Axial plunger pump capable of adjusting flow

Abstract

The utility model relates to an axial plunger pump capable of adjusting flow, which belongs to the technical field of plunger pumps, and comprises a pump body, an adjusting part arranged on the side surface of the pump body, a connecting part arranged in the adjusting part, a shaft body part movably connected in the pump body, and a limiting part arranged on the outer side of the shaft body part, the adjusting component comprises a tail cover plate in threaded connection to the side face of the pump body, a movable bolt movably connected to the side face of the tail cover plate, and a connecting base movably connected into the movable bolt. According to the axial plunger pump capable of adjusting the flow, the pump body is connected into driving equipment to drive the driving shaft to rotate, the driving shaft drives the driving disc to rotate so that the pushing rod can rotate along with the driving disc, the bevel disc pushes the rotating pushing rod to move, and then the bevel disc is matched with entering oil to push the pushing rod to move; and the pushing rod continuously reciprocates back and forth through continuous interaction of the oil inlet and the oil outlet, so that oil entering from the oil inlet is pressurized and then discharged through the oil outlet, and the purpose of pressurization is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of pump bodies, in particular to an axial piston pump with adjustable flow rate. Background Art

[0002] An axial piston pump is a type of plunger pump whose piston or plunger moves back and forth in a direction parallel to the center axis of the cylinder. It works by utilizing the volume change caused by the reciprocating motion of the plunger parallel to the drive shaft in the plunger hole. It mainly includes three processes: oil suction, oil pressure, and oil discharge. During the oil suction process, the inlet valve at the pump inlet opens, and the liquid enters the pump body through the inlet valve. At this time, the plunger is at the bottom of the cylinder. During the oil pressure process, the inlet valve is closed, the outlet valve is opened, and the liquid is squeezed to the top of the cylinder, and the pressure increases accordingly. Finally, during the oil discharge process, the liquid flows out of the outlet valve, and the inlet valve is closed at the same time, completing a cycle.

[0003] Axial piston pumps have the characteristics of high reliability, high efficiency, high pressure, low noise, etc., so they are widely used in many fields. However, this type of pump body is usually set as a multi-stage structure. When adjusting the flow inside the pump body, it is usually controlled by an additional energized coil inside to adjust the inlet and outlet flow. Although this method is simple to operate, it has too many internal structures due to the additional electromagnetic circuit, which makes the overall structure more difficult to coordinate and increases the difficulty of subsequent maintenance. Therefore, an axial piston pump with adjustable flow is proposed, in which a traditional mechanical structure device is added inside the pump body to achieve the purpose of adjusting the flow in the pump by rotation adjustment. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides an axial piston pump with adjustable flow rate, which has the advantages of high flexibility and good stability, and solves the problem that the traditional axial piston pump has a relatively complex structure for controlling the internal oil inlet and outlet functions, which makes it inconvenient to disassemble and maintain later.

[0005] In order to achieve the above-mentioned purposes of high flexibility and good stability, the utility model provides the following technical solutions: an axial piston pump with adjustable flow, comprising a pump body, an adjusting component arranged on the side of the pump body, a connecting component arranged inside the adjusting component, an axial body component movably connected to the inside of the pump body, and a limiting component arranged on the outside of the axial body component; the adjusting component comprises a tail cover plate threadedly connected to the side of the pump body, a movable pin movably connected to the side of the tail cover plate, a connecting seat movably connected to the inside of the movable pin, a positioning seat fixedly mounted on the side of the connecting seat, and a flow limiting plate movably connected to the outside of the positioning seat.

[0006] Furthermore, a limiting groove is provided on the side of the tail cover plate, and a plurality of positioning notches are provided on the inner side wall of the limiting groove. A movable latch passes through the limiting groove transversely and is slidably connected with the tail cover plate. A positioning plug plate is provided on the side of the movable latch and is embedded in the positioning notch. An oil outlet and an oil inlet are provided on the surface of the tail cover plate, and a plurality of evenly distributed oil holes are provided inside the limiting plate.

[0007] Furthermore, a hollow groove is provided on the side of the movable pin, a positioning spring is fixedly installed on the inner wall of the hollow groove, one end of the connecting seat is embedded in the interior of the hollow groove and fixedly installed with the positioning spring, and a limiting slide groove that cooperates with each other is provided on the inner surface of the hollow groove and the side surface of the connecting seat, and a limiting slide rod that is slidably connected is provided inside the limiting slide groove.

