Oil-submerged pump motor adopting centering bearing sliding structure

Abstract

The utility model discloses an oil-submerged pump motor adopting a centering bearing sliding structure, which comprises a motor main body, a notch is arranged on one side of the motor main body, an oil inlet mechanism and a filter mechanism are arranged in the notch, the filter mechanism is positioned on the upper side of the oil inlet mechanism, the filter mechanism comprises a fixed shell, a sliding shell and a filter screen, the fixed shell is fixedly mounted in the notch, and the sliding shell is fixedly mounted in the notch. The sliding shell is installed in the fixed shell in a sliding mode, a clamping groove is formed in the circumferential side of the inner wall of the sliding shell, the filter screen is fixedly installed in the clamping groove, threaded notches are formed in the upper side of the sliding shell and the upper side of the fixed shell, and fixing bolts are installed in the two corresponding threaded notches in a threaded mode. According to the oil-submerged pump motor, impurity particles in the filled lubricating oil can be filtered and blocked through the arranged filtering mechanism, the impurity particles stored in the oil liquid are prevented from entering the motor along with the oil liquid, and abrasion to the interior of the motor is avoided, so that the practicability of the oil-submerged pump motor in use is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of submersible oil pump motors, in particular to a submersible oil pump motor adopting a sliding structure of a centering bearing. Background Technique

[0002] In the prior art, the main structure of a special motor for submersible oil pumps consists of a stator shell, connecting flanges at both ends of the shell; a shaft, two half rings fixed on the shaft, a thrust bearing, a rotor, a rotor bearing sleeve and a rotor bearing;

[0003] For example, Chinese Patent with the application number CN201821813541.6 applied for a special motor for submersible oil pumps adopting a new structure of a centering sliding bearing. The special motor for submersible oil pumps adopting the new structure of a centering sliding bearing includes a shell, a stator and a rotor. A rotor bearing sleeve and a rotor bearing are installed on the rotor. The characteristics are as follows: the rotor bearing sleeve is made of cemented carbide, the rotor bearing consists of an outer circle and an inner circle. The inner circle is made of copper and a wear-resistant composite material is compounded on the inner side surface. The outer circle is made of non-magnetic stainless steel. According to a submersible oil pump adopting a new structure of a motor centering sliding bearing provided by the utility model, by improving the rotor bearing sleeve and the rotor bearing, problems such as eddy current, temperature rise, short service life and low efficiency are solved;

[0004] When the existing common special motor for submersible oil pumps is in use, lubricating oil needs to be added into the motor to play a lubricating role in the motor. However, the existing oil inlet does not have a filtering mechanism, so that impurity particles in the oil will enter the motor along with the oil, which is likely to cause abrasion to the inside of the motor. Therefore, it is urgent to design a submersible oil pump motor adopting a sliding structure of a centering bearing to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a submersible oil pump motor adopting a sliding structure of a centering bearing to solve the above deficiencies in the prior art.

[0006] In order to achieve the above purpose, the utility model provides the following technical solution:

[0007] A submersible oil pump motor adopting a sliding structure of a centering bearing includes a motor main body. A notch is arranged on one side of the motor main body. An oil inlet mechanism and a filtering mechanism are arranged in the notch. The filtering mechanism is located above the oil inlet mechanism. The filtering mechanism includes a fixed shell, a sliding shell and a filter screen. The fixed shell is fixedly installed in the notch. The sliding shell is slidably installed in the fixed shell. A clamping groove is formed on the circumferential side of the inner wall of the sliding shell. The filter screen is fixedly installed in the clamping groove. Threaded notches are formed on the upper sides of the sliding shell and the fixed shell. Two corresponding threaded notches are internally threaded with fixing bolts.

[0008] An open groove is formed on one side of the sliding shell, the open groove is communicated with the clamping groove, and one side of the filter screen is located in the open groove.

