Efficient large-flow end suction pump

Abstract

The utility model relates to the technical field of end suction pumps, and discloses an efficient large-flow end suction pump which comprises a heat dissipation pipe arranged in the end suction pump and making contact with the outer side wall of a bearing. The oil outlet pipe is in through connection with the input end of the oil pump; the cooling mechanism is arranged on the top of the base, and the input end of the cooling mechanism is communicated with the oil pump output shaft. When the controller controls the motor to be started, the controller controls the oil pump and the cooling mechanism to be started at the same time, the oil pump conveys cooling oil in the heat dissipation pipe to the cooling mechanism through the oil outlet pipe, the cooling mechanism cools the cooling oil, and the cooled cooling oil continues to flow back to the heat dissipation pipe through the oil inlet pipe. The heat dissipation pipe absorbs heat generated when the bearing rotates after making contact with the bearing, the heated cooling oil continues to be conveyed to the oil inlet pipe through the oil outlet pipe, circulation of the cooling oil is achieved, and therefore the heat dissipation effect is enhanced.

Description

Technical Field

[0001] This utility model relates to the field of end-suction pump technology, specifically a high-efficiency, high-flow-rate end-suction pump. Background Technology

[0002] End-suction pumps, with their advantages of low noise and high conversion efficiency, are gradually replacing the conventional units used in the liquid pump industry. When the pump's motor starts, the impeller on the shaft begins to rotate, generating centrifugal force. Under the action of centrifugal force and pressure difference, liquid enters the pump from the suction port, forming a negative pressure area and generating suction, drawing the medium connected to the suction pipe into the pump body. Inside the pump, the liquid is pushed towards the pump outlet by centrifugal force, and finally flows tangentially into the discharge pipeline, realizing the transportation and transfer of the liquid.

[0003] Existing end-suction pumps have bearings installed on the pump shaft and motor shaft to support the rotating shaft and enable it to rotate smoothly. However, the bearings on the end-suction pump cannot be cooled separately, which will cause the bearing temperature to rise and affect its performance and lifespan. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a high-efficiency, high-flow-rate end-suction pump with the advantage of separate heat dissipation for the bearing. This solves the problem that existing end-suction pumps are not convenient for separate heat dissipation of the bearing, which leads to increased bearing temperature and affects its performance and lifespan.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency, high-flow-rate end-suction pump, comprising a main body assembly, wherein the main body assembly includes:

[0008] The base has an end-suction pump installed on its top;

[0009] The bearing is mounted on the end suction pump;

[0010] A motor is mounted on the top of the base, and the motor output shaft extends into the end suction pump via a bearing.

[0011] A heat dissipation assembly is provided on the base, the end suction pump, and the bearing, the heat dissipation assembly comprising:

[0012] A heat dissipation pipe is disposed inside the end suction pump, and the heat dissipation pipe is in contact with the outer wall of the bearing.

[0013] An oil outlet pipe is connected to one end of the heat dissipation pipe, and the oil outlet pipe extends through and to the outside of the end suction pump.

[0014] An oil pump is located on the top of the base, and the oil outlet pipe is connected to the oil pump input end.

[0015] A cooling mechanism is located on the top of the base, and the input end of the cooling mechanism is connected through the output shaft of the oil pump.

[0016] An oil inlet pipe is connected to the other end of the heat dissipation pipe. The oil inlet pipe passes through and extends to the outside of the end suction pump and is connected to the output end of the cooling mechanism.

[0017] The controller is located on the top of the base and is electrically connected to the end suction pump, the bearing, the oil pump, and the cooling mechanism.

[0018] Preferably, the heat dissipation pipe is designed as a disc-shaped structure and is wound around the outside of the bearing.

[0019] Preferably, the oil inlet pipe is provided with heat insulation cotton on the outside.

[0020] Preferably, a temperature sensor is installed on the oil outlet pipe, and the temperature sensor is electrically connected to the controller.

