Motor structure of deep-well pump

Abstract

The utility model relates to the technical field of water pumps, in particular to a motor structure of a deep-well pump, which comprises a shell in which a stator, a rotor and a motor shaft are arranged, and is characterized in that one end of the motor shaft extends out of the shell and is used for being connected with the outside, and one end of the shell, which does not extend out of the motor shaft, is provided with a base; a mounting seat is arranged on the base, a bearing is embedded in the mounting seat, the motor shaft is detachably connected with the bearing, and the base is detachably connected with the shell. The detachable base is arranged on the shell, the motor shaft is embedded in the bearing of the base, and when the motor structure is installed, the motor shaft can be connected with the base firstly, and then the motor shaft, the stator and the rotor are installed in the shell along with the base, so that the situation that the motor shaft needs to extend into the shell for installation when the motor is installed is reduced; and the installation convenience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water pumps, in particular to a motor structure of a deep well pump. Background Art

[0002] The biggest feature of the deep well pump is that the motor and pump are made into one body. It is a kind of pump immersed in the groundwater well to suck and transport water. It is widely used in farmland irrigation and drainage, industrial and mining enterprises, urban water supply and drainage, and sewage treatment.

[0003] Deep well pumps in existing technologies are designed in various sizes, but the stator and rotor in the deep well pump usually need to be inserted into the casing of the deep well pump for installation, and the motor shaft of the motor usually also needs to be installed with a corresponding structure in the casing, which makes installation inconvenient. Utility Model Content

[0004] In order to solve the problem that the stator and rotor in the deep well pump in the existing technology usually need to be extended into the casing of the deep well pump for installation, and the motor shaft of the motor usually also needs to be installed with a corresponding structure in the casing, which makes installation inconvenient, the present application provides a motor structure for a deep well pump, and the specific solution is as follows.

[0005] A motor structure for a deep well pump includes a housing, in which a stator, a rotor, and a motor shaft are arranged. The structure is characterized in that one end of the motor shaft extends out of the housing for connection to the outside, and a base is provided at the end of the housing that does not extend out of the motor shaft. A mounting seat is provided on the base, and a bearing is embedded in the mounting seat. The motor shaft and the bearing are detachably connected, and the base and the housing are detachably connected.

[0006] By adopting the above technical solution, a detachable base is provided on the housing, and the motor shaft is embedded in the bearing of the base. When installing the motor structure, the motor shaft can be connected to the base first, and then the motor shaft, stator, and rotor are installed in the housing together with the base. This reduces the need for the motor shaft to be extended for installation during motor installation, thereby improving the convenience of installation.

[0007] Optionally, the shell is provided with a mounting opening corresponding to the base, and the base is used to be embedded in the mounting opening. Bolt holes are provided on the side wall of the shell, and corresponding bolt holes are also provided on the base. The bolts pass through the shell and are threadedly connected to the bolt holes of the base.

[0008] By adopting the above technical solution, a bolt hole is provided at the installation opening, and during installation, the housing can be connected to the base by passing the bolt through the housing, which makes the connection faster and more convenient.

[0009] Optionally, a protective tube is provided on the base facing inwardly of the shell, the protective tube is integrally provided with the base, and the protective tube is used to abut against the inner wall of the shell.

[0010] By adopting the above technical solution, a protective tube is provided on the base facing the shell, and the protective tube is abutted against the inner wall of the shell, which can reduce the leakage of liquid into the interior of the shell and improve the sealing performance of the shell.

[0011] Optionally, an embedding groove is provided on the protective tube, and the embedding groove is for the sealing ring to be embedded.

[0012] By adopting the above technical solution, an embedding groove is opened on the protective tube. After the sealing ring is embedded, it can abut the protective tube on both sides and the inner wall of the shell, thereby achieving sealing inside the shell, further improving the sealing inside the shell, and improving the stability of use.

