Assembly structure of amphibious pump

Abstract

The utility model relates to the technical field of pumps, and provides an assembly structure of an amphibious pump, which comprises a pump body assembly, a mechanical seal cover, an impeller, a water inlet flange, a motor rear end cover, an outer cover and a locking device, a motor is arranged in the pump body assembly, the mechanical seal cover is arranged on one side in the pump body assembly, and the impeller is arranged on the other side in the pump body assembly. The impeller is arranged on an output shaft of the motor, the water inlet flange is arranged on the side, close to the impeller, of the pump body assembly, the motor rear end cover is arranged on the other side of the pump body assembly, the outer cover is arranged on the outer side of the pump body assembly in a sleeving mode, and the locking device is arranged between the outer cover and the motor rear end cover. According to the integrally-formed pump body assembly, assembly among parts is remarkably reduced, the overall rigidity and stability of the structure are enhanced, performance reduction caused by assembly and combination errors is reduced, and interstitial corrosion generated by electrochemical reaction among media is reduced in long-term operation, so that the durability and reliability of equipment are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pumps, in particular to an assembly structure of an amphibious pump. Background Art

[0002] The assembly structure of an amphibious pump is a pump with two working states, on water and on land. It can operate in water and on land and has a wide range of applications. It is an indispensable pumping equipment for domestic water, farmland irrigation, and ship loading and unloading.

[0003] At present, the pump body of a traditional water pump is generally connected by bolts in sequence, including the motor housing, the motor end cover, and the pump housing. In this way, gap corrosion is prone to occur between the motor housing, the motor end cover, and the pump housing, which results in high maintenance costs. In addition, the setting of the bolt column on the pump housing will form resistance to the water flow at the water inlet end, resulting in reduced pump efficiency. In view of this, this application is specially proposed. Utility Model Content

[0004] The present application proposes an amphibious pump assembly structure to solve the technical problem that the pump body in the prior art is generally connected by bolts in sequence with the motor housing, the motor front cover, and the pump housing, so that gap corrosion is prone to occur between the motor housing, the motor front cover, and the pump housing, the maintenance cost is high, and the setting of the bolt column on the pump housing will block the water flow at the water outlet, increase the water flow resistance, and reduce the pumping efficiency of the pump. The above technical purpose of the utility model is achieved through the following technical solutions:

[0005] An amphibious pump assembly structure comprises a pump body assembly, a machine seal, an impeller, a water inlet flange, a motor rear end cover, an outer cover and a locking device, wherein a motor is arranged inside the pump body assembly, the machine seal is arranged at one side inside the pump body assembly, the impeller is arranged on the output shaft of the motor, the water inlet flange is arranged at one side of the pump body assembly close to the impeller, the motor rear end cover is arranged at the other side of the pump body assembly, the outer cover is sleeved on the outside of the pump body assembly, and the locking device is arranged between the outer cover and the motor rear end cover;

[0006] The pump body assembly includes a pump body shell, a motor shell, an oil chamber and a motor front end cover. The pump body shell is connected to one side of the motor shell. A plurality of flow channels are evenly spaced on the pump body shell. A plurality of guide members are provided between the pump body shell and the motor shell. The guide members are all located at the outlet extension position of the flow channel. The motor front end cover is arranged at the inner bottom of the motor shell. An oil chamber is formed between the front end cover at the bottom of the motor shell and the inside of the pump body shell. The oil chamber is located below the motor front end cover. The pump body shell, the motor shell, the oil chamber and the motor front end cover are integrally formed.

[0007] Preferably, the outer cover and the pump body shell are both provided with mounting rings, the mounting rings are both provided with a plurality of threaded holes, and the outer cover and the pump body shell are connected by screws passing through the corresponding threaded holes on the mounting rings.

[0008] Preferably, a threaded section is provided at the center of one side of the rear end cover of the motor.

[0009] Preferably, the locking device comprises a limiting ring and a nut, the limiting ring is arranged on the outer cover, the threaded section on the rear end cover of the motor passes through the limiting ring, and the nut is arranged on the threaded section for locking and positioning.

[0010] Preferably, the flow channel is inclined upward from the water inlet end along the direction of the guide member, and the water inlet end of the flow channel is communicated with the water inlet flange.

[0011] Preferably, the number of the flow channels is four.