[0021] Preferably, the end suction pump and the bearing are provided with an oil injection assembly, the oil injection assembly comprising:

[0022] An oil storage chamber is fixedly connected to the outer wall of the end suction pump, and the oil storage chamber is sleeved outside the motor output shaft;

[0023] An electric push rod is symmetrically arranged on the oil storage chamber, and the output shaft of the electric push rod passes through and extends into the oil storage chamber. The electric push rod is electrically connected to the controller.

[0024] The pressure plate is fixedly connected to the output shaft of the electric push rod, and the pressure plate is slidably connected to the inner wall of the oil storage chamber;

[0025] An oil-absorbing sponge is disposed inside the oil storage cavity;

[0026] The oil outlet is located on the side of the oil reservoir near the bearing.

[0027] Preferably, the oil outlet is provided in multiple symmetrical locations around its circumference.

[0028] (III) Beneficial Effects

[0029] Compared with the prior art, this utility model provides a high-efficiency, high-flow-rate end-suction pump, which has the following beneficial effects:

[0030] This end-suction pump offers the advantage of independent bearing cooling. When the controller starts the motor, it simultaneously starts the oil pump and cooling mechanism. The oil pump delivers cooling oil from the radiator tubes to the cooling mechanism via the outlet pipe. The cooling mechanism cools the oil, and the cooled oil then flows back to the radiator tubes via the inlet pipe. The radiator tubes absorb the heat generated by the bearing's rotation upon contact with it, and the heated cooling oil then flows back to the inlet pipe via the outlet pipe, thus circulating the cooling oil and enhancing the cooling effect. This solves the problem of existing end-suction pumps being inconvenient for independent bearing cooling, which leads to increased bearing temperature and affects its performance and lifespan. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of this utility model;

[0032] Figure 2 This is an enlarged structural diagram of point A in this utility model;

[0033] Figure 3 This is a schematic diagram of the rear view structure of this utility model;

[0034] Figure 4 This is a top view cross-sectional structural diagram of the end-suction pump in this utility model;

[0035] Figure 5 This is a top view cross-sectional diagram of the oil storage cavity in this utility model.

[0036] In the picture:

[0037] 1. Main body components; 11. Base; 12. End suction pump; 13. Bearings; 14. Motor;

[0038] 2. Heat dissipation components; 21. Heat dissipation pipes; 22. Oil outlet pipe; 23. Oil pump; 24. Cooling mechanism; 25. Oil inlet pipe; 26. Controller; 27. Temperature sensor;

[0039] 3. Oil injection assembly; 31. Oil storage chamber; 32. Electric push rod; 33. Pressure plate; 34. Oil-absorbing sponge; 35. Oil outlet; 4. Insulation cotton. Detailed Implementation

[0040] 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.

[0041] Example 1

[0042] See Figure 1-5 A high-efficiency, high-flow-rate end-suction pump includes a main body assembly 1, which includes: a base 11 with an end-suction pump 12 mounted on its top; a bearing 13 mounted on the end-suction pump 12; and a motor 14 mounted on the top of the base 11, with the output shaft of the motor 14 extending into the end-suction pump 12 via the bearing 13. A heat dissipation assembly 2 is mounted on the base 11, the end-suction pump 12, and the bearing 13. The heat dissipation assembly 2 includes: a heat dissipation pipe 21 disposed inside the end-suction pump 12, the heat dissipation pipe 21 contacting the outer wall of the bearing 13; and an oil outlet pipe 22 connected to one end of the heat dissipation pipe 21, the oil outlet pipe 22 penetrating and extending... The oil pump 23 is located on the top of the base 11, with the oil outlet pipe 22 connected to the input end of the oil pump 23. A cooling mechanism 24 is located on the top of the base 11, with its input end connected to the output shaft of the oil pump 23. An oil inlet pipe 25 is connected to the other end of the heat dissipation pipe 21, extending through and to the outside of the end pump 12, and connected to the output end of the cooling mechanism 24. A controller 26 is located on the top of the base 11 and is electrically connected to the end pump 12, the bearing 13, the oil pump 23, and the cooling mechanism 24. The heat dissipation pipe 21 is designed as a disc and is wound around the outside of the bearing 13. Insulation cotton 4 is provided on the outside of the oil inlet pipe 25.

