable performance, five-cylinder pumps have become an important choice for pump equipment, providing strong support for efficient and safe drilling and grouting operations.

[0003] However, the existing five-cylinder pump still has the following problems:

[0004] 1. The valve cover does not seal well enough;

[0005] 2. The lack of a splash lubrication oil collection device results in poor splash lubrication effect.

[0006] Therefore, the existing five-cylinder pump needs to be improved to solve the above problems. Utility Model Content

[0007] This invention proposes an irregularly shaped sealing ring and a five-cylinder pump, which solves the problem of insufficient sealing effect of five-cylinder pumps in related technologies.

[0008] The technical solution of this utility model is as follows:

[0009] An irregularly shaped sealing ring, wherein the bottom of the sealing ring has an annular opening and an isolation portion.

[0010] As a further technical solution, the sealing ring also has an inclined contact surface.

[0011] A five-cylinder pump, including the aforementioned irregularly shaped sealing ring, also includes,

[0012] case;

[0013] The pump head is mounted on the housing;

[0014] A valve cover is disposed on the pump head, a sealing groove is formed between the pump head and the valve cover, a sealing ring is disposed in the sealing groove, the annular opening abuts against the wall surface of the pump head to form a sealed space, and the inclined abutting surface abuts against the wall surface of the valve cover.

[0015] As a further technical solution, it also includes,

[0016] The crankshaft is rotatably mounted within the housing;

[0017] A transmission gear is mounted on the crankshaft;

[0018] An oil collecting component is disposed inside the housing and located above the transmission gear. The oil collecting component has an oil collecting groove located on one side of the transmission gear.

[0019] An oil scraper is inclinedly mounted on the oil collecting component, with one end abutting against the side wall of the transmission gear and the other end extending into the oil collecting groove.

[0020] As a further technical solution, the oil scraper includes,

[0021] A guide plate is inclinedly disposed on the oil collecting component, with one end extending into the oil collecting groove; the guide plate has an avoidance opening.

[0022] An oil scraper is disposed on the guide plate, located on one side of the clearance opening, with one end of the oil scraper abutting against the side wall of the transmission gear.

[0023] As a further technical solution, it also includes,

[0024] A connecting rod, one end of which is movably connected to the crankshaft crank.

[0025] A crosshead is movably disposed within the housing, and the other end of the connecting rod is movably connected to the crosshead. The crosshead has a ball head mounting position.

[0026] The middle tie rod has a ball head, which is connected to the ball head mounting position in a ball-joint pair.

[0027] As a further technical solution, it also includes,

[0028] A short rod is mounted on the intermediate tie rod;

[0029] The piston rod is mounted on the short rod.

[0030] As a further technical solution, the pump head has a cylinder liner and also includes,

[0031] A piston is mounted on the piston rod and is located inside the cylinder liner, abutting against the inner wall of the cylinder liner.

[0032] As a further technical solution, there are two oil collection grooves, symmetrically distributed on both sides of the transmission gear.

[0033] As a further technical solution, the oil scraper has several parts.

[0034] The working principle and beneficial effects of this utility model are as follows:

[0035] In this invention, when the irregularly shaped sealing ring is placed in the sealing groove, the annular opening at the bottom contacts the wall of the sealing groove to form a sealed space. At the same time, the isolation part also abuts against the wall of the sealing groove. Thus, the external liquid will first squeeze the isolation part, which acts as the first layer of seal. As the external pressure gradually increases, the pressure difference between the annular opening and the outside also gradually increases. When the isolation part can no longer withstand the external pressure, the liquid will leak into the annular opening. Because the liquid gradually leaks into the annular opening, the pressure difference between the annular opening and the outside will gradually decrease. When the pressure difference drops to a sufficiently small value, there will be no more leakage. At this point, the second layer of seal is formed, which greatly improves the sealing effect of the sealing ring.

[0036] The five-cylinder pump using this special-shaped sealing ring effectively improves the sealing effect of the valve cover and enhances its overall practicality. Attached Figure Description

[0037] The preferred embodiments will be described below in a clear and easy-to-understand manner, in conjunction with the accompanying drawings, to further explain the above-mentioned characteristics, technical features, advantages and implementation methods of this utility model.

[0038] Figure 1 This is a schematic diagram of the sealing ring structure in this utility model;

[0039] Figure 2 This is a side sectional view of the five-cylinder pump in this utility model.

[0040] Figure 3 for Figure 2 A magnified schematic diagram of section A in the middle;

[0041] Figure 4 for Figure 2 A magnified schematic diagram of the local B section;

[0042] Figure 5 This is a schematic diagram of the oil collection component structure of this utility model;

[0043] Figure 6 This is a top sectional view of the five-cylinder pump in this utility model.

[0044] In the diagram: 1. Sealing ring, 2. Annular opening, 3. Isolation part, 4. Inclined contact surface, 5. Housing, 6. Pump head, 7. Valve cover, 8. Sealing groove, 9. Crankshaft, 10. Transmission gear, 11. Oil collection component, 12. Oil collection groove, 13. Oil scraper, 14. Guide plate, 15. Clearance opening, 16. Oil scraper, 17. Connecting rod, 18. Crosshead, 19. Ball head mounting position, 20. Intermediate tie rod, 21. Ball head, 22. Short rod, 23. Piston rod, 24. Cylinder liner, 25. Piston. Detailed Implementation

[0045] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0046] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0047] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0048] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0049] like Figures 1-6 As shown, the bottom of the sealing ring 1 has an annular opening 2 and an isolation portion 3.

[0050] In this embodiment, to address the problem of insufficient sealing effect of five-cylinder pumps in related technologies, a special-shaped sealing ring is designed. When this special-shaped sealing ring is placed in the sealing groove 8, the annular opening 2 at the bottom contacts the wall of the sealing groove 8 to form a sealed space. At the same time, the isolation part 3 also abuts against the wall of the sealing groove 8. Thus, the external liquid will first squeeze the isolation part 3, which acts as the first layer of seal. As the external pressure gradually increases, the pressure difference between the annular opening 2 and the outside also gradually increases. When the isolation part 3 can no longer withstand the external pressure, the liquid will leak into the annular opening 2. Because the liquid gradually leaks into the annular opening 2, the pressure difference between the annular opening 2 and the outside will gradually decrease. When the pressure difference drops to a sufficiently small value, there will be no more leakage. At this point, the second layer of seal is formed, which greatly improves the sealing effect of the sealing ring 1.

[0051] Furthermore, the sealing ring 1 also has an inclined contact surface 4.

[0052] In this embodiment, the inclined contact surface 4 also forms a self-sealing seal, such as... Figure 1 and Figure 3 As shown, when the external pressure gradually increases, the sealing ring 1 will move upward. Due to the presence of the inclined contact surface 4, the sealing ring 1 will only become tighter and tighter, and can fit tightly against the wall of the valve cover 7, further improving the sealing effect.

[0053] A five-cylinder pump is also proposed, including a sealing ring 1 and a housing 5; a pump head 6 is disposed on the housing 5; a valve cover 7 is disposed on the pump head 6, a sealing groove 8 is formed between the pump head 6 and the valve cover 7, the sealing ring 1 is disposed in the sealing groove 8, an annular opening 2 abuts against the wall of the pump head 6 to form a sealed space, and an inclined abutting surface 4 abuts against the wall of the valve cover 7.

[0054] In this embodiment, the sealing ring is made of high-performance rubber material. Its annular opening 2 at the bottom has a specific shape and size, ensuring a tight fit against the pump head 6 wall during installation, forming a sealed space and effectively preventing liquid leakage while creating a secondary seal. Simultaneously, the sealing ring also has an inclined abutment surface 4, which is precisely designed and machined to fit tightly against the valve cover 7 wall, further improving the sealing effect.

[0055] Furthermore, it also includes a crankshaft 9, which is rotatably disposed within the housing 5; both the drive shaft and the crankshaft 9 are provided with transmission gears 10; an oil collector 11 is disposed inside the housing 5, located above the transmission gears 10, and the oil collector 11 has an oil collection groove 12, which is located on one side of the transmission gears 10; an oil scraper 13 is obliquely disposed on the oil collector 11, with one end abutting against the side wall of the transmission gears 10 and the other end extending into the oil collection groove 12.

[0056] Furthermore, the oil scraper 13 includes a guide plate 14, which is inclinedly disposed on the oil collecting member 11, with one end extending into the oil collecting groove 12. The guide plate 14 has a clearance opening 15. The oil scraper 16 is disposed on the guide plate 14, located on one side of the clearance opening 15, with one end of the oil scraper 16 abutting against the side wall of the transmission gear 10.

[0057] In this embodiment, an oil collecting component 11 is installed above the transmission gear 10. When the transmission gear 10 is in motion, the oil on its end face is scraped off by the oil scraper 13 and guided into the oil collecting groove 12 to complete the oil collection.

[0058] Specifically, the end of the oil scraper 16 that contacts the end face of the transmission gear 10 is made of rubber to avoid scratching the transmission gear 10. The oil will transfer along the oil scraper 16 to the guide plate 14. There is a relief opening 15 in the center of the guide plate 14. The oil will fall from the relief opening 15 into the oil collection tank 12.

[0059] Furthermore, it also includes a connecting rod 17, one end of which is movably connected to the crankshaft 9; a crosshead 18 is movably disposed within the housing 5, and the other end of the connecting rod 17 is movably connected to the crosshead 18.

[0060] In this embodiment, there are several connecting rods 17. One end of each connecting rod 17 is movably connected to a crank section of the crankshaft 9, and the other end is movably connected to the crosshead 18. The connecting rods 17 are made of high-quality alloy steel and have good strength and toughness. This part is prior art and will not be described in detail.

[0061] Furthermore, the crosshead 18 has a ball head mounting position 19, and the intermediate tie rod 20 has a ball head 21, which is connected to the ball head mounting position 19 in a ball joint configuration.

[0062] Furthermore, the short rod 22 is mounted on the intermediate pull rod 20; the piston rod 23 is mounted on the short rod 22.

[0063] Furthermore, the pump head 6 has a cylinder liner 24 and also includes a piston 25, which is disposed on the piston rod 23 and is located inside the cylinder liner 24, abutting against the inner wall of the cylinder liner 24.

[0064] Furthermore, there are two oil collection grooves 12, which are symmetrically distributed on both sides of the transmission gear 10.

[0065] Furthermore, there are several oil scraper components 13.

[0066] In this embodiment, the crosshead 18 is movably disposed within the housing 5 and has a ball joint mounting position 19. By setting the connecting rod 17 and the crosshead 18 to a ball joint connection, the intermediate tie rod 2 and the crosshead 18 can deflect and adjust in three degrees of freedom, improving the self-aligning performance, effectively reducing cylinder liner piston wear, and extending cylinder liner piston life.

[0067] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A non-circular sealing ring, characterized in that, The bottom of the sealing ring (1) has an annular opening (2) and an isolation part (3); the isolation part (3) serves as the first layer of seal. As the external pressure gradually increases, the pressure difference between the annular opening (2) and the outside also gradually increases. When the isolation part (3) cannot withstand the external pressure, liquid will leak into the annular opening (2), and the pressure difference between the annular opening (2) and the outside will gradually decrease, forming a second layer of seal.

2. The irregularly shaped sealing ring according to claim 1, characterized in that, The sealing ring (1) also has an inclined contact surface (4).

3. A five-cylinder pump, comprising the irregularly shaped sealing ring as described in claim 2, characterized in that, It also includes, Casing (5); Pump head (6) is disposed on the housing (5); A valve cover (7) is provided on the pump head (6), and a sealing groove (8) is formed between the pump head (6) and the valve cover (7). The sealing ring (1) is provided in the sealing groove (8), and the annular opening (2) abuts against the wall of the pump head (6) to form a sealed space. The inclined abutting surface (4) abuts against the wall of the valve cover (7).

4. A five-cylinder pump according to claim 3, characterized in that, It also includes, The crankshaft (9) is rotatably disposed within the housing (5); A transmission gear (10) is mounted on the crankshaft (9); An oil collecting component (11) is disposed inside the housing (5) and located on the upper part of the transmission gear (10). The oil collecting component (11) has an oil collecting groove (12) located on one side of the transmission gear (10). The oil scraper (13) is inclinedly disposed on the oil collecting member (11), with one end abutting against the side wall of the transmission gear (10) and the other end extending into the oil collecting groove (12).

5. A five-cylinder pump according to claim 4, characterized in that, The oil scraper (13) includes, The guide plate (14) is inclinedly disposed on the oil collecting component (11), with one end extending into the oil collecting groove (12). The guide plate (14) has a clearance opening (15). The oil scraper (16) is disposed on the guide plate (14) and located on one side of the clearance opening (15). One end of the oil scraper (16) abuts against the side wall of the transmission gear (10).

6. A five-cylinder pump according to claim 4, characterized in that, It also includes, Connecting rod (17), one end of which is movably connected to the crankshaft (9); The crosshead (18) is movably disposed within the housing (5), and the other end of the connecting rod (17) is movably connected to the crosshead (18). The crosshead (18) has a ball head mounting position (19). The intermediate tie rod (20) has a ball head (21), which is connected to the ball head mounting position (19) in a ball-joint pair.

7. A five-cylinder pump according to claim 6, characterized in that, It also includes, A short rod (22) is mounted on the intermediate tie rod (20); The piston rod (23) is mounted on the short rod (22).

8. A five-cylinder pump according to claim 7, characterized in that, The pump head (6) has a cylinder liner (24) and also includes, A piston (25) is disposed on the piston rod (23). The piston (25) is located inside the cylinder liner (24) and abuts against the inner wall of the cylinder liner (24).

9. A five-cylinder pump according to claim 4, characterized in that, There are two oil collection grooves (12), which are symmetrically distributed on both sides of the transmission gear (10).

10. A five-cylinder pump according to claim 4, characterized in that, There are several oil scraper components (13).

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