Swash plate type plunger water pump with universal coupling structure

Abstract

The utility model discloses a swash plate type plunger water pump with a universal coupling structure, which comprises a stator assembly and a rotor assembly, a plurality of plunger assemblies are arranged on the rotor assembly, a swash plate assembly is arranged in the stator assembly, a universal hinge part is arranged at the inner end of the tail part of the rotor assembly, a pitched roof disc is hinged on the universal hinge part, and a plurality of plunger assemblies are arranged on the pitched roof disc. A tensioning structure is arranged between the plunger assembly and the pitched roof disc, and an oil guide structure used for conveying lubricating oil into the universal hinge portion and the tensioning structure is arranged between the stator assembly and the rotor assembly. Lubricating oil can be conveniently and efficiently conveyed to the universal hinging part and the tensioning structure in the swash plate type plunger water pump, it is guaranteed that key parts are well lubricated, friction and abrasion are effectively reduced, the working performance of the water pump is improved, and the service life of the water pump is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of water pump technology, and in particular to a swashplate plunger water pump with a universal coupling structure. Background Technology

[0002] Swashplate plunger pumps are widely used in many industrial fields due to their high efficiency. However, during the operation of swashplate plunger pumps, parts such as the universal joint and tensioning structure require good lubrication to reduce friction and wear, ensuring stable operation and service life. Existing swashplate plunger pumps have shortcomings in lubricant delivery, failing to effectively and conveniently deliver lubricant to critical parts, resulting in poor lubrication. This, in turn, affects the overall performance of the pump and may even lead to equipment failure, increasing maintenance costs and downtime.

[0003] Therefore, the existing water pump technology field needs further improvement. Utility Model Content

[0004] The purpose of this invention is to provide a swashplate plunger pump with a universal joint structure. By setting a special oil guiding structure, lubricating oil can be conveniently and efficiently delivered to the universal joint and the tensioning structure, ensuring good lubrication of key parts and improving the working performance and service life of the swashplate plunger pump.

[0005] To achieve the above objectives, the present invention adopts the following solution:

[0006] A swashplate plunger pump with a universal joint structure includes a stator assembly and a rotor assembly. The rotor assembly has multiple plunger assemblies, and the stator assembly contains a swashplate assembly. A universal joint is located at the inner end of the tail of the rotor assembly, and a slanted top disc is hinged to the universal joint. A tensioning structure is provided between the plunger assemblies and the slanted top disc. An oil guide structure for conveying lubricating oil to the universal joint and the tensioning structure is provided between the stator assembly and the rotor assembly.

[0007] Furthermore, the stator assembly includes a fixed housing, one end of which is provided with a front cover.

[0008] Furthermore, the rotor assembly includes an active rotating shaft disposed on the front cover, and a rotating component fixedly connected to the active rotating shaft is rotatably disposed inside the fixed housing.

[0009] Furthermore, multiple plunger assemblies are evenly distributed around the central circumference of the rotating component.

[0010] Furthermore, the plunger assembly includes a plunger hole disposed within the rotating member, and a plunger body is movably disposed within the plunger hole.

[0011] Furthermore, the tensioning structure includes a plurality of circular holes disposed on the inclined top disc, the number of the circular holes being the same as the number of the plunger holes and correspondingly disposed therebetween, the inner end of the plunger body passing through a corresponding circular hole and provided with a limiting ring, the limiting ring being in close contact with the circumferential movement of the inclined disc assembly.

[0012] Furthermore, the oil guiding structure includes an oil inlet disposed on the stator assembly, a rotating annular oil guiding groove disposed on the outer circumference of the rotor assembly, a fixed annular oil guiding groove disposed on the inner circumference of the stator assembly, the rotating annular oil guiding groove being rotatably disposed within the fixed annular oil guiding groove, a sealing structure disposed between the rotating annular oil guiding groove and the fixed annular oil guiding groove, an oil storage cavity disposed within the rotating component communicating with the universal joint and the tensioning structure, the oil storage cavity communicating with the rotating annular oil guiding groove, and the fixed annular oil guiding groove communicating with the oil inlet.

[0013] Furthermore, the stator assembly has a water inlet structure on one side and a water outlet structure on the other side, with the water inlet structure and the water outlet structure respectively connected to one of the plunger holes.