[0043] During operation, the operator controls the motor 14 to start via controller 26. The impeller on the output shaft of motor 14 begins to rotate, generating centrifugal force, which enables the bearing 13 to transport and transfer liquid. When controller 26 starts motor 14, it simultaneously sends high-level or low-level signals to the corresponding output ports according to the program settings, controlling the drivers or contactors of oil pump 23 and cooling mechanism 24 to start simultaneously. Oil pump 23 transports the cooling oil inside heat sink 21 to cooling mechanism 24 through oil outlet pipe 22. Cooling mechanism 24 cools the cooling oil, and the cooled oil flows back to heat sink 21 through oil inlet pipe 25. After contacting bearing 13, heat sink 21 absorbs the heat generated by bearing 13's rotation. The heated cooling oil then flows back to oil inlet pipe 25 through oil outlet pipe 22, achieving cooling oil circulation and enhancing heat dissipation. The disc-shaped structure of heat sink 21 increases its contact area with bearing 13, thereby enhancing the heat dissipation effect of heat sink 21. After the cooling oil is delivered through the oil inlet pipe 25, the insulation cotton 4 outside the oil inlet pipe 25 is used to maintain the temperature of the cooling oil, reduce the degree of temperature rise during the delivery of the cooling oil, and avoid affecting the normal heat dissipation effect of the subsequent heat dissipation pipe 21.

[0044] The aforementioned oil inlet pipe 25 employs a conventional cooling method, such as using an oil cooler. Oil coolers typically have a tubular or plate structure with a cooling medium flowing inside. Hot oil and the cooling medium exchange heat within the oil cooler; the heat from the hot oil is transferred to the cooling medium, thus lowering the oil temperature. As long as cooling of the oil is achieved, the specific structure will not be elaborated upon here. The aforementioned motor 14 is a high-efficiency, energy-saving model, providing sufficient power to the end-suction pump 12. The high-efficiency motor 14 has a high power factor and low losses, converting more electrical energy into mechanical energy, thereby improving the overall efficiency of the pump and achieving high-efficiency, high-flow-rate operation.

[0045] Example 2

[0046] An auxiliary function has been added based on Embodiment 1.

[0047] See Figure 1-5 A temperature sensor 27 is installed on the oil outlet pipe 22, and the temperature sensor 27 is electrically connected to the controller 26. An oil injection assembly 3 is installed on the end suction pump 12 and the bearing 13. The oil injection assembly 3 includes: an oil storage chamber 31, fixedly connected to the outer wall of the end suction pump 12, and sleeved outside the output shaft of the motor 14; an electric push rod 32, symmetrically arranged on the oil storage chamber 31, the output shaft of the electric push rod 32 passing through and extending into the interior of the oil storage chamber 31, and the electric push rod 32 being electrically connected to the controller 26; a pressure plate 33, fixedly connected to the output shaft of the electric push rod 32, and slidably connected to the inner wall of the oil storage chamber 31; an oil-absorbing sponge 34, disposed inside the oil storage chamber 31; and an oil outlet 35, opened on the side of the oil storage chamber 31 near the bearing 13. Multiple oil outlets 35 are symmetrically arranged around the circumference.