[0008] Furthermore, the connecting component includes a guide plate movably connected to the side of the positioning seat, a plurality of guide holes opened inside the guide plate, and a guide ring fixedly installed inside the guide holes.

[0009] Furthermore, a through hole is provided inside the guide plate, the positioning seat passes through the through hole horizontally and the guide plate is fixedly installed by a movable buckle, a plurality of evenly distributed oil holes are provided inside the guide plate, and the side of the guide plate and the inner wall of the pump body are fixedly installed.

[0010] Furthermore, the shaft body component includes a driving disk rotatably connected to the inside of the pump body, a driving shaft fixedly installed inside the driving disk, and a plurality of pushing rods movably connected to the inside of the driving disk.

[0011] Furthermore, a plurality of through holes are provided inside the driving disk, and the push rod passes through the driving disk transversely and is slidably connected to the driving disk.

[0012] Furthermore, the limiting component includes a sealing plate threadedly connected to the pump body head and a beveled disc fixedly mounted on the side of the sealing plate.

[0013] Furthermore, the driving shaft transversely penetrates the bevel disc and the sealing plate and is rotationally connected with the bevel disc and the sealing plate.

[0014] Compared with the prior art, the utility model provides an axial piston pump with adjustable flow rate, which has the following beneficial effects:

[0015] 1. The axial piston pump with adjustable flow rate connects the pump body to the driving device to drive the rotation of the driving shaft, and the driving shaft drives the driving disk to rotate, so that the push rod rotates with the driving disk, and the inclined disk drives the rotating push rod to move, and then cooperates with the incoming oil to drive the push rod to move. The continuous interaction between the two on the push rod enables the push rod to continuously move back and forth, thereby pressurizing the oil entering the oil inlet and then discharging it through the oil outlet, thereby achieving the purpose of pressurization.

[0016] 2. The flow-adjustable axial piston pump draws out the positioning plug plate from the inside of the positioning slot and then rotates the movable plug pin. Since the limit slide bar simultaneously limits the position of the movable plug pin and the connecting seat, the rotation of the movable plug pin drives the rotation of the positioning seat, and the rotation of the positioning seat drives the rotation of the flow limiting plate. The rotation of the flow limiting plate causes the relative positions of the flow limiting plate and the guide plate to be misaligned, thereby reducing the flow apertures of the two, thereby reducing the amount of oil passing therethrough, thereby achieving the purpose of controlling the flow rate, and solving the problem that the traditional axial piston pump has a relatively complex structure for controlling the internal oil inlet and outlet functions, which leads to inconvenience in later disassembly and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a cross-sectional view of the structure of the utility model;

[0018] Figure 2 The utility model structure Figure 1 A magnified view of the structure in the middle;

[0019] Figure 3 This is a stereoscopic diagram of the drive disc and drive shaft of the utility model structure.

[0020] In the figure: 1. pump body; 2. adjusting component; 21. tail cover plate; 22. movable latch; 221. hollow groove; 222. positioning spring; 223. limiting slide groove; 224. limiting slide rod; 23. connecting seat; 24. positioning seat; 25. flow limiting plate; 26. limiting groove; 27. positioning notch; 28. positioning plug plate; 3. connecting component; 31. guide plate; 32. guide hole; 33. guide ring; 4. shaft body component; 41. drive disk; 42. drive shaft; 43. push rod; 5. limiting component; 51. sealing plate; 52. inclined disc. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-3In this embodiment, an axial piston pump with adjustable flow rate includes a pump body 1, an adjusting component 2 arranged on the side of the pump body 1, a connecting component 3 arranged inside the adjusting component 2, a shaft component 4 movably connected to the inside of the pump body 1, and a limiting component 5 arranged on the outside of the shaft component 4; the adjusting component 2 includes a tail cover plate 21 threadedly connected to the side of the pump body 1, a movable pin 22 movably connected to the side of the tail cover plate 21, a connecting seat 23 movably connected to the inside of the movable pin 22, a positioning seat 24 fixedly installed on the side of the connecting seat 23, and a flow limiting plate 25 movably connected to the outside of the positioning seat 24.

[0023] The size of the flow hole in the pump is adjusted by setting the adjusting component 2, so as to achieve the effect of controlling the flow. The connecting component 3 connects the shaft component 4, the adjusting component 2 and the limiting component 5.