[0012] Compared with the prior art, the beneficial effects of the present invention include:

[0013] 1. The one-piece pump body assembly (including pump body shell, motor shell, oil chamber and motor front cover) significantly reduces the assembly between components, which not only enhances the overall rigidity and stability of the structure, but also reduces the performance degradation caused by assembly combination errors. In long-term operation, it reduces the gap corrosion caused by electrochemical reactions between media, thereby improving the durability and reliability of the equipment.

[0014] 2. Four inclined flow channels and guides form four diffusion tubes, which optimize the flow direction of water, reduce the occurrence of turbulence and turbulence, reduce energy loss, and improve the working efficiency of the pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is an exploded view of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the pump assembly of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the front end cover of the motor of the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the oil chamber of the utility model;

[0019] Figure 5 It is a plan view of the limit ring of the utility model.

[0020] In the figure: 1. Pump body assembly; 2. Machine seal cover; 3. Impeller; 4. Water inlet flange; 5. Motor rear end cover; 6. Outer cover; 7. Pump body shell; 8. Motor shell; 9. Motor front end cover; 10. Flow channel; 11. Guide; 12. Oil chamber; 13. Mounting ring; 14. Limiting ring; 15. Nut. DETAILED DESCRIPTION

[0021] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.

[0024] Please see attached Figure 1-5 , an amphibious pump assembly structure, including a pump body assembly 1, a machine seal cover 2, an impeller 3, a water inlet flange 4, a motor rear end cover 5, an outer cover 6 and a locking device, wherein a motor is arranged inside the pump body assembly 1, the machine seal cover 2 is arranged on one side inside the pump body assembly 1, the impeller 3 is arranged on the output shaft of the motor, the water inlet flange 4 is arranged on one side of the pump body assembly 1 close to the impeller 3, the motor rear end cover 5 is arranged on the other side of the pump body assembly 1, the outer cover 6 is sleeved on the outside of the pump body assembly 1, and the locking device is arranged between the outer cover 6 and the motor rear end cover 5;

[0025] The pump body assembly 1 includes a pump body shell 7, a motor shell 8, an oil chamber 12 and a motor front end cover 9. The pump body shell 7 is connected to one side of the motor shell 8. The motor shell 8 and the inner side of the pump body shell 7 form an oil chamber 12. A plurality of flow channels 10 are evenly spaced on the pump body shell 7. A plurality of guide members 11 are provided between the pump body shell 7 and the motor shell 8. The guide members 11 are all located at the outlet extension position of the flow channel 10. The motor front end cover 9 is arranged at the inner bottom of the motor shell 8. The pump body shell 7, the motor shell 8 and the motor front end cover 9 are integrally formed. The flow channel 10 is inclined upward from the water inlet end along the direction of the guide member 11. The water inlet end of the flow channel 10 is connected to the water inlet flange 4. There are four flow channels 10.

[0026] By adopting the above technical solution, the pump body shell 7, motor shell 8, oil chamber 12 and motor front end cover 9 are integrally formed. The integrally formed pump body assembly significantly reduces the assembly between components, which not only enhances the overall rigidity and stability of the structure, but also reduces the performance degradation caused by assembly combination errors. In long-term operation, the gap corrosion caused by electrochemical reactions between media is reduced, thereby improving the durability and reliability of the equipment.

[0027] By providing four flow channels 10 and corresponding guide members 11, the water flow from the water inlet flange 4 flows into the interior of the pump housing 7 chamber, and the impeller 3 in the pump housing 7 chamber pressurizes the water flow under the drive of the motor, so that the water flow obtains sufficient flow velocity and pressure when passing through the impeller 3 and the pump housing 7 chamber, so that the water flow flows out from the flow channel 10 along the guide member 11 at a high speed, and flows to the water outlet end of the outer housing 6 through the channel between the outer housing 6 and the motor housing 8;

[0028] In detail, the water inlet end of the flow channel 10 is connected to the inner cavity of the pump body shell 7. Since the pump body assembly 1 is an integrated structure, there is no need to set screw positions for locking the front end cover of the motor, the motor shell, the pump body shell, and the oil chamber. Therefore, water flows through the flow channel 10 without being blocked by the screw positions, the water flow resistance is reduced, and the efficiency of the pump is increased. In addition, the space of the reduced screw positions can be fully utilized to optimize the flow channel structure and further improve the efficiency of the pump.