[0009] The oil inlet mechanism includes an oil inlet shell, a sealing seat, a sealing bead and a spring. The oil inlet shell is fixedly installed in the slot, the sealing seat is fixedly installed in the oil inlet shell, a connecting plate is arranged on the lower side of the oil inlet shell, a spring is arranged between the connecting plate and the sealing bead, and the sealing bead is movably inserted in the sealing seat.

[0010] The upper side of the oil inlet shell is provided with a first oil port, the lower side of the connecting plate is provided with a second oil port, and the upper side of the oil inlet shell is tightly fitted with the lower side of the fixed shell.

[0011] The motor body includes a casing, a stator, a rotor, a rotating shaft and a centering bearing. The stator is arranged on the circumferential side of the inner wall of the casing. The rotating shaft is fixedly connected to the rotor. The rotor is rotatably installed in the casing through the rotating shaft. The rotor is located between the inner walls of the stator. The centering bearing is arranged on one side of the rotor.

[0012] A sensor is arranged at one end of the shell, and a cable connector is arranged at one side of the shell.

[0013] In the above technical solution, the submersible pump motor with the centralizing bearing sliding structure provided by the utility model has the following beneficial effects:

[0014] (1) The filter mechanism can filter and block the impurity particles in the added lubricating oil, preventing the impurity particles in the oil from entering the motor with the oil and causing wear and tear on the inside of the motor, thereby improving the practicality of the submersible pump motor when in use.

[0015] (2) By setting up the sliding shell, the fixing bolts can be unscrewed to release the fixing of the sliding shell, and then the sliding shell can be pulled so that the sliding shell drives the filter to separate from the fixed shell, thereby making it convenient for the user to clean the foreign particles on the filter.

[0016] (3) By setting the open groove, when the filter is damaged, the sliding shell is pulled to drive the filter to separate from the fixed shell, and the filter can be removed through the open groove. Then, a new filter can be installed in the slot through the open groove, thereby improving the convenience of using the submersible oil pump motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 The overall structural schematic diagram provided for the submersible oil pump motor embodiment adopting the sliding structure of the centering bearing of the present utility model.

[0019] Figure 2 The overall sectional structural schematic diagram provided for the submersible oil pump motor embodiment adopting the sliding structure of the centering bearing of the present utility model.

[0020] Figure 3 The sectional structural schematic diagram of the filtering mechanism provided for the submersible oil pump motor embodiment adopting the sliding structure of the centering bearing of the present utility model.

[0021] Figure 4 The overall structural schematic diagram of the sliding housing provided for the submersible oil pump motor embodiment adopting the sliding structure of the centering bearing of the present utility model.

[0022] Figure 5 The sectional structural schematic diagram of the oil inlet mechanism provided for the submersible oil pump motor embodiment adopting the sliding structure of the centering bearing of the present utility model.

[0023] 1. Motor main body; 2. Outer shell; 3. Stator; 4. Rotor; 5. Rotating shaft; 6. Centering bearing; 7. Sensor; 8. Cable joint; 9. Filtering mechanism; 10. Oil inlet mechanism; 11. Fixed housing; 12. Sliding housing; 13. Filter screen; 14. Card slot; 17. Threaded notch; 18. Fixed bolt; 19. Open slot; 20. Oil inlet housing; 21. Sealing seat; 22. Sealing bead; 23. Spring; 24. Connecting plate; 25. Second oil port; 26. First oil port. Detailed implementation manners