[0048] When the cooled oil, heated by heat dissipation, flows through the oil outlet pipe 22, the temperature sensor 27 monitors the oil temperature. When the temperature exceeds the set value, the temperature sensor 27 sends the temperature data to the oil pump 23 via an electrical signal. The temperature sensor 27 then adjusts the flow rate of the cooling medium or the speed of the oil pump 23 to increase the heat dissipation effect and keep the oil temperature within a suitable range. During the use of the bearing 13, the operator injects lubricating oil into the bearing 13 through the oil injection assembly 3, which reduces frictional heat generation and helps dissipate heat. The operator injects lubricating oil into the oil reservoir 31 through the oil injection pipe at the top of the reservoir 31. The lubricating oil is absorbed by the oil-absorbing sponge 34, preventing it from flowing freely. When lubricating oil needs to be added to the bearing 13, the operator controls the electric push rod 32 via the controller 26. The electric push rod 32 pushes the pressure plate 33 towards the oil-absorbing sponge 34, squeezing out the lubricating oil from the sponge 34 and allowing it to flow through the oil outlet 35 to the bearing 13 for lubrication. The multiple oil outlets 35 allow the lubricating oil to be distributed more evenly in all parts of the bearing 13, reducing local wear and extending the service life of the bearing 13.

[0049] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency, high-flow-rate end-suction pump, comprising a main body assembly (1), wherein the main body assembly (1) includes: The base (11) has an end suction pump (12) installed on its top. Bearing (13) is mounted on the end suction pump (12); A motor (14) is located on the top of the base (11), and the output shaft of the motor (14) extends into the end suction pump (12) through a bearing (13); The feature is that a heat dissipation assembly (2) is provided on the base (11), the end suction pump (12), and the bearing (13), and the heat dissipation assembly (2) includes: A heat dissipation pipe (21) is disposed inside the end suction pump (12), and the heat dissipation pipe (21) is in contact with the outer wall of the bearing (13); An oil outlet pipe (22) is connected to one end of the heat dissipation pipe (21), and the oil outlet pipe (22) extends through and to the outside of the end suction pump (12); An oil pump (23) is located on the top of the base (11), and the oil outlet pipe (22) is connected to the input end of the oil pump (23). A cooling mechanism (24) is provided on the top of the base (11), and the input end of the cooling mechanism (24) is connected through to the output shaft of the oil pump (23); The oil inlet pipe (25) is connected to the other end of the heat dissipation pipe (21). The oil inlet pipe (25) extends through and to the outside of the end suction pump (12) and is connected to the output end of the cooling mechanism (24). The controller (26) is located on the top of the base (11) and is electrically connected to the end suction pump (12), the bearing (13), the oil pump (23) and the cooling mechanism (24).

2. The high-efficiency, high-flow-rate end-suction pump according to claim 1, characterized in that: The heat pipe (21) is designed as a disc-shaped structure and is wrapped around the outside of the bearing (13).

3. The high-efficiency, high-flow-rate end-suction pump according to claim 2, characterized in that: The oil inlet pipe (25) is provided with thermal insulation cotton (4) on the outside.

4. The high-efficiency, high-flow-rate end-suction pump according to claim 3, characterized in that: A temperature sensor (27) is installed on the oil outlet pipe (22), and the temperature sensor (27) is electrically connected to the controller (26).

5. The high-efficiency, high-flow-rate end-suction pump according to claim 4, characterized in that: The end suction pump (12) and the bearing (13) are provided with an oil injection assembly (3), the oil injection assembly (3) includes: The oil storage chamber (31) is fixedly connected to the outer wall of the end suction pump (12), and the oil storage chamber (31) is sleeved outside the output shaft of the motor (14); An electric push rod (32) is symmetrically arranged on the oil storage chamber (31). The output shaft of the electric push rod (32) passes through and extends into the oil storage chamber (31). The electric push rod (32) is electrically connected to the controller (26). The pressure plate (33) is fixedly connected to the output shaft of the electric push rod (32), and the pressure plate (33) is slidably connected to the inner wall of the oil storage chamber (31); An oil-absorbing sponge (34) is disposed inside the oil storage cavity (31); The oil outlet (35) is located on the side of the oil storage cavity (31) near the bearing (13).

6. The high-efficiency, high-flow-rate end-suction pump according to claim 5, characterized in that: The oil outlet (35) has multiple symmetrically arranged circumferentially.

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