Steel plate shell motor centrifugal pump

Abstract

The utility model discloses a centrifugal pump with a motor with a steel plate shell, which relates to the technical field of centrifugal pumps and comprises a base, a motor body is fixedly mounted at the top of the base, a pump body is mounted at the end of the motor body, and the motor body drives the pump body to operate. An arc groove is formed in the bottom of a shell of the motor body, the arc groove is close to the pump body, and a filter screen is fixedly connected to the interior of the arc groove; a sliding sleeve is slidably arranged outside a shell of the motor body, the sliding sleeve is communicated with an air pipe, a movable ring is fixedly connected to the inner wall of the sliding sleeve, and the movable ring is located at the end, away from the pump body, of the sliding sleeve. According to the steel plate shell motor centrifugal pump, the sliding sleeve, the fixed ring and other structures are arranged, the sliding sleeve is matched with the movable ring, impurities outside the shell of the motor body can be rapidly cleaned through single-time movement, the effects of pushing, scraping, collecting and concentrating suction force are synchronously achieved, the steel plate shell motor centrifugal pump is suitable for an arc surface, the cleaning efficiency is guaranteed, and the use efficiency of the centrifugal pump is improved.

Description

Technical Field

[0001] This utility model relates to the field of centrifugal pump technology, and in particular to a steel plate shell motor centrifugal pump. Background Technology

[0002] Centrifugal pumps are designed based on the principle of centrifugal force. The high-speed rotating impeller blades drive the water to rotate, throwing the water out, thereby achieving the purpose of transportation.

[0003] In existing technologies, some centrifugal pumps do not use a heat sink structure, but instead rely on the thermal conductivity of the motor steel plate housing for heat dissipation and have simple ventilation holes on the housing to assist air circulation. However, in practical applications, there are still problems: the motor steel plate housing is exposed to dusty air for a long time, and dust, debris, fibers and other impurities in the air tend to continuously adhere to the outer surface of the housing. Operators need to use additional tools such as brushes to clean it, but because the outer wall of the housing is arc-shaped, the cleaning efficiency is low, which affects the use of the centrifugal pump.

[0004] Therefore, it is necessary to propose a steel plate shell motor centrifugal pump to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a steel plate shell motor centrifugal pump to solve the problem that the cleaning efficiency is low due to the arc-shaped outer wall of the shell, which affects the use of the centrifugal pump.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a steel plate shell motor centrifugal pump, including a base, a motor body fixedly installed on the top of the base, a pump body installed at the end of the motor body, and the motor body driving the pump body to run;

[0007] An arc groove is provided at the bottom of the motor body housing, the arc groove is close to the pump body, and a filter screen is fixedly connected inside the arc groove;

[0008] A sliding sleeve is slidably disposed on the outside of the motor body housing. An air duct is connected to the sliding sleeve. A movable ring is fixedly connected to the inner wall of the sliding sleeve, and the movable ring is located at the end of the sliding sleeve away from the pump body.

[0009] A fixing ring is fixedly connected to the outside of the motor body housing. The fixing ring is located on the side of the arc groove near the pump body. The sliding sleeve can abut against the fixing ring during the sliding process.

[0010] The thickness of the filter screen is less than the thickness of the motor body housing, and an accumulation area for impurities to accumulate is formed between the lower surface of the filter screen and the inner wall of the arc groove.

[0011] The width of the sliding sleeve is greater than the width of the arc groove;

[0012] The outer diameter of the fixed ring is larger than the outer diameter of the sliding sleeve.

[0013] Preferably, a ventilation space is reserved between the top of the base and the bottom of the motor body.

[0014] Preferably, a tail cover is provided at the end of the motor body away from the pump body, and a fan is provided inside the tail cover.

[0015] Preferably, the pump body is provided with an inlet end and an outlet end.

[0016] The technical effects and advantages of this utility model are as follows:

[0017] This utility model, by setting up structures such as sliding sleeves and fixed rings, utilizes the cooperation between the sliding sleeves and the movable rings to quickly clean impurities on the outside of the motor body housing with a single movement, and simultaneously achieves the effects of pushing, scraping, collecting, and concentrating suction. It is suitable for arc surfaces, ensures cleaning efficiency, and improves the efficiency of centrifugal pumps.

[0018] The arc groove is located at the bottom of the motor body housing to ensure ventilation at the bottom of the motor body, thereby ensuring heat dissipation efficiency;

[0019] The movement of the sliding sleeve and the movable ring can not only push and scrape impurities on the outside of the motor body housing, but also form a barrier space to assist in the suction of impurities. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the steel plate shell motor centrifugal pump of this utility model.

[0021] Figure 2 This is a schematic diagram of the tail cover and fan structure of this utility model.

[0022] Figure 3 This is a schematic diagram of the water inlet and water outlet of this utility model.