[0013] Optionally, a mounting opening is also provided at one end of the motor shaft extending out of the housing, a connecting seat is embedded in the mounting opening, a bearing is detachably connected to the connecting seat, and the motor shaft and the bearing in the connecting seat are detachably connected and extend out of the connecting seat.

[0014] By adopting the above technical solution, a connecting seat is also provided on the side where the motor shaft extends out, and one side of the motor shaft can be installed outside the shell first and then inserted into the shell, further reducing the situation where the motor shaft is extended into the shell for installation, thereby further improving the convenience of installation.

[0015] Optionally, the connecting seat is provided with a protective tube facing the interior of the shell, and the protective tube is used to abut against the inner wall of the shell. The protective tube of the connecting seat is provided with an embedding groove for embedding the sealing ring.

[0016] By adopting the above technical solution, a protective tube is also provided on the connecting seat, which can form abutment on one side of the connecting seat and form a seal on one side of the connecting seat, further improving the sealing inside the shell and reducing the impact caused by liquid inflow.

[0017] Optionally, a plurality of connection blocks are further provided on the connection seat, and the connection blocks are circumferentially spaced around the connection seat, and the connection blocks are provided with bolt grooves for bolts to be embedded.

[0018] By adopting the above technical solution, a plurality of connecting blocks are arranged on the connecting seat, and the connecting blocks can be connected to the outside through the bolt groove, thereby further improving the convenience of the overall installation of the deep well pump.

[0019] Optionally, the base may be detachably connected to an oil cup seat, and the oil cup seat is used to install the oil cup.

[0020] By adopting the above technical solution, an oil cup seat is provided to install the oil cup. The oil cup can balance the pressure difference of the water pump in the water, and can also form an oil seal on the pump body, further improving the sealing effect of the pump body and improving the stability of the pump body during use.

[0021] In summary, this application has at least the following beneficial effects:

[0022] 1. This application solves the problem that the stator and rotor of the deep well pump in the prior art usually need to be inserted into the casing of the deep well pump for installation, and the motor shaft of the motor usually also needs to be installed in the casing with a corresponding structure, which is inconvenient to install. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional diagram of the first embodiment.

[0024] Figure 2 It is a cross-sectional view of the first embodiment.

[0025] Figure 3 It is a cross-sectional view of the second embodiment.

[0026] Description of reference numerals:

[0027] 1. Housing; 11. Stator; 12. Rotor; 13. Motor shaft; 14. Mounting port; 15. Blocking section;

[0028] 2. Base; 21. Bearing; 22. Bolt hole; 23. Protective tube; 231. Embedded groove; 24. Mounting seat;

[0029] 3. Connecting seat; 31. Connecting block; 311. Bolt slot;

[0030] 4. Oil cup holder; DETAILED DESCRIPTION

[0031] The present application is further described below in detail through specific embodiments in conjunction with the accompanying drawings.

[0032] Example 1

[0033] A motor structure of a deep well pump, such as Figure 1 and Figure 2As shown, it includes a housing 1, in which a stator 11, a rotor 12, and a motor shaft 13 are arranged. One end of the motor shaft 13 extends out of the housing 1 for connection with the outside, and a base 2 is provided on the end of the housing 1 that does not extend out of the motor shaft 13. A mounting seat 24 is provided on the base 2, and a bearing 21 is embedded in the mounting seat 24. The motor shaft 13 and the bearing 21 are detachably connected, and the base 2 is detachably connected to the housing 1. In specific implementation, the stator 11 is fixedly arranged inside the housing 1, and the rotor 12 is fixedly connected to the motor shaft 13 and needs to be extended into the interior of the housing 1 for installation. After the rotor 12 and the motor shaft 13 are installed, the rotor 12 is arranged corresponding to the stator 11. When the stator 11 and the rotor 12 cooperate, the rotor 12 can drive the motor shaft 13 to rotate, thereby realizing extraction, and the motor shaft 13 is connected to the part of the pump body used for extraction. After the connection is completed, the motor shaft 13 can drive the deep well pump to extract.