[0014] In summary, the advantages of this utility model over the prior art are:

[0015] This invention addresses the shortcomings of existing water pump technology. Through its structural design, it offers the following advantages: Firstly, its specially designed oil-guiding structure facilitates and efficiently delivers lubricating oil to the universal joint and tensioning structure within the swashplate plunger pump, ensuring excellent lubrication of critical components, effectively reducing friction and wear, and improving pump performance and service life. Secondly, it guarantees the stability and sealing of the lubricating oil during delivery, preventing leakage and improving lubricating oil utilization efficiency. Thirdly, its overall structural design is reasonable, with tight connections and fits between components, achieving excellent lubrication without affecting the normal operation of the swashplate plunger pump, thus ensuring high efficiency in pumping and draining water. Attached Figure Description

[0016] Figure 1 This is a perspective view of the present utility model;

[0017] Figure 2 This is one of the cross-sectional views of this utility model;

[0018] Figure 3 for Figure 2 A magnified view of part A;

[0019] Figure 4 This is the second sectional view of the present invention. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1-4 This utility model provides a swashplate plunger water pump with a universal coupling structure, including a stator assembly 1 and a rotor assembly 2. The rotor assembly 2 is provided with a plurality of plunger assemblies 3. The stator assembly 1 is provided with a swashplate assembly 4. The inner end of the tail of the rotor assembly 2 is provided with a universal hinge part 5. A slanted top disc 6 is hinged to the universal hinge part 5. A tensioning structure 7 is provided between the plunger assembly 3 and the slanted top disc 6. An oil guide structure 8 for conveying lubricating oil to the universal hinge part 5 and the tensioning structure 7 is provided between the stator assembly 1 and the rotor assembly 2.

[0022] The stator assembly 1 of this utility model includes a fixed housing 101, and a front cover 102 is provided at one end of the fixed housing 101;

[0023] When the swashplate plunger pump is running, lubricating oil flows in from the oil inlet 801 on the stator assembly 1. Since the oil inlet 801 is connected to the fixed annular oil guide groove 803, the lubricating oil enters the fixed annular oil guide groove 803. When the rotor assembly 2 rotates, it drives the rotating annular oil guide groove 802 on the outer circumference to rotate within the fixed annular oil guide groove 803. With the help of the sealing structure between the two, the lubricating oil is guided into the rotating annular oil guide groove 802. As the rotating annular oil guide groove 802 rotates, the lubricating oil enters the rotating component 202 through the connected oil storage chamber 804. Since the oil storage chamber 804 is connected to the universal joint 5 and the tensioning structure 7, the lubricating oil is finally delivered to the universal joint 5 and the tensioning structure 7 to achieve lubrication. At the same time, the rotating component 202 drives the plunger assembly 3 to work, and the plunger body 302 reciprocates in the plunger hole 301, cooperating with the swash plate assembly 4 to complete the water pumping and draining. The tensioning structure 7 ensures that the plunger assembly 3 is stably connected to the inclined top disc 6, and the circumferential movement of the limiting ring 702 on the swash plate assembly 4 is also smoother due to lubrication.

[0024] Multiple plunger assemblies 3 are evenly distributed around the central circumference of the rotating component 202, with the plunger bodies 302 movably disposed within the plunger holes 301. When the rotor assembly 2 drives the rotating component 202 to rotate via the drive shaft 201, the swashplate assembly 4 is fixed within the stator assembly 1. The tilt angle of the swashplate causes the plunger bodies 302 to reciprocate linearly within the plunger holes 301. At one end near the swashplate assembly 4, the inner end of the plunger body 302 passes through the corresponding circular hole 701 on the swashplate 6. As the rotating component 202 rotates, the plunger body 302, constrained by the swashplate assembly 4, performs telescoping motion, thereby achieving the intake and discharge of liquid. In conjunction with the water inlet structure on one side and the water outlet structure on the other side of the stator assembly 1, this completes the pumping and draining operation.

[0025] Working principle of tension structure

[0026] In the tensioning structure 7, the number of circular holes 701 on the swashplate 6 is the same as the number of corresponding holes 301 on the plunger 301. The inner end of the plunger body 302 passes through the circular hole 701 and is fitted with a limiting ring 702. During the operation of the water pump, the limiting ring 702 always adheres to the swashplate assembly 4 and makes a circular motion. The tensioning structure 7 ensures the connection stability between the plunger assembly 3 and the swashplate 6, enabling the plunger body 302 to reliably reciprocate under the action of the swashplate assembly 4, while transmitting the motion of the plunger body 302 to the swashplate 6, maintaining the stable operation of the entire transmission system.

[0027] Working principle of integral transmission

[0028] The drive shaft 201 is connected to the front cover 102 and drives the rotating component 202 to rotate within the fixed housing 101. The universal joint 5 is located at the inner end of the rotor assembly 2's tail and is hinged to the inclined top disk 6, converting the rotation of the rotating component 202 into the oscillation of the inclined top disk 6. The inclined top disk 6 is connected to the plunger assembly 3 via the tensioning structure 7, driving the plunger body 302 to reciprocate within the plunger hole 301, thus cooperating with the swashplate assembly 4 to pump the liquid. Throughout the transmission process, all components cooperate with each other. The hinge design of the universal joint 5 and the connection of the tensioning structure 7 ensure effective power transmission and stable operation of the structure, enabling the pump to operate continuously and efficiently.

[0029] The rotor assembly 2 of this utility model includes an active rotating shaft 201 disposed on the front cover 102, and a rotating component 202 fixedly connected to the active rotating shaft 201 is rotatably disposed inside the fixed housing 101.