[0024] In order to enable those skilled in the art to better understand the technical solutions of the present utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0025] Such as Figures 1-5As shown in the figure, the submersible pump motor adopting the sliding structure of the centering bearing provided by the embodiment of the utility model comprises a motor main body 1, the motor main body 1 includes a housing 2, a stator 3, a rotor 4, a rotating shaft 5 and a centering bearing 6. The stator 3 is arranged on the circumferential side of the inner wall of the housing 2. The rotating shaft 5 is fixedly connected with the rotor 4. The rotor 4 is rotatably installed in the housing 2 through the rotating shaft 5, and the rotor 4 is located between the inner walls of the stator 3. The centering bearing 6 is arranged on one side of the rotor 4. The centering bearing 6 is used to prevent the radial swing of the shaft end of the slender shaft from exceeding the limit. One end of the housing 2 is provided with a sensor 7, and one side of the housing 2 is provided with a cable connector 8. The cable connector 8 is used to connect with an external power supply line. The whole motor shaft is a hollow shaft that penetrates up and down. There are radial holes at the centering bearing 6. When the motor rotates, under the action of centrifugal force, the oil liquid flows out from the radial holes to lubricate the centering bearing 6. One side of the motor main body 1 is provided with a notch, the notch is opened on one side of the housing 2 and is communicated with the inside of the housing 2. An oil inlet mechanism 10 and a filtering mechanism 9 are arranged in the notch. The filtering mechanism 9 is located above the oil inlet mechanism 10. The filtering mechanism 9 includes a fixed shell 11, a sliding shell 12 and a filter screen 13. The fixed shell 11 is fixedly installed in the notch. A sealing rubber ring is arranged between the fixed shell 11 and the notch. The sliding shell 12 is slidably installed in the fixed shell 11. A clamping groove 14 is formed on the circumferential side of the inner wall of the sliding shell 12. The clamping groove 14 is used for clamping and installing the filter screen 13. Among them, elastic protruding blocks are arranged on the inner wall of the clamping groove 14, and grooves are arranged on the edge frame of the filter screen 13. The elastic protruding blocks correspond to the grooves. The filter screen 13 is fixedly installed in the clamping groove 14. Threaded notches 17 are opened on the upper sides of both the sliding shell 12 and the fixed shell 11. The number of the threaded notches 17 is several. Fixed bolts 18 are installed in the threaded connection of two corresponding threaded notches 17. An opening groove 19 is opened on one side of the sliding shell 12. The opening groove 19 is communicated with the clamping groove 14. The opening groove 19 is used for disassembling the filter screen 13, and one side of the filter screen 13 is located in the opening groove 19.

[0026] Specifically, in this embodiment, when filling the lubricating oil, the filling pipe is inserted into the sliding shell 12, and then the lubricating oil is filled into the sliding shell 12. After the lubricating oil enters the sliding shell 12, it will pass through the filter screen 13, and the impurity particles in the lubricating oil can be filtered through the filter screen 13. Then, the lubricating oil enters the housing 2 through the oil inlet mechanism 10. When it is necessary to clean the impurities on the upper side of the filter screen 13, the fixing bolt 18 is unscrewed to separate it from the threaded notch 17, and then the sliding shell 12 is pulled outward, so that the sliding shell 12 drives the filter screen 13 to the fixed The fixed shell 11 is moved outward, and then, when the sliding shell 12 drives the filter 13 to move out of the fixed shell 11, the impurities on the filter 13 can be cleaned. When the filter 13 needs to be replaced, the frame of the filter 13 is pulled, wherein a handle groove is provided on one side of the frame of the filter 13, and then, the filter 13 is pulled hard so that the filter 13 is pulled out through the opening groove 19, and then, the new filter 13 is installed in the card groove 14 through the opening groove, and the sliding shell 12 is slidably installed in the fixed shell 11, and fixed with the fixing bolts 18.

[0027] The utility model provides a submersible pump motor adopting a straightening bearing sliding structure, wherein the oil inlet mechanism 10 includes an oil inlet shell 20, a sealing seat 21, a sealing bead 22 and a spring 23. The oil inlet shell 20 is fixedly installed in the notch, a sealing rubber ring is arranged between the oil inlet shell 20 and the notch, the sealing seat 21 is fixedly installed in the oil inlet shell 20, a through hole matched with the sealing bead 22 is opened in the center of the sealing seat 21, a connecting plate 24 is arranged on the lower side of the oil inlet shell 20, a spring 23 is arranged between the connecting plate 24 and the sealing bead 22, the sealing bead 22 is movably inserted in the sealing seat 21, a sealing gasket is arranged on the contact surface between the sealing seat 21 and the sealing bead 22, a first oil port 26 is arranged on the upper side of the oil inlet shell 20, a second oil port 25 is arranged on the lower side of the connecting plate 24, the spring 23 is located on the peripheral side of the second oil port 25, the upper side of the oil inlet shell 20 is tightly fitted with the lower side of the fixed shell 11, and a sealing rubber gasket is arranged between the oil inlet shell 20 and the fixed shell 11.