[0029] It should be noted that the water outlet end of the outer cover 6 is located at the center position of one end of the outer cover 6, and the water in the four flow channels 10 flows evenly to the outer flow channel forming a closed cavity between the outer cover 6 and the pump body assembly 1, and converges at the water outlet end of the outer cover 6, thereby reducing the energy consumption of water flow and improving the efficiency of the pump.

[0030] In some embodiments, an oil chamber 12 is formed between the front end cover at the bottom of the motor housing 8 and the interior of the pump body housing 7. The oil chamber 12 is mainly used to store lubricating oil, which plays a role in lubricating and cooling the mechanical seal during motor operation, thereby extending the service life of the pump and the motor.

[0031] In some embodiments, both the outer cover 6 and the pump body shell 7 are provided with mounting rings 13 , and the mounting rings 13 are provided with a plurality of threaded holes. The outer cover 6 and the pump body shell 7 are connected by screws passing through the corresponding threaded holes on the mounting rings 13 .

[0032] By adopting the above technical solution, by providing the mounting ring 13 and the threaded hole, the outer cover 6 and the pump body assembly 1 are threadedly connected, so that the outer cover 6 can be fixed to the pump body assembly 1.

[0033] In some embodiments, a threaded section is provided at the center of one side of the rear end cover 5 of the motor.

[0034] In some embodiments, the locking device includes a limiting ring 14 and a nut 15 . The limiting ring 14 is disposed on the outer cover 6 . The threaded section on the rear end cover 5 of the motor passes through the limiting ring 14 . The nut 15 is disposed on the threaded section.

[0035] By adopting the above technical solution and providing a locking device, the threaded section passes through the limiting ring 14 at the center of the outer cover 6 and is fixed by the nut 15, so that the matching stability between the outer cover 6 and the pump body assembly 1 is guaranteed.

[0036] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation on the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. In addition, the claims attached to the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the attached claims, or the equivalent forms of such scope and boundaries.

Claims

1. An amphibious pump assembly structure, characterized in that: The pump assembly (1) comprises a pump body assembly (1), a machine seal cover (2), an impeller (3), a water inlet flange (4), a motor rear end cover (5), an outer cover (6) and a locking device, wherein a motor is provided inside the pump body assembly (1), the machine seal cover (2) is arranged on one side inside the pump body assembly (1), the impeller (3) is arranged on the output shaft of the motor, the water inlet flange (4) is arranged on one side of the pump body assembly (1) close to the impeller (3), the motor rear end cover (5) is arranged on the other side of the pump body assembly (1), the outer cover (6) is sleeved on the outside of the pump body assembly (1), and the locking device is arranged between the outer cover (6) and the motor rear end cover (5); The pump body assembly (1) comprises a pump body shell (7), a motor shell (8), an oil chamber (12) and a motor front end cover (9); the pump body shell (7) is connected to one side of the motor shell (8); a plurality of flow channels (10) are evenly spaced on the pump body shell (7); a plurality of guide members (11) are provided between the pump body shell (7) and the motor shell (8); the guide members (11) are all located at the outlet extension position of the flow channels (10); the motor front end cover (9) is arranged at the inner bottom of the motor shell (8); an oil chamber (12) is formed between the bottom of the motor shell (8) and the inside of the pump body shell (7); the oil chamber (12) is located below the motor front end cover (9); the pump body shell (7), the motor shell (8), the oil chamber (12) and the motor front end cover (9) are integrally formed.

2. The assembly structure of an amphibious pump according to claim 1, characterized in that: The outer cover (6) and the pump body shell (7) are both provided with a mounting ring (13), and the mounting ring (13) is provided with a plurality of threaded holes. The outer cover (6) and the pump body shell (7) are connected by screws passing through corresponding threaded holes on the mounting ring (13).

3. The assembly structure of an amphibious pump according to claim 1, characterized in that: A threaded section is provided at the center of one side of the rear end cover (5) of the motor.

4. The assembly structure of an amphibious pump according to claim 3, characterized in that: The locking device comprises a limiting ring (14) and a nut (15); the limiting ring (14) is arranged on the outer cover (6); the threaded section on the rear end cover (5) of the motor passes through the limiting ring (14); and the nut (15) is arranged on the threaded section to lock and position.

5. The assembly structure of an amphibious pump according to claim 1, characterized in that: The flow channel (10) is inclined upward from the water inlet end along the direction of the guide member (11), and the water inlet end of the flow channel (10) is in communication with the water inlet flange (4).

6. The assembly structure of an amphibious pump according to claim 1, characterized in that: The number of the flow channels (10) is four.

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