[0023] Figure 4 This is a schematic diagram of the sliding sleeve and movable ring structure of this utility model.

[0024] Figure 5 This is a schematic diagram of the filter screen and accumulation area structure of this utility model.

[0025] In the diagram: 1. Base; 2. Motor body; 3. Ventilation space; 4. Pump body; 5. Water inlet; 6. Water outlet; 7. Arc groove; 8. Filter screen; 9. Accumulation area; 10. Sliding sleeve; 11. Air duct; 12. Movable ring; 13. Fixed ring; 14. Tail cover; 15. Fan. Detailed Implementation

[0026] This utility model provides, for example Figures 1-5The centrifugal pump with a steel plate shell includes a base 1, and a motor body 2 is fixedly installed on the top of the base 1. The motor body 2 includes a shell, stator, rotor and other structures. The shell is cylindrical and made of high-quality thickened seamless cold-rolled steel plate. The outer surface is sandblasted and rust-removed and then electrostatically powder-coated to form a smooth, wear-resistant and corrosion-resistant coating, which gives the motor body good corrosion resistance and heat dissipation, while also making it neat and beautiful in appearance. The motor body 2 is connected to the factory power supply and operates when powered on.

[0027] A ventilation space 3 is reserved between the top of the base 1 and the bottom of the motor body 2, which helps the motor body 2 dissipate heat during operation and improves the working efficiency of the centrifugal pump.

[0028] A pump body 4 is installed at the end of the motor body 2. The pump body 4 has an impeller and other structures (not shown in the figure) inside. The pump body 4 has an inlet end 5 and an outlet end 6. When the motor body 2 is powered on, the motor body 2 drives the impeller inside the pump body 4 to rotate. Liquid is drawn in from the inlet end 5 and finally discharged from the outlet end 6, so as to realize the normal operation of the pump body 4.

[0029] A tail cover 14 is provided at the end of the motor body 2 away from the pump body 4. The end of the tail cover 14 away from the pump body 4 is made of mesh to allow gas to be discharged. A fan 15 is provided inside the tail cover 14 and is mounted on the rotor shaft of the motor body 2.

[0030] During the operation of the motor body 2, a certain amount of heat will be generated due to the interaction between the motor body 2 and the pump body 4 and the heat generated by the motor body 2 itself. In particular, the bottom of the motor body 2 is close to the ground and has a smaller heat dissipation space compared to other positions, so heat is easy to accumulate. In order to ensure the operating efficiency of the pump body 4, an arc groove 7 is provided at the bottom of the motor body 2 housing. The arc groove 7 is close to the pump body 4, and a filter screen 8 is fixedly connected inside the arc groove 7.

[0031] When the motor body 2 is running, the rotor drives the fan 15 to rotate. External air enters the interior of the motor body 2 housing through the arc groove 7 and is discharged through the tail cover 14, achieving the effect of ventilation. The filter screen 8 filters out impurities in the air. The arc groove 7 is located at the bottom of the motor body 2 housing, ensuring the ventilation volume at the bottom of the motor body 2, thereby ensuring heat dissipation efficiency.

[0032] The thickness of the filter screen 8 is less than the thickness of the motor body 2 housing. The lower surface of the filter screen 8 and the inner wall of the arc groove 7 form an accumulation area 9 for impurities to accumulate. The filtered impurities accumulate in the accumulation area 9, which is convenient for subsequent processing.

[0033] To clean impurities in the accumulation zone 9, a sliding sleeve 10 is slidably installed on the outside of the motor body 2 housing. The width of the sliding sleeve 10 is greater than the width of the arc groove 7, which can cover the arc groove 7. A movable ring 12 is fixedly connected to the inner wall of the sliding sleeve 10, and the movable ring 12 is located at the end of the sliding sleeve 10 away from the pump body 4. The movable ring 12 fits against the outer wall of the motor body 2 housing. The movable ring 12 can be made of, but is not limited to, rubber material and can be replaced periodically.

[0034] The sliding sleeve 10 is connected to the air duct 11. When in use, the air duct 11 can be connected to the gas extraction pipe of the factory or to the suction pipe of a vacuum cleaner.

[0035] A fixing ring 13 is fixedly connected to the outside of the motor body 2 housing. The outer diameter of the fixing ring 13 is larger than the outer diameter of the sliding sleeve 10. The fixing ring 13 is located on the side of the arc groove 7 near the pump body 4. The sliding sleeve 10 can abut against the fixing ring 13 during sliding. The fixing ring 13 can be made of rubber material with a certain hardness, but is not limited to rubber material. It will not deform arbitrarily and can be replaced periodically. At the same time, a rubber sealing ring (not shown in the figure) is provided at the end of the sliding sleeve 10 near the fixing ring 13. When the sliding sleeve 10 abuts against the fixing ring 13, the sliding sleeve 10 and the fixing ring 13 fit tightly together, and the movable ring 12 fits against the outer wall of the motor body 2 housing. Thus, the sliding sleeve 10, the movable ring 12 and the fixing ring 13 cooperate to form a barrier space to cover the arc groove 7 and the filter screen 8.