[0034] like Figure 1 and Figure 2 As shown, the housing 1 is provided with a mounting opening 14 corresponding to the base 2. The base 2 is intended to be embedded in the mounting opening 14. Bolt holes 22 are provided on the side walls of the housing 1, and corresponding bolt holes 22 are also provided on the base 2. Bolts pass through the housing 1 and are threadedly connected to the bolt holes 22 of the base 2. In a specific implementation, after the base 2 is fully embedded in the mounting opening 14, the mounting opening 14 can be completely blocked. The bolt holes 22 on the side walls of the housing 1 are each provided with a bolt hole 22 at equal intervals along the circumference of the housing 1. A bolt can be placed in each bolt hole 22. The bolt passes through the housing 1 and is threadedly connected to the side wall of the base 2, thereby completing the connection of the base 2.

[0035] like Figure 1 and Figure 2 As shown, the base 2 is provided with a protective tube 23 facing the inside of the shell 1. The protective tube 23 is provided integrally with the base 2, and the protective tube 23 is used to abut against the inner wall of the shell 1. An embedding groove 231 is provided on the protective tube 23, and the embedding groove 231 is for the sealing ring to be embedded. In a specific implementation, the embedding groove 231 is provided on the side of the protective tube 23 close to the inner wall of the shell 1. After the sealing ring is embedded, one side of the sealing ring abuts against the protective tube 23, and the other side abuts against the inner wall of the shell 1, thereby forming a seal at the installation port 14 of the shell 1, reducing the situation where external liquid enters the interior of the shell 1. In other embodiments, an oil seal can also be provided at the base 2 to further improve the sealing performance of the shell 1.

[0036] like Figure 1 and Figure 2As shown, the end of the motor shaft 13 extending out of the housing 1 is also provided with a mounting opening 14, and a connecting seat 3 is embedded in the mounting opening 14. A bearing 21 is also detachably connected to the connecting seat 3. The motor shaft 13 is detachably connected to the bearing 21 in the connecting seat 3 and extends out of the connecting seat 3. In a specific implementation, a blocking section 15 is provided on the housing 1 on one side of the motor shaft 13 corresponding to the connecting seat 3. The blocking section 15 is inclined toward the connecting seat 3 and can abut against the connecting seat 3. When installing inside the housing 1, it is only necessary to connect one end of the motor shaft 13 to the connecting seat 3 and the other end to the base 2. The connecting seat 3 is then inserted into the mounting opening 14 at the connection point of the base 2. After the connecting seat 3 is inserted to the bottom, it can abut against the blocking section 15, thereby forming a positioning to limit further movement of the stator 11, the rotor 12 and the motor shaft 13. After the positioning is completed, subsequent connections can be made, further improving the convenience of installation.

[0037] like Figure 1 and Figure 2 As shown, a protective tube 23 is also provided on the connection base 3 facing the interior of the housing 1. The protective tube 23 of the connection base 3 is also fixedly connected to the connection base 3 and is used to abut the inner wall of the housing 1. The protective tube 23 of the connection base 3 is provided with an embedding groove 231 for the sealing ring to be embedded. In specific implementations, the protective tube 23 at the connection base 3 can also form a seal with the housing 1, thereby reducing the ingress of liquid from the outside into the housing 1, further enhancing the sealing performance of the housing 1 and improving the protection of the stator 11 and rotor 12. In other embodiments, an oil seal can also be provided at the connection base 3 to further reduce the ingress of external liquid into the pump body and improve the sealing performance of the pump body.

[0038] like Figure 1 and Figure 2 As shown, the connection base 3 is also provided with a plurality of connection blocks 31. The connection blocks 31 are arranged at intervals circumferentially around the connection base 3. The connection blocks 31 are integrally formed with the connection base 3. The connection blocks 31 are provided with bolt slots 311 for bolts to be inserted. In a specific implementation, the connection blocks 31 are provided with bolt slots 311. The connection blocks 31 can be connected to the housing 1 responsible for the extraction section of the deep well pump, thereby completing the installation of the deep well pump. After connection, the motor shaft 13 is connected to the impeller shaft, etc., to realize the extraction drive and realize the extraction function of the deep well pump.