[0028] In another embodiment provided by the utility model, the lubricating oil filtered by the filter screen 13 will first enter the oil inlet shell 20 through the first oil port 26, and then the lubricating oil will apply pressure to the sealing bead 22, and the sealing bead 22 will leave the through hole on the sealing seat 21 under the pressure, and then the lubricating oil will enter the housing 2 through the second oil port. When the lubricating oil is stopped and the pressure is eliminated, the sealing bead 22 will block the through hole on the sealing seat 21 again under the action of the spring 23.

[0029] Only some exemplary embodiments of the present utility model have been described by way of illustration. Without doubt, for those of ordinary skill in the art, the described embodiments can be modified in various different ways without departing from the spirit and scope of the present utility model. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present utility model.

Claims

1. Submersible pump motor adopting a sliding structure of a centering bearing, including a motor main body (1), characterized in that, On one side of the motor body (1), there is a notch, and an oil inlet mechanism (10) and a filtering mechanism (9) are arranged in the notch. The filtering mechanism (9) is located above the oil inlet mechanism (10). The filtering mechanism (9) includes a fixed shell (11), a sliding shell (12) and a filter screen (13). The fixed shell (11) is fixedly installed in the notch. The sliding shell (12) is slidably installed in the fixed shell (11). A clamping groove (14) is formed on the peripheral side of the inner wall of the sliding shell (12). The filter screen (13) is fixedly installed in the clamping groove (14). Threaded notches (17) are formed on the upper sides of both the sliding shell (12) and the fixed shell (11). A fixing bolt (18) is threadedly installed in the two corresponding threaded notches (17).

2. The submersible pump motor adopting the sliding structure of the centering bearing according to claim 1, wherein, An opening groove (19) is formed on one side of the sliding shell (12). The opening groove (19) is communicated with the clamping groove (14), and one side of the filter screen (13) is located in the opening groove (19).

3. The submersible oil pump motor adopting the sliding structure of the centering bearing according to claim 1, wherein, The oil inlet mechanism (10) includes an oil inlet shell (20), a sealing seat (21), a sealing bead (22) and a spring (23). The oil inlet shell (20) is fixedly installed in the notch. The sealing seat (21) is fixedly installed in the oil inlet shell (20). A connecting plate (24) is arranged on the lower side of the oil inlet shell (20). A spring (23) is arranged between the connecting plate (24) and the sealing bead (22). The sealing bead (22) is movably inserted into the sealing seat (21).

4. The submersible oil pump motor adopting the sliding structure of the centering bearing according to claim 3, characterized in that, A first oil port (26) is arranged on the upper side of the oil inlet shell (20). A second oil port (25) is arranged on the lower side of the connecting plate (24). The upper side of the oil inlet shell (20) is closely attached to the lower side of the fixed shell (11).

5. The submerged oil pump motor adopting the sliding structure of the centering bearing according to claim 1, characterized in that, The motor body (1) includes a housing (2), a stator (3), a rotor (4), a rotating shaft (5) and a centering bearing (6). The stator (3) is arranged on the peripheral side of the inner wall of the housing (2). The rotating shaft (5) is fixedly connected to the rotor (4). The rotor (4) is rotatably installed in the housing (2) through the rotating shaft (5), and the rotor (4) is located between the inner walls of the stator (3). The centering bearing (6) is arranged on one side of the rotor (4).

6. The submersible oil pump motor adopting the sliding structure of the centering bearing according to claim 5, wherein, A sensor (7) is arranged at one end of the housing (2). A cable connector (8) is arranged on one side of the housing (2).

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