[0036] In actual use, an automatic latch, including a claw and a buckle, is set between the sliding sleeve 10 and the fixing ring 13 to achieve "one push to engage and one pull to disengage". The pushing and pulling force is appropriate and will not separate arbitrarily. When the sliding sleeve 10 and the fixing ring 13 are tightly engaged, the sliding sleeve 10 and the fixing ring 13 are automatically locked together, making operation convenient. Alternatively, the operator can press down on the sliding sleeve 10 to keep it stationary, and adjust it according to the specific use.

[0037] During the ventilation and heat dissipation stage of the motor body 2, the sliding sleeve 10 is located near the tail cover 14.

[0038] When a large amount of impurities accumulate in the accumulation zone 9 and need to be cleaned, the operator controls the sliding sleeve 10 to move towards the pump body 4, and the movable ring 12 to push and scrape against the motor body 2 housing. Compared with using additional tools such as brushes for cleaning, the sliding sleeve 10 and the movable ring 12 are more suitable for the arc-shaped outer shell of the motor body 2. A single movement can quickly clean the impurities on the outside of the motor body 2 housing, ensuring cleaning efficiency.

[0039] After cleaning the external impurities of the motor body housing 2, the heat dissipation effect of the housing can be guaranteed.

[0040] Furthermore, the impurities are collected inside the sliding sleeve 10 and move towards the pump body 4. After the sliding sleeve 10 and the fixed ring 13 are in contact, the movable ring 12 and the fixed ring 13 seal the two sides of the sliding sleeve 10, forming a barrier space. The impurities collected by pushing and scraping are located in this barrier space.

[0041] Next, the duct 11 sucks out the enclosed space. The suction is concentrated and can simultaneously remove the impurities in the accumulation area 9 and those collected by pushing and scraping, ensuring the effect of subsequent ventilation and heat dissipation. The external air enters the motor body 2 housing after being filtered by the tail cover 14 and flows out through the arc groove 7, realizing the gas flow at the arc groove 7 and the filter screen 8, ensuring the suction effect.

[0042] Compared to existing technologies that combine brush cleaning with vacuuming, where brushes are inefficient on curved surfaces and fail to collect impurities, and vacuum cleaner heads are typically flat or round and difficult to adapt to curved surfaces, resulting in dispersed suction, this invention achieves simultaneous scraping, collection, and concentrated suction by incorporating a sliding sleeve 10 and a fixing ring 13. This makes it suitable for curved surfaces, ensuring cleaning efficiency and improving the efficiency of the centrifugal pump.

[0043] The movement of the sliding sleeve 10 and the movable ring 12 can not only push and scrape impurities on the outside of the motor body 2 housing, but also form a barrier space to assist in the suction of impurities.

[0044] After cleaning, control the sliding sleeve 10 and other structures to reset.

Claims

1. A steel plate shell centrifugal pump, comprising a base (1), characterized in that: The base (1) is fixedly mounted with a motor body (2), and a pump body (4) is mounted at the end of the motor body (2). The motor body (2) drives the pump body (4) to run. The bottom of the motor body (2) housing is provided with an arc groove (7), the arc groove (7) is close to the pump body (4), and a filter screen (8) is fixedly connected inside the arc groove (7); A sliding sleeve (10) is slidably provided on the outside of the motor body (2) housing. An air duct (11) is connected to the sliding sleeve (10). A movable ring (12) is fixedly connected to the inner wall of the sliding sleeve (10), and the movable ring (12) is located at the end of the sliding sleeve (10) away from the pump body (4). The motor body (2) has a fixed ring (13) fixedly connected to the outside of the housing. The fixed ring (13) is located on the side of the arc groove (7) close to the pump body (4). The sliding sleeve (10) can abut against the fixed ring (13) during the sliding process. The thickness of the filter screen (8) is less than the thickness of the motor body (2) housing, and an accumulation area (9) for impurities to accumulate is formed between the lower surface of the filter screen (8) and the inner wall of the arc groove (7). The width of the sliding sleeve (10) is greater than the width of the arc groove (7); The outer diameter of the fixed ring (13) is larger than the outer diameter of the sliding sleeve (10).

2. A steel-shell centrifugal pump according to claim 1, characterized in that: A ventilation space (3) is reserved between the top of the base (1) and the bottom of the motor body (2).

3. A steel-shell centrifugal pump according to claim 1, characterized in that: The motor body (2) is provided with a tail cover (14) at the end away from the pump body (4), and a fan (15) is provided inside the tail cover (14).

4. A steel-shell centrifugal pump according to claim 1, characterized in that: The pump body (4) is provided with an inlet end (5) and an outlet end (6).

Images