[0030] In this invention, multiple plunger assemblies 3 are evenly distributed around the central circumference of the rotating component 202.

[0031] The plunger assembly 3 of this utility model includes a plunger hole 301 disposed in the rotating member 202, and a plunger body 302 is movably disposed in the plunger hole 301.

[0032] The tensioning structure 7 of this utility model includes a plurality of circular holes 701 disposed on the inclined top disc 6. The number of circular holes 701 is the same as the number of plunger holes 301 and is disposed accordingly. The inner end of the plunger body 302 passes through a corresponding circular hole 701 and is provided with a limiting ring 702. The limiting ring 702 is close to the circumferential movement of the inclined disc assembly 4.

[0033] The oil guiding structure 8 of this utility model includes an oil inlet 801 disposed on the stator assembly 1, a rotating annular oil guiding groove 802 disposed on the outer circumference of the rotor assembly 2, and a fixed annular oil guiding groove 803 disposed on the inner circumference of the stator assembly 1. The rotating annular oil guiding groove 802 is rotatably disposed within the fixed annular oil guiding groove 803. A sealing structure is disposed between the rotating annular oil guiding groove 802 and the fixed annular oil guiding groove 803. An oil storage cavity 804 is disposed within the rotating component 202, connecting the universal joint 5 and the tensioning structure 7. The oil storage cavity 804 is connected to the rotating annular oil guiding groove 802, and the fixed annular oil guiding groove 803 is connected to the oil inlet 801.

[0034] The stator assembly 1 of this utility model is provided with a water inlet structure 100 on one side and a water outlet structure 200 on the other side. The water inlet structure 100 and the water outlet structure 200 are respectively connected to one of the plunger holes 301.

[0035] The foregoing has shown and described the basic principles and main features of this utility model, as well as its advantages. 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. A swashplate plunger pump with a universal joint structure, comprising a stator assembly (1) and a rotor assembly (2), wherein a plurality of plunger assemblies (3) are disposed on the rotor assembly (2), and a swashplate assembly (4) is disposed within the stator assembly (1), characterized in that: The rotor assembly (2) has a universal joint (5) at its inner tail end, and a slanted top disk (6) is hinged on the universal joint (5). A tensioning structure (7) is provided between the plunger assembly (3) and the slanted top disk (6). An oil guide structure (8) is provided between the stator assembly (1) and the rotor assembly (2) for transmitting lubricating oil to the universal joint (5) and the tensioning structure (7).

2. A swashplate plunger pump with a universal coupling structure according to claim 1, characterized in that: The stator assembly (1) includes a fixed housing (101), and a front cover (102) is provided at one end of the fixed housing (101).

3. A swashplate plunger pump with a universal coupling structure according to claim 2, characterized in that: The rotor assembly (2) includes an active rotating shaft (201) disposed on the front cover (102), and a rotating component (202) fixedly connected to the active rotating shaft (201) is rotatably disposed inside the fixed housing (101).

4. A swashplate plunger pump with a universal coupling structure according to claim 3, characterized in that: Multiple plunger assemblies (3) are evenly distributed around the central circumference of the rotating member (202).

5. A swashplate plunger pump with a universal coupling structure according to claim 4, characterized in that: The plunger assembly (3) includes a plunger hole (301) disposed in the rotating member (202), and a plunger body (302) is movably disposed in the plunger hole (301).

6. A swashplate plunger pump with a universal coupling structure according to claim 5, characterized in that: The tensioning structure (7) includes a plurality of circular holes (701) provided on the inclined top disc (6). The number of circular holes (701) is the same as the number of plunger holes (301) and they are provided accordingly. The inner end of the plunger body (302) passes through a corresponding circular hole (701) and is provided with a limiting ring (702). The limiting ring (702) is close to the swashplate assembly (4) and moves in a circular motion.

7. A swashplate plunger pump with a universal coupling structure according to claim 6, characterized in that: The oil guiding structure (8) includes an oil inlet (801) disposed on the stator assembly (1), a rotating annular oil guiding groove (802) is disposed on the outer circumference of the rotor assembly (2), a fixed annular oil guiding groove (803) is disposed on the inner circumference of the stator assembly (1), the rotating annular oil guiding groove (802) is rotatably disposed in the fixed annular oil guiding groove (803), a sealing structure is disposed between the rotating annular oil guiding groove (802) and the fixed annular oil guiding groove (803), an oil storage cavity (804) is disposed in the rotating part (202) that connects the universal joint (5) and the tensioning structure (7), the oil storage cavity (804) and the rotating annular oil guiding groove (802) are connected, and the fixed annular oil guiding groove (803) and the oil inlet (801) are connected.

8. A swashplate plunger pump with a universal coupling structure according to claim 7, characterized in that: The stator assembly (1) has a water inlet structure (100) on one side and a water outlet structure (200) on the other side. The water inlet structure (100) and the water outlet structure (200) are respectively connected to one of the plunger holes (301).

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