[0039] Working principle: During installation, the two ends of the motor shaft 13 can be connected to the base 2 and the connecting seat 3 respectively, and then the motor shaft 13 with the base 2 and the connecting seat 3 can be sent into the shell 1. After sending in, the base 2 and the connecting seat 3 can be connected with bolts to complete the installation of the motor structure, which improves the convenience of the motor structure installation.

[0040] Example 2

[0041] like Figure 3 As shown, the main difference between Example 2 and Example 1 is that in Example 2, an oil cup holder 4 is detachably connected to the base 2. The oil cup holder 4 is used to mount the oil cup. In practice, the oil cup holder 4 is detachably connected to the base 2 via bolts. The oil cup can also be detachably attached to the oil cup holder 4 via bolts. Once installed, the oil cup forms an oil seal on the housing 1, further improving the sealing performance within the housing 1. When a special oil cup, such as a visual oil cup, is used, the oil level can also be observed.

[0042] Working principle: The basic working principle is the same as that of embodiment 1, but the oil cup can be installed or not, which further improves the versatility of the deep well pump according to the practical occasions of the deep well pump.

[0043] The above are preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A motor structure for a deep well pump, comprising a housing (1), wherein a stator (11), a rotor (12), and a motor shaft (13) are arranged in the housing (1), characterized in that: One end of the motor shaft (13) extends out of the housing (1) for connection with the outside, and a base (2) is provided at the end of the housing (1) that does not extend out of the motor shaft (13). A mounting seat (24) is provided on the base (2), and a bearing (21) is embedded in the mounting seat (24). The motor shaft (13) and the bearing (21) are detachably connected, and the base (2) and the housing (1) are detachably connected.

2. The motor structure of a deep well pump according to claim 1, characterized in that: The shell (1) is provided with a mounting opening (14) corresponding to the base (2), and the base (2) is used to be embedded in the mounting opening (14). A bolt hole (22) is provided on the side wall of the shell (1), and a corresponding bolt hole (22) is also provided on the base (2). The bolt passes through the shell (1) and is threadedly connected to the bolt hole (22) of the base (2).

3. The motor structure of a deep well pump according to claim 2, characterized in that: The base (2) is provided with a protective tube (23) facing the inside of the shell (1); the protective tube (23) is provided integrally with the base (2); and the protective tube (23) is used to abut against the inner wall of the shell (1).

4. The motor structure of a deep well pump according to claim 3, characterized in that: An embedding groove (231) is provided on the protection tube (23), and the embedding groove (231) is for the sealing ring to be embedded.

5. The motor structure of a deep well pump according to claim 2, characterized in that: An end of the motor shaft (13) extending out of the housing (1) is also provided with a mounting opening (14), a connecting seat (3) is embedded in the mounting opening (14), a bearing (21) is detachably connected in the connecting seat (3), and the motor shaft (13) is detachably connected to the bearing (21) in the connecting seat (3) and extends out of the connecting seat (3).

6. The motor structure of a deep well pump according to claim 5, characterized in that: The connecting seat (3) is provided with a protective tube (23) facing the interior of the housing (1), and the protective tube (23) is used to abut against the inner wall of the housing (1). An embedding groove (231) for embedding a sealing ring is provided on the protective tube (23) of the connecting seat (3).

7. The motor structure of a deep well pump according to claim 5, characterized in that: The connecting seat (3) is further provided with a plurality of connecting blocks (31), the connecting blocks (31) being arranged at intervals around the connecting seat (3), and the connecting blocks (31) are provided with bolt grooves (311) for bolts to be embedded.

8. The motor structure of a deep well pump according to claim 1, characterized in that: The base (2) is also detachably connected to an oil cup seat (4), and the oil cup seat (4) is used for mounting an oil cup.

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