[0024] In this embodiment, a limiting groove 26 is provided on the side of the tail cover plate 21, and a plurality of positioning notches 27 are provided on the inner side wall of the limiting groove 26. The movable latch 22 transversely penetrates the limiting groove 26 and is slidably connected with the tail cover plate 21. A positioning plug plate 28 is provided on the side of the movable latch 22 for embedding in the positioning notch 27. An oil outlet and an oil inlet are provided on the surface of the tail cover plate 21, and a plurality of evenly distributed oil holes are provided inside the limiting plate 25.

[0025] The movable latch 22 is embedded in the limiting groove 26 and the positioning plug plate 28 is inserted into the interior of the positioning notch 27 , thereby achieving fixation of the movable latch 22 .

[0026] In this embodiment, a hollow groove 221 is provided on the side of the movable latch 22, and a positioning spring 222 is fixedly installed on the inner wall of the hollow groove 221. One end of the connecting seat 23 is embedded in the interior of the hollow groove 221 and fixedly installed with the positioning spring 222. The inner surface of the hollow groove 221 and the side surface of the connecting seat 23 are provided with a limiting slide groove 223 that cooperates with each other, and a limiting slide rod 224 with a sliding connection is provided inside the limiting slide groove 223.

[0027] By setting the movable latch 22 and the connecting seat 23 to be connected through the positioning spring 222, the movable latch 22 can be extended and retracted, and the limiting slide bar 224 can simultaneously limit the position of the movable latch 22 and the connecting seat 23, so that the movable latch 22 can drive the positioning seat 24 to rotate.

[0028] In this embodiment, the connecting component 3 includes a guide plate 31 movably connected to the side of the positioning seat 24 , a plurality of guide holes 32 provided inside the guide plate 31 , and a guide ring 33 fixedly installed inside the guide holes 32 .

[0029] The guide hole 32 is arranged inside the guide plate 31 and cooperates with the guide ring 33 to guide the internal fluid and seal it at the same time.

[0030] In this embodiment, a through hole is opened inside the guide plate 31, the positioning seat 24 passes through the through hole horizontally and the guide plate 31 is fixedly installed by a movable buckle, a plurality of evenly distributed oil holes are opened inside the guide plate 31, and the side of the guide plate 31 and the inner wall of the pump body 1 are fixedly installed.

[0031] The positioning seat 24 is embedded in the guide plate 31 and fixedly installed at the same time, which facilitates the subsequent disassembly. At the same time, the fixed installation of the guide plate 31 and the pump body 1 fixes the position of the flow hole.

[0032] In this embodiment, the shaft component 4 includes a driving disk 41 rotatably connected to the inside of the pump body 1 , a driving shaft 42 fixedly installed inside the driving disk 41 , and a plurality of pushing rods 43 movably connected to the inside of the driving disk 41 .

[0033] The driving shaft 42 is provided to drive the driving disk 41 to rotate, so that the pushing rod 43 rotates along with the driving disk 41 .

[0034] In this embodiment, a plurality of through holes are formed inside the driving disk 41 , and the push rod 43 passes through the driving disk 41 transversely and is slidably connected to the driving disk 41 .

[0035] By arranging a push rod 43 in a sliding connection inside the driving disk 41, the push rod 43 can slide and retract autonomously under the squeezing of the internal liquid.

[0036] In this embodiment, the limiting component 5 includes a sealing plate 51 threadedly connected to the head of the pump body 1 and a bevel disc 52 fixedly mounted on the side of the sealing plate 51 .

[0037] The sealing of the pump body 1 is achieved by providing the sealing plate 51 , and the inclined disk 52 can push the rotating push rod 43 to move back and forth.

[0038] In this embodiment, the driving shaft 42 transversely penetrates the bevel disc 52 and the sealing plate 51 and is rotatably connected to the bevel disc 52 and the sealing plate 51 .

[0039] By arranging the drive shaft 42 to pass through the inclined disk 52 and the sealing plate 51 , the stability of the rotation of the drive shaft 42 inside the pump body 1 can be ensured.

[0040] The working principle of the above embodiment is:

[0041] By connecting the pump body 1 to the driving device to drive the rotation of the driving shaft 42, the driving shaft 42 drives the driving disk 41 to rotate, so that the push rod 43 rotates with the driving disk 41, and the inclined disk 52 drives the rotating push rod 43 to move back and forth, thereby pressurizing the oil entering the oil inlet and then discharging it through the oil outlet, thereby achieving the purpose of pressurization.

[0042] In addition, the positioning plug plate 28 is pulled out from the inside of the positioning groove 27, and then the movable pin 22 is rotated. Since the limiting slide bar 224 simultaneously limits the position of the movable pin 22 and the connecting seat 23, the rotation of the movable pin 22 drives the rotation of the positioning seat 24, and the rotation of the positioning seat 24 drives the rotation of the limiting plate 25. The rotation of the limiting plate 25 causes the relative positions of the limiting plate 25 and the guide plate 31 to be misaligned, thereby reducing the flow apertures of the two, thereby reducing the amount of oil passing therethrough, thereby achieving the purpose of controlling the flow rate, and solving the problem that the traditional axial piston pump has a relatively complex structure for controlling the internal oil inlet and outlet functions, which makes it inconvenient to disassemble and maintain later.

[0043] The electrical components appearing in the article are all electrically connected to the main controller and the power supply. The main controller can be a conventional known device for control such as a computer, and the existing public power connection technology is not described in detail in the article.

[0044] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0045] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention.

Claims

1. An axial piston pump with adjustable flow, characterized in that: It comprises a pump body (1), an adjusting component (2) arranged on the side of the pump body (1), a connecting component (3) arranged inside the adjusting component (2), an axial component (4) movably connected inside the pump body (1), and a limiting component (5) arranged outside the axial component (4); The regulating component (2) comprises a tail cover plate (21) threadedly connected to the side of the pump body (1), a movable latch (22) movably connected to the side of the tail cover plate (21), a connecting seat (23) movably connected inside the movable latch (22), a positioning seat (24) fixedly mounted on the side of the connecting seat (23), and a flow limiting plate (25) movably connected to the outside of the positioning seat (24).

2. The flow-adjustable axial piston pump according to claim 1, characterized in that: The connecting component (3) comprises a guide plate (31) movably connected to the side of the positioning seat (24), a plurality of guide holes (32) provided inside the guide plate (31), and a guide ring (33) fixedly installed inside the guide holes (32).

3. The flow-adjustable axial piston pump according to claim 1, characterized in that: The shaft component (4) comprises a driving disk (41) rotatably connected to the inside of the pump body (1), a driving shaft (42) fixedly installed inside the driving disk (41), and a plurality of pushing rods (43) movably connected to the inside of the driving disk (41).

4. The flow-adjustable axial piston pump according to claim 1, characterized in that: The limiting component (5) comprises a sealing plate (51) threadedly connected to the head of the pump body (1) and a bevel disc (52) fixedly mounted on the side of the sealing plate (51).

5. The flow-adjustable axial piston pump according to claim 1, characterized in that: The side of the tail cover (21) is provided with a limiting groove (26), the inner side wall of the limiting groove (26) is provided with a plurality of positioning notches (27), the movable latch (22) transversely penetrates the limiting groove (26) and is slidably connected with the tail cover (21), the side of the movable latch (22) is provided with a positioning plug plate (28) which is matched with the positioning notch (27) for embedding, the surface of the tail cover (21) is provided with an oil outlet and an oil inlet, and the interior of the limiting plate (25) is provided with a plurality of evenly distributed oil holes.

6. The flow-adjustable axial piston pump according to claim 5, characterized in that: The side of the movable latch (22) is provided with a hollow groove (221), the inner wall of the hollow groove (221) is fixedly mounted with a positioning spring (222), one end of the connecting seat (23) is embedded in the interior of the hollow groove (221) and is fixedly mounted with the positioning spring (222), the inner surface of the hollow groove (221) and the side surface of the connecting seat (23) are provided with a limiting slide groove (223) for use in coordination with each other, and a limiting slide rod (224) is provided inside the limiting slide groove (223) for sliding connection.

7. The flow-adjustable axial piston pump according to claim 2, characterized in that: The guide plate (31) is provided with a perforation inside, the positioning seat (24) passes through the perforation horizontally and the guide plate (31) is fixedly installed by movable buckles, a plurality of evenly distributed oil holes are provided inside the guide plate (31), and the side surface of the guide plate (31) is fixedly installed to the inner wall of the pump body (1).

8. The flow-adjustable axial piston pump according to claim 3, characterized in that: The driving disk (41) is provided with a plurality of through holes inside, and the pushing rod (43) penetrates the driving disk (41) transversely and is slidably connected to the driving disk (41).

9. The flow-adjustable axial piston pump according to claim 3, characterized in that: The driving shaft (42) transversely penetrates the inclined disk (52) and the sealing plate (51) and is rotationally connected to the inclined disk (52) and the sealing plate